--- doc/install/linux/install.pl 2019/02/19 19:03:42 1.50 +++ doc/install/linux/install.pl 2021/03/26 18:38:03 1.75 @@ -29,6 +29,7 @@ use Term::ReadKey; use Socket; use Sys::Hostname::FQDN(); use DBI; +use File::Spec; use Cwd(); use File::Basename(); use lib File::Basename::dirname(Cwd::abs_path($0)); @@ -77,7 +78,7 @@ if (!open(LOG,">>loncapa_install.log")) &mt('Stopping execution.')."\n"; exit; } else { - print LOG '$Id: install.pl,v 1.50 2019/02/19 19:03:42 raeburn Exp $'."\n"; + print LOG '$Id: install.pl,v 1.75 2021/03/26 18:38:03 raeburn Exp $'."\n"; } # @@ -166,7 +167,18 @@ sub get_user_selection { sub get_distro { my ($distro,$gotprereqs,$updatecmd,$packagecmd,$installnow,$unknown); $packagecmd = '/bin/rpm -q LONCAPA-prerequisites '; - if (-e '/etc/redhat-release') { + if (-e '/etc/oracle-release') { + open(IN,'; + chomp($versionstring); + close(IN); + if ($versionstring =~ /^Oracle Linux Server release (\d+)/) { + my $version = $1; + $distro = 'oracle'.$1; + $updatecmd = 'yum install LONCAPA-prerequisites'; + $installnow = 'yum -y install LONCAPA-prerequisites'; + } + } elsif (-e '/etc/redhat-release') { open(IN,'; chomp($versionstring); @@ -196,7 +208,11 @@ sub get_distro { $distro = 'rhes'.$1; $updatecmd = 'yum install LONCAPA-prerequisites'; $installnow = 'yum -y install LONCAPA-prerequisites'; - } elsif ($versionstring =~ /CentOS(?:| Linux) release (\d+)/) { + } elsif ($versionstring =~ /Red Hat Enterprise Linux release (\d+)/) { + $distro = 'rhes'.$1; + $updatecmd = 'dnf install LONCAPA-prerequisites'; + $installnow = 'dnf -y install LONCAPA-prerequisites'; + } elsif ($versionstring =~ /CentOS(?:| Linux| Stream) release (\d+)/) { $distro = 'centos'.$1; $updatecmd = 'yum install LONCAPA-prerequisites'; $installnow = 'yum -y install LONCAPA-prerequisites'; @@ -308,7 +324,7 @@ sub get_distro { $unknown = 1; } } else { - print &mt('Unknown installation: expecting a debian, ubuntu, suse, sles, redhat, fedora or scientific linux system.')."\n"; + print &mt('Unknown installation: expecting a debian, ubuntu, suse, sles, redhat, fedora, scientific linux, or oracle linux system.')."\n"; } } return ($distro,$packagecmd,$updatecmd,$installnow); @@ -342,7 +358,7 @@ sub get_hostname { } # -# get_hostname() prompts the user to provide the server's IPv4 IP address +# get_hostip() prompts the user to provide the server's IPv4 IP address # # If invalid input is provided, the routine is called recursively # until, a valid IPv4 address is provided. @@ -406,23 +422,26 @@ sub check_prerequisites { sub check_locale { my ($distro) = @_; - my ($fh,$langvar,$command); + my ($fh,$langvar,$command,$earlyout); $langvar = 'LANG'; if ($distro =~ /^(ubuntu|debian)/) { if (!open($fh,"= 15)) { if (!open($fh,"= 7) { if (!open($fh,"; chomp(@data); foreach my $item (@data) { @@ -465,9 +490,13 @@ sub check_locale { $command = 'sudo locale-gen en_US.UTF-8'."\n". 'sudo update-locale LANG=en_US.UTF-8'; } elsif ($distro =~ /^(suse|sles)/) { - $command = 'yast language'; - } else { + $command = 'yast language'; + } elsif (-e '/usr/bin/system-config-language') { $command = 'system-config-language'; + } elsif (-e '/usr/bin/localectl') { + $command = '/usr/bin/localectl set-locale LANG=en_US.UTF-8'; + } else { + $command = 'No standard command found'; } } last; @@ -491,9 +520,9 @@ sub check_required { unless ($localecmd eq '') { return ($distro,$gotprereqs,$localecmd); } - my ($mysqlon,$mysqlsetup,$mysqlrestart,$dbh,$has_pass,$has_lcdb,%recommended, - $downloadstatus,$filetouse,$production,$testing,$apachefw,$tostop, - $uses_systemctl,$hostname,$hostip); + my ($mysqlon,$mysqlsetup,$mysqlrestart,$dbh,$has_pass,$mysql_unix_socket,$has_lcdb, + %recommended,$downloadstatus,$filetouse,$production,$testing,$apachefw, + $tostop,$uses_systemctl,$mysql_has_wwwuser,$hostname,$hostip); my $wwwuid = &uid_of_www(); my $wwwgid = getgrnam('www'); if (($wwwuid eq '') || ($wwwgid eq '')) { @@ -523,9 +552,8 @@ sub check_required { print_and_log("\n".&mt('Hostname is [_1] and IP address is [_2]',$hostname,$hostip)."\n"); $mysqlon = &check_mysql_running($distro); if ($mysqlon) { - my $mysql_has_wwwuser = &check_mysql_wwwuser(); - ($mysqlsetup,$has_pass,$dbh,$mysql_has_wwwuser) = - &check_mysql_setup($instdir,$dsn,$distro,$mysql_has_wwwuser); + ($mysqlsetup,$has_pass,$dbh,$mysql_has_wwwuser,$mysql_unix_socket) = + &check_mysql_setup($instdir,$dsn,$distro); if ($mysqlsetup eq 'needsrestart') { $mysqlrestart = ''; if ($distro eq 'ubuntu') { @@ -559,10 +587,10 @@ sub check_required { ($recommended{'download'},$downloadstatus,$filetouse,$production,$testing) = &need_download(); return ($distro,$gotprereqs,$localecmd,$packagecmd,$updatecmd,$installnow, - $mysqlrestart,\%recommended,$dbh,$has_pass,$has_lcdb,$downloadstatus, - $filetouse,$production,$testing,$apachefw,$uses_systemctl,$hostname, - $hostip,$sslhostsfilesref,$has_std,$has_int,$rewritenum,$nochgstd, - $nochgint); + $mysqlrestart,\%recommended,$dbh,$has_pass,$mysql_unix_socket, + $has_lcdb,$downloadstatus,$filetouse,$production,$testing,$apachefw, + $uses_systemctl,$hostname,$hostip,$sslhostsfilesref,$has_std,$has_int, + $rewritenum,$nochgstd,$nochgint); } sub check_mysql_running { @@ -588,7 +616,7 @@ sub check_mysql_running { if ($1 >= 19) { $mysqldaemon ='mariadb'; } - } elsif ($distro =~ /^(?:centos|rhes|scientific)(\d+)/) { + } elsif ($distro =~ /^(?:centos|rhes|scientific|oracle)(\d+)/) { if ($1 >= 7) { $mysqldaemon ='mariadb'; $process = 'mysqld'; @@ -715,6 +743,9 @@ sub chkconfig { if (($distro =~ /^ubuntu/) && ($version <= 8)) { $daemon{'cups'} = 'cupsys'; } + if (($distro =~ /^ubuntu/) && ($version >= 18)) { + $daemon{'ntp'} = 'chrony'; + } } elsif ($distro =~ /^fedora(\d+)/) { my $version = $1; if ($version >= 15) { @@ -729,7 +760,10 @@ sub chkconfig { if ($version >= 19) { $daemon{'mysql'} = 'mariadb'; } - } elsif ($distro =~ /^(?:centos|rhes|scientific)(\d+)/) { + if ($version >= 26) { + $daemon{'ntp'} = 'chronyd'; + } + } elsif ($distro =~ /^(?:centos|rhes|scientific|oracle)(\d+)/) { my $version = $1; if ($version >= 7) { $uses_systemctl{'ntp'} = 1; @@ -739,6 +773,9 @@ sub chkconfig { $uses_systemctl{'cups'} = 1; $daemon{'mysql'} = 'mariadb'; } + if (($version >= 8) || ($distro eq 'oracle7')) { + $daemon{'ntp'} = 'chronyd'; + } } my $nocheck; if (! -x $checker_bin) { @@ -833,7 +870,7 @@ sub chkconfig { sub uses_firewalld { my ($distro) = @_; - my ($inuse, $checkfirewalld); + my ($inuse,$checkfirewalld,$zone); if ($distro =~ /^(suse|sles)([\d\.]+)$/) { if (($1 eq 'sles') && ($2 >= 15)) { $checkfirewalld = 1; @@ -842,20 +879,20 @@ sub uses_firewalld { if ($1 >= 18) { $checkfirewalld = 1; } - } elsif ($distro =~ /^(?:centos|rhes|scientific)(\d+)/) { + } elsif ($distro =~ /^(?:centos|rhes|scientific|oracle)(\d+)/) { if ($1 >= 7) { $checkfirewalld = 1; } } if ($checkfirewalld) { my ($loaded,$active); - if (open(PIPE,"systemctl status firewalld |")) { + if (open(PIPE,"systemctl status firewalld 2>/dev/null |")) { while () { chomp(); if (/^\s*Loaded:\s+(\w+)/) { $loaded = $1; } - if (/^\s*Active\s+(\w+)/) { + if (/^\s*Active:\s+(\w+)/) { $active = $1; } } @@ -863,9 +900,18 @@ sub uses_firewalld { } if (($loaded eq 'loaded') || ($active eq 'active')) { $inuse = 1; + my $cmd = 'firewall-cmd --get-default-zone'; + if (open(PIPE,"$cmd |")) { + my $result = ; + chomp($result); + close(PIPE); + if ($result =~ /^\w+$/) { + $zone = $result; + } + } } } - return $inuse; + return ($inuse,$zone); } sub chkfirewall { @@ -876,19 +922,20 @@ sub chkfirewall { https => 443, ); my %activefw; - if (&firewall_is_active()) { - if (&uses_firewalld($distro)) { - my %current; - if (open(PIPE,'firewall-cmd --permanent --zone=public --list-services |')) { - my $svc = ; - close(PIPE); - chomp($svc); - map { $current{$_} = 1; } (split(/\s+/,$svc)); - } - if ($current{'http'} && $current{'https'}) { - $configfirewall = 0; - } - } else { + my ($firewalld,$zone) = &uses_firewalld($distro); + if ($firewalld) { + my %current; + if (open(PIPE,'firewall-cmd --permanent --zone='.$zone.' --list-services |')) { + my $svc = ; + close(PIPE); + chomp($svc); + map { $current{$_} = 1; } (split(/\s+/,$svc)); + } + if ($current{'http'} && $current{'https'}) { + $configfirewall = 0; + } + } else { + if (&firewall_is_active()) { my $iptables = &get_pathto_iptables(); if ($iptables eq '') { print &mt('Firewall not checked as path to iptables not determined.')."\n"; @@ -910,9 +957,9 @@ sub chkfirewall { print &mt('Firewall not checked as iptables Chains not identified.')."\n"; } } + } else { + print &mt('Firewall not enabled.')."\n"; } - } else { - print &mt('Firewall not enabled.')."\n"; } return ($configfirewall,\%activefw); } @@ -936,10 +983,10 @@ sub chkapache { } else { my ($configfile,$sitefile); if (($distname eq 'ubuntu') && ($version > 12)) { - $sitefile = '/etc/apache2/sites-available/loncapa'; - $configfile = "/etc/apache2/conf-available/loncapa"; + $sitefile = '/etc/apache2/sites-available/loncapa.conf'; + $configfile = '/etc/apache2/conf-available/loncapa.conf'; } else { - $configfile = "/etc/apache2/sites-available/loncapa"; + $configfile = '/etc/apache2/sites-available/loncapa'; } if (($configfile ne '') && (-e $configfile) && (-e $stdconf)) { if (open(PIPE, "diff --brief $stdconf $configfile |")) { @@ -971,17 +1018,31 @@ sub chkapache { } } } + if ((!$fixapache) && ($distname eq 'ubuntu')) { + my $sitestatus = "/etc/apache2/mods-available/status.conf"; + my $stdstatus = "$instdir/debian-ubuntu/status.conf"; + if ((-e $stdstatus) && (-e $sitestatus)) { + if (open(PIPE, "diff --brief $stdstatus $sitestatus |")) { + my $diffres = ; + close(PIPE); + chomp($diffres); + if ($diffres) { + $fixapache = 1; + } + } + } + } } elsif ($distro =~ /^(suse|sles)([\d\.]+)$/) { my ($name,$version) = ($1,$2); my $apache = 'apache'; - my $conf_file = "$instdir/sles-suse/default-server.conf"; + my $conf_file = "$instdir/sles-suse/default-server.conf"; if ($version >= 10) { $apache = 'apache2'; } if (($name eq 'sles') && ($version >= 12)) { $conf_file = "$instdir/sles-suse/apache2.4/default-server.conf"; } - if (!-e "$conf_file") { + if (!-e $conf_file) { $fixapache = 0; print &mt('Warning: No LON-CAPA Apache configuration file found for installation check.')."\n"; } elsif (-e "/etc/$apache/default-server.conf") { @@ -1010,7 +1071,8 @@ sub chkapache { } } else { my $configfile = 'httpd.conf'; - if ($distro =~ /^(?:centos|rhes|scientific)(\d+)$/) { + my $mpmfile = 'mpm.conf'; + if ($distro =~ /^(?:centos|rhes|scientific|oracle)(\d+)$/) { if ($1 >= 7) { $configfile = 'apache2.4/httpd.conf'; } elsif ($1 > 5) { @@ -1018,7 +1080,7 @@ sub chkapache { } } elsif ($distro =~ /^fedora(\d+)$/) { if ($1 > 17) { - $configfile = 'apache2.4/httpd.conf'; + $configfile = 'apache2.4/httpd.conf'; } elsif ($1 > 10) { $configfile = 'new/httpd.conf'; } @@ -1036,6 +1098,20 @@ sub chkapache { } } } + if (-e "/etc/httpd/conf.modules.d/00-mpm.conf") { + if (!-e "$instdir/centos-rhes-fedora-sl/$mpmfile") { + print &mt('Warning: No LON-CAPA Apache MPM configuration file found for installation check.')."\n"; + } elsif ((-e "/etc/httpd/conf.modules.d/00-mpm.conf") && (-e "$instdir/centos-rhes-fedora-sl/$mpmfile")) { + if (open(PIPE, "diff --brief $instdir/centos-rhes-fedora-sl/$mpmfile /etc/httpd/conf.modules.d/00-mpm.conf |")) { + my $diffres = ; + close(PIPE); + chomp($diffres); + if ($diffres) { + $fixapache = 1; + } + } + } + } } return $fixapache; } @@ -1453,11 +1529,48 @@ sub need_download { } sub check_mysql_setup { - my ($instdir,$dsn,$distro,$mysql_has_wwwuser) = @_; - my ($mysqlsetup,$has_pass); + my ($instdir,$dsn,$distro) = @_; + my ($mysqlsetup,$has_pass,$mysql_unix_socket,$mysql_has_wwwuser); my $dbh = DBI->connect($dsn,'root','',{'PrintError'=>0}); + my ($mysqlversion,$mysqlsubver,$mysqlname) = &get_mysql_version(); + if (($mysqlname =~ /^MariaDB/i) && ($mysqlversion >= 10.4)) { + if ($dbh) { + my $sth = $dbh->prepare("SELECT Priv FROM mysql.global_priv WHERE (User = 'root' AND Host ='localhost')"); + $sth->execute(); + while (my $priv = $sth->fetchrow_array) { + if ($priv =~ /unix_socket/) { + $mysql_unix_socket = 1; + last; + } + } + $sth->finish(); + if ($mysql_unix_socket) { + print_and_log(&mt('MariaDB using unix_socket for root access from localhost.')."\n"); + $mysqlsetup = 'rootok'; + $mysql_has_wwwuser = &check_mysql_wwwuser($dbh); + return ($mysqlsetup,$has_pass,$dbh,$mysql_has_wwwuser,$mysql_unix_socket); + } + } + } if ($dbh) { - $mysqlsetup = 'noroot'; + $mysqlsetup = 'noroot'; + if (($mysqlname !~ /^MariaDB/i) && ($mysqlversion >= 5.7)) { + my $sth = $dbh->prepare("SELECT plugin from mysql.user where User='root'"); + $sth->execute(); + while (my $priv = $sth->fetchrow_array) { + if ($priv =~ /auth_socket/) { + $mysql_unix_socket = 1; + last; + } + } + $sth->finish(); + if ($mysql_unix_socket) { + print_and_log(&mt('MySQL using unix_socket for root access from localhost.')."\n"); + $mysqlsetup = 'rootok'; + $mysql_has_wwwuser = &check_mysql_wwwuser($dbh); + return ($mysqlsetup,$has_pass,$dbh,$mysql_has_wwwuser,$mysql_unix_socket); + } + } } elsif ($DBI::err =~ /1045/) { $has_pass = 1; } elsif ($distro =~ /^ubuntu(\d+)$/) { @@ -1470,16 +1583,15 @@ sub check_mysql_setup { } close(PIPE); } - unless ($mysql_has_wwwuser) { - $mysql_has_wwwuser = &check_mysql_wwwuser(); - } $dbh = DBI->connect($dsn,'root','',{'PrintError'=>0}); if ($dbh) { $mysqlsetup = 'noroot'; + $mysql_has_wwwuser = &check_mysql_wwwuser($dbh); } elsif ($DBI::err =~ /1045/) { $has_pass = 1; } else { $mysqlsetup = 'needsrestart'; + $mysql_has_wwwuser = &check_mysql_wwwuser(); return ($mysqlsetup,$has_pass,$dbh,$mysql_has_wwwuser); } } @@ -1491,6 +1603,7 @@ sub check_mysql_setup { if ($dbh) { $mysqlsetup = 'rootok'; print_and_log(&mt('Password accepted.')."\n"); + $mysql_has_wwwuser = &check_mysql_wwwuser($dbh); } else { $mysqlsetup = 'rootfail'; print_and_log(&mt('Problem accessing MySQL.')."\n"); @@ -1502,27 +1615,35 @@ sub check_mysql_setup { if ($dbh) { $mysqlsetup = 'rootok'; print_and_log(&mt('Password accepted.')."\n"); + $mysql_has_wwwuser = &check_mysql_wwwuser($dbh); } else { if ($DBI::err =~ /1045/) { print_and_log(&mt('Incorrect password.')."\n"); } + $mysql_has_wwwuser = &check_mysql_wwwuser(); } } } } elsif ($mysqlsetup ne 'noroot') { print_and_log(&mt('Problem accessing MySQL.')."\n"); $mysqlsetup = 'rootfail'; + $mysql_has_wwwuser = &check_mysql_wwwuser(); } return ($mysqlsetup,$has_pass,$dbh,$mysql_has_wwwuser); } sub check_mysql_wwwuser { + my ($dbh) = @_; my $mysql_wwwuser; - my $dbhn = DBI->connect("DBI:mysql:database=information_schema",'www','localhostkey', - {PrintError => +0}) || return; - if ($dbhn) { - $mysql_wwwuser = 1; - $dbhn->disconnect; + if ($dbh) { + $mysql_wwwuser = $dbh->selectrow_array("SELECT COUNT(User) FROM mysql.user WHERE (User = 'www' AND Host ='localhost')"); + } else { + my $dbhn = DBI->connect("DBI:mysql:database=information_schema",'www','localhostkey', + {PrintError => +0}) || return; + if ($dbhn) { + $mysql_wwwuser = 1; + $dbhn->disconnect; + } } return $mysql_wwwuser; } @@ -1780,14 +1901,15 @@ print "\n".&mt('Checking system status . my $dsn = "DBI:mysql:database=mysql"; my ($distro,$gotprereqs,$localecmd,$packagecmd,$updatecmd,$installnow,$mysqlrestart, - $recommended,$dbh,$has_pass,$has_lcdb,$downloadstatus,$filetouse,$production, - $testing,$apachefw,$uses_systemctl,$hostname,$hostip,$sslhostsfiles,$has_std, - $has_int,$rewritenum,$nochgstd,$nochgint) = &check_required($instdir,$dsn); + $recommended,$dbh,$has_pass,$mysql_unix_socket,$has_lcdb,$downloadstatus, + $filetouse,$production,$testing,$apachefw,$uses_systemctl,$hostname,$hostip, + $sslhostsfiles,$has_std,$has_int,$rewritenum,$nochgstd,$nochgint) = + &check_required($instdir,$dsn); if ($distro eq '') { print "\n".&mt('Linux distribution could not be verified as a supported distribution.')."\n". &mt('The following are supported: [_1].', 'CentOS, RedHat Enterprise, Fedora, Scientific Linux, '. - 'openSuSE, SLES, Ubuntu LTS, Debian')."\n\n". + 'Oracle Linux, openSuSE, SLES, Ubuntu LTS, Debian')."\n\n". &mt('Stopping execution.')."\n"; exit; } @@ -1824,9 +1946,10 @@ if (!$gotprereqs) { exit; } else { ($distro,$gotprereqs,$localecmd,$packagecmd,$updatecmd,$installnow, - $mysqlrestart,$recommended,$dbh,$has_pass,$has_lcdb,$downloadstatus, - $filetouse,$production,$testing,$apachefw,$uses_systemctl) = - &check_required($instdir,$dsn); + $mysqlrestart,$recommended,$dbh,$has_pass,$mysql_unix_socket, + $has_lcdb,$downloadstatus,$filetouse,$production,$testing,$apachefw, + $uses_systemctl,$hostname,$hostip,$sslhostsfiles,$has_std,$has_int, + $rewritenum,$nochgstd,$nochgint) = &check_required($instdir,$dsn); } } else { print &mt('Failed to run command to install LONCAPA-prerequisites')."\n"; @@ -1923,7 +2046,8 @@ if ($callsub{'pwauth'}) { if ($callsub{'mysql'}) { if ($dbh) { - &setup_mysql($callsub{'mysqlperms'},$distro,$dbh,$has_pass,$has_lcdb); + &setup_mysql($callsub{'mysqlperms'},$dbh,$has_pass, + $mysql_unix_socket,$has_lcdb,$distro); } else { print &mt('Unable to configure MySQL because access is denied.')."\n"; } @@ -1931,7 +2055,7 @@ if ($callsub{'mysql'}) { &print_and_log(&mt('Skipping configuration of MySQL.')."\n"); if ($callsub{'mysqlperms'}) { if ($dbh) { - &setup_mysql_permissions($dbh,$has_pass); + &setup_mysql_permissions($dbh,$has_pass,$mysql_unix_socket); } else { print &mt('Unable to configure MySQL because access is denied.')."\n"; } @@ -1954,6 +2078,7 @@ if ($callsub{'apache'}) { ©_apache2_debconf($instdir,$distro,$hostname); } else { ©_httpd_conf($instdir,$distro,$hostname); + ©_mpm_conf($instdir,$distro); } } else { print_and_log(&mt('Skipping configuration of Apache web server.')."\n"); @@ -2023,9 +2148,10 @@ if ($callsub{'runlevels'}) { } if ($callsub{'firewall'}) { - if (&uses_firewalld($distro)) { + my ($firewalld,$zone) = &uses_firewalld($distro); + if ($firewalld) { my (%current,%added); - if (open(PIPE,'firewall-cmd --permanent --zone=public --list-services |')) { + if (open(PIPE,"firewall-cmd --permanent --zone=$zone --list-services |")) { my $svc = ; close(PIPE); chomp($svc); @@ -2033,7 +2159,7 @@ if ($callsub{'firewall'}) { } foreach my $service ('http','https') { unless ($current{$service}) { - if (open(PIPE,"firewall-cmd --permanent --zone=public --add-service=$service |")) { + if (open(PIPE,"firewall-cmd --permanent --zone=$zone --add-service=$service |")) { my $result = ; if ($result =~ /^success/) { $added{$service} = 1; @@ -2044,14 +2170,16 @@ if ($callsub{'firewall'}) { if (keys(%added) > 0) { print &mt('Firewall configured to allow access for: [_1].', join(', ',sort(keys(%added))))."\n"; + system('firewall-cmd --reload'); } if ($current{'http'} || $current{'https'}) { print &mt('Firewall already configured to allow access for:[_1].', (($current{'http'})? ' http':'').(($current{'https'})? ' https':''))."\n"; } unless ($current{'ssh'}) { - print &mt('If you would the like to allow access to ssh from outside, use the command[_1].', - 'firewall-cmd --permanent --zone=public --add-service=ssh')."\n"; + print &mt('If you would like to allow access to ssh from outside, use the commands:')."\n". + "firewall-cmd --permanent --zone=$zone --add-service=ssh\n". + "firewall-cmd --reload\n"; } } elsif ($distro =~ /^(suse|sles)/) { print &mt('Use [_1] to configure the firewall to allow access for [_2].', @@ -2073,14 +2201,24 @@ if ($callsub{'firewall'}) { } } } - } elsif ($distro =~ /^scientific/) { + } elsif ($distro =~ /^(scientific|oracle)/) { print &mt('Use [_1] to configure the firewall to allow access for [_2].', 'system-config-firewall-tui -- Customize', 'ssh, http')."\n"; } else { - print &mt('Use [_1] to configure the firewall to allow access for [_2].', - 'setup -- Firewall configuration -> Customize', - 'ssh, http, https')."\n"; + my $version; + if ($distro =~ /^(redhat|centos)(\d+)$/) { + $version = $1; + } + if ($version > 5) { + print &mt('Use [_1] to configure the firewall to allow access for [_2].', + 'system-config-firewall-tui -- Customize', + 'ssh, http')."\n"; + } else { + print &mt('Use [_1] to configure the firewall to allow access for [_2].', + 'setup -- Firewall configuration -> Customize', + 'ssh, http, https')."\n"; + } } } else { &print_and_log(&mt('Skipping Firewall configuration.')."\n"); @@ -2130,32 +2268,73 @@ if ($callsub{'download'}) { } print "\n".&mt('Requested configuration complete.')."\n\n"; -my $apachename; if ($have_tarball && !$updateshown) { my ($lcdir) = ($sourcetarball =~ /^([\w.\-]+)\.tar.gz$/); + my ($apachename,$lc_uses_systemctl,$uses_sudo); + if ($distro =~ /^(suse|sles|debian|ubuntu)([\d.]+)/) { + if (($1 eq 'suse') && ($2 < 10)) { + $apachename = 'apache'; + } else { + $apachename = 'apache2'; + } + } else { + $apachename = 'httpd'; + } + if ($distro =~ /^oracle(\d+)$/) { + if ($1 > 6) { + $lc_uses_systemctl = 1; + } + } elsif ($distro =~ /^(?:rhes|centos)(\d+)$/) { + if ($1 > 7) { + $lc_uses_systemctl = 1; + } + } elsif ($distro =~ /^ubuntu(\d+)$/) { + if ($1 > 16) { + $lc_uses_systemctl = 1; + } + $uses_sudo = 1; + } elsif ($distro =~ /^sles(\d+)$/) { + if ($1 > 12) { + $lc_uses_systemctl = 1; + } + } if (!-e '/etc/loncapa-release') { print &mt('If you are now ready to install LON-CAPA, enter the following commands:')."\n\n"; } else { - print &mt('If you are now ready to update LON-CAPA, enter the following commands:')."\n\n". - "/etc/init.d/loncontrol stop\n"; - if ($distro =~ /^(suse|sles|debian|ubuntu)([\d.]+)/) { - if (($1 eq 'suse') && ($2 < 10)) { - $apachename = 'apache'; - } else { - $apachename = 'apache2'; - } - } else { - $apachename = 'httpd'; + my $lcstop = '/etc/init.d/loncontrol stop'; + if ($lc_uses_systemctl) { + $lcstop = 'systemctl stop loncontrol'; + } + my $apachestop = "/etc/init.d/$apachename stop"; + if ($uses_systemctl) { + $apachestop = "systemctl stop $apachename"; + } + if ($uses_sudo) { + $lcstop = 'sudo '.$lcstop; + $apachestop = 'sudo '.$apachestop; } - print "/etc/init.d/$apachename stop\n"; + print &mt('If you are now ready to update LON-CAPA, enter the following commands:'). + "\n\n$lcstop\n$apachestop\n"; } print "cd /root\n". "tar zxf $sourcetarball\n". "cd $lcdir\n". "./UPDATE\n"; if (-e '/etc/loncapa-release') { - print "/etc/init.d/loncontrol start\n"; - print "/etc/init.d/$apachename start\n"; + my $lcstart = '/etc/init.d/loncontrol start'; + if ($lc_uses_systemctl) { + $lcstart = '/home/httpd/perl/loncontrol start'; + } + my $apachestart = "/etc/init.d/$apachename start"; + if ($uses_systemctl) { + $apachestart = "systemctl start $apachename"; + } + if ($uses_sudo) { + $lcstart = 'sudo '.$lcstart; + $apachestart = 'sudo '.$apachestart; + } + print "$lcstart\n"; + print "$apachestart\n"; } } exit; @@ -2339,17 +2518,27 @@ sub kill_extra_services { } sub setup_mysql { - my ($setup_mysql_permissions,$distro,$dbh,$has_pass,$has_lcdb) = @_; + my ($setup_mysql_permissions,$dbh,$has_pass,$mysql_unix_socket,$has_lcdb,$distro) = @_; my @mysql_lc_commands; unless ($has_lcdb) { - push(@mysql_lc_commands,"CREATE DATABASE loncapa"); + my $createcmd = 'CREATE DATABASE loncapa'; + if ($distro =~ /^sles(\d+)/) { + if ($1 > 11) { + $createcmd .= ' CHARACTER SET utf8 COLLATE utf8_general_ci'; + } + } elsif ($distro =~ /^ubuntu(\d+)/) { + if ($1 > 16) { + $createcmd .= ' CHARACTER SET latin1 COLLATE latin1_swedish_ci'; + } + } + push(@mysql_lc_commands,$createcmd); } push(@mysql_lc_commands,"USE loncapa"); push(@mysql_lc_commands,qq{ CREATE TABLE IF NOT EXISTS metadata (title TEXT, author TEXT, subject TEXT, url TEXT, keywords TEXT, version TEXT, notes TEXT, abstract TEXT, mime TEXT, language TEXT, creationdate DATETIME, lastrevisiondate DATETIME, owner TEXT, copyright TEXT, domain TEXT, dependencies TEXT, modifyinguser TEXT, authorspace TEXT, lowestgradelevel TEXT, highestgradelevel TEXT, standards TEXT, count INT, course INT, course_list TEXT, goto INT, goto_list TEXT, comefrom INT, comefrom_list TEXT, sequsage INT, sequsage_list TEXT, stdno INT, stdno_list TEXT, avetries FLOAT, avetries_list TEXT, difficulty FLOAT, difficulty_list TEXT, disc FLOAT, disc_list TEXT, clear FLOAT, technical FLOAT, correct FLOAT, helpful FLOAT, depth FLOAT, hostname TEXT, FULLTEXT idx_title (title), FULLTEXT idx_author (author), FULLTEXT idx_subject (subject), FULLTEXT idx_url (url), FULLTEXT idx_keywords (keywords), FULLTEXT idx_version (version), FULLTEXT idx_notes (notes), FULLTEXT idx_abstract (abstract), FULLTEXT idx_mime (mime), FULLTEXT idx_language (language), FULLTEXT idx_owner (owner), FULLTEXT idx_copyright (copyright)) ENGINE=MYISAM }); if ($setup_mysql_permissions) { - &setup_mysql_permissions($dbh,$has_pass,@mysql_lc_commands); + &setup_mysql_permissions($dbh,$has_pass,$mysql_unix_socket,@mysql_lc_commands); } else { print_and_log(&mt('Skipping MySQL permissions setup.')."\n"); if ($dbh) { @@ -2366,12 +2555,14 @@ CREATE TABLE IF NOT EXISTS metadata (tit } sub setup_mysql_permissions { - my ($dbh,$has_pass,@mysql_lc_commands) = @_; + my ($dbh,$has_pass,$mysql_unix_socket,@mysql_lc_commands) = @_; my ($mysqlversion,$mysqlsubver,$mysqlname) = &get_mysql_version(); - my ($usesauth,$is_mariadb,$hasauthcol,@mysql_commands); + my ($usescreate,$usesauth,$is_mariadb,$hasauthcol,@mysql_commands); if ($mysqlname =~ /^MariaDB/i) { $is_mariadb = 1; - if ($mysqlversion >= 10.2) { + if ($mysqlversion >= 10.4) { + $usescreate = 1; + } elsif ($mysqlversion >= 10.2) { $usesauth = 1; } elsif ($mysqlversion >= 5.5) { $hasauthcol = 1; @@ -2383,12 +2574,14 @@ sub setup_mysql_permissions { $hasauthcol = 1; } } - if ($usesauth) { + if ($usescreate) { + @mysql_commands = ("CREATE USER 'www'\@'localhost' IDENTIFIED BY 'localhostkey'"); + } elsif ($usesauth) { @mysql_commands = ("INSERT user (Host, User, ssl_cipher, x509_issuer, x509_subject, authentication_string) VALUES('localhost','www','','','','')"); if ($is_mariadb) { - push(@mysql_commands,"ALTER USER 'www'\@'localhost' IDENTIFIED BY 'localhostkey'"); + push(@mysql_commands,"ALTER USER 'www'\@'localhost' IDENTIFIED BY 'localhostkey'"); } else { - push(@mysql_commands,"ALTER USER 'www'\@'localhost' IDENTIFIED WITH mysql_native_password BY 'localhostkey'"); + push(@mysql_commands,"ALTER USER 'www'\@'localhost' IDENTIFIED WITH mysql_native_password BY 'localhostkey'"); } } elsif ($hasauthcol) { @mysql_commands = ("INSERT user (Host, User, Password, ssl_cipher, x509_issuer, x509_subject, authentication_string) VALUES('localhost','www',password('localhostkey'),'','','','');"); @@ -2403,7 +2596,7 @@ INSERT db (Host,Db,User,Select_priv,Inse INSERT db (Host,Db,User,Select_priv,Insert_priv,Update_priv,Delete_priv,Create_priv,Drop_priv,Grant_priv,References_priv,Index_priv,Alter_priv,Create_tmp_table_priv,Lock_tables_priv) VALUES('localhost','loncapa','www','Y','Y','Y','Y','Y','Y','N','Y','Y','Y','Y','Y')"); } push(@mysql_commands,"DELETE FROM user WHERE host<>'localhost'"); - if ($has_pass) { + if (($has_pass) || ($mysql_unix_socket)) { if ($dbh) { push(@mysql_commands,"FLUSH PRIVILEGES"); if (@mysql_commands) { @@ -2477,10 +2670,10 @@ sub new_mysql_rootpasswd { my ($currmysqlpass,$usesauth,$is_mariadb) = @_; if ($usesauth) { if ($is_mariadb) { - return ("ALTER USER 'root'\@'localhost' IDENTIFIED WITH mysql_native_password BY '$currmysqlpass'", + return ("ALTER USER 'root'\@'localhost' IDENTIFIED BY '$currmysqlpass'", "FLUSH PRIVILEGES;"); } else { - return ("ALTER USER 'root'\@'localhost' IDENTIFIED BY '$currmysqlpass'", + return ("ALTER USER 'root'\@'localhost' IDENTIFIED WITH mysql_native_password BY '$currmysqlpass'", "FLUSH PRIVILEGES;"); } } else { @@ -2495,7 +2688,7 @@ sub get_mysql_version { my $info = ; chomp($info); close(PIPE); - ($version,$subversion,$name) = ($info =~ /(\d+\.\d+)\.(\d+)\-?(\w*),/); + ($version,$subversion,$name) = ($info =~ /(\d+\.\d+)\.(\d+)(?:\-?(\w*),|)/); } else { print &mt('Could not determine which version of MySQL is installed.'). "\n"; @@ -2513,7 +2706,7 @@ sub get_mysql_version { sub copy_httpd_conf { my ($instdir,$distro,$hostname) = @_; my $configfile = 'httpd.conf'; - if ($distro =~ /^(?:centos|rhes|scientific)(\d+)$/) { + if ($distro =~ /^(?:centos|rhes|scientific|oracle)(\d+)$/) { if ($1 >= 7) { $configfile = 'apache2.4/httpd.conf'; } elsif ($1 > 5) { @@ -2534,6 +2727,50 @@ sub copy_httpd_conf { print_and_log("\n"); } +########################################################### +## +## RHEL/CentOS/Fedora/Scientific Linux +## Copy LON-CAPA mpm.conf to /etc/httpd/conf.modules.d/00-mpm.conf +## +## The LON-CAPA mpm.conf enables the prefork MPM module in +## Apache. This is also the default for RHEL/CentOS/Oracle +## Linux 7 and earlier, and Fedora 26 and earlier. For more +## recent versions of those distros, the event MPM is enabled +## by default. After ©_mpm_conf() is run, the prefork MPM +## module will be enabled instead of the event MPM module. +## +########################################################### + +sub copy_mpm_conf { + my ($instdir,$distro) = @_; + my $mpmfile = 'mpm.conf'; + if ((-e "/etc/httpd/conf.modules.d/00-mpm.conf") && + (-e "$instdir/centos-rhes-fedora-sl/$mpmfile")) { + print_and_log(&mt('Copying the LON-CAPA [_1] to [_2].',"'mpm.conf'", + "'/etc/httpd/conf.modules.d/00-mpm.conf'")."\n"); + copy "$instdir/centos-rhes-fedora-sl/$mpmfile","/etc/httpd/conf.modules.d/00-mpm.conf"; + chmod(0644,"/etc/httpd/conf.modules.d/00-mpm.conf"); + print_and_log("\n"); + } else { + my $logfail; + if ($distro =~ /^(?:centos|rhes|scientific|oracle)(\d+)$/) { + if ($1 > 7) { + $logfail = 1; + } + } elsif ($distro =~ /^fedora(\d+)$/) { + if ($1 > 26) { + $logfail = 1; + } + } + if ($logfail) { + print_and_log(&mt('Warning: copying the LON-CAPA [_1] failed because [_2] and/or [_3] are missing.', + $mpmfile,"'$instdir/centos-rhes-fedora-sl/$mpmfile'", + "'/etc/httpd/conf.modules.d/00-mpm.conf'")); + print_and_log("\n"); + } + } +} + ############################################### ## ## Copy loncapassl.conf and sslrewrite.conf @@ -3031,6 +3268,7 @@ sub copy_apache2_debconf { my $apache2_sites_enabled_dir = '/etc/apache2/sites-enabled'; my $apache2_sites_available_dir = '/etc/apache2/sites-available'; my $defaultconfig = "$apache2_sites_enabled_dir/000-default"; + my $defaultsite = "$apache2_sites_enabled_dir/loncapa.conf"; my ($distname,$version); if ($distro =~ /^(debian|ubuntu)(\d+)$/) { $distname = $1; @@ -3039,35 +3277,182 @@ sub copy_apache2_debconf { if (($distname eq 'ubuntu') && ($version > 12)) { $defaultconfig = "$apache2_sites_enabled_dir/000-default.conf"; } - if (-l $defaultconfig) { - unlink($defaultconfig); - } + my ($skipconf,$skipsite,$skipstatus); if (($distname eq 'ubuntu') && ($version > 12)) { - print_and_log(&mt('Copying loncapa [_1] config file to [_2] and pointing [_3] to it from conf-enabled.',"'apache2'","'/etc/apache2/conf-available'","'loncapa.conf symlink'")."\n"); my $apache2_conf_enabled_dir = '/etc/apache2/conf-enabled'; my $apache2_conf_available_dir = '/etc/apache2/conf-available'; - if (-e "$apache2_conf_available_dir/loncapa") { - copy("$apache2_conf_available_dir/loncapa","$apache2_conf_available_dir/loncapa.original"); - } my $defaultconf = $apache2_conf_enabled_dir.'/loncapa.conf'; - copy("$instdir/debian-ubuntu/ubuntu14/loncapa_conf","$apache2_conf_available_dir/loncapa"); - chmod(0444,"$apache2_conf_available_dir/loncapa"); - if (-l $defaultconf) { - unlink($defaultconf); - } - symlink("$apache2_conf_available_dir/loncapa","$defaultconf"); - print_and_log(&mt('Copying loncapa [_1] site file to [_2] and pointing [_3] to it from sites-enabled.',"'apache2'","'/etc/apache2/sites-available'","'000-default.conf symlink'")."\n"); - copy("$instdir/debian-ubuntu/ubuntu14/loncapa_site","$apache2_sites_available_dir/loncapa"); - chmod(0444,"$apache2_sites_available_dir/loncapa"); - symlink("$apache2_sites_available_dir/loncapa","$defaultconfig"); - } else { - print_and_log(&mt('Copying loncapa [_1] config file to [_2] and pointing [_3] to it from sites-enabled.',"'apache2'","'/etc/apache2/sites-available'","'000-default symlink'")."\n"); - if (-e "$apache2_sites_available_dir/loncapa") { - copy("$apache2_sites_available_dir/loncapa","$apache2_sites_available_dir/loncapa.original"); - } - copy("$instdir/debian-ubuntu/loncapa","$apache2_sites_available_dir/loncapa"); - chmod(0444,"$apache2_sites_available_dir/loncapa"); - symlink("$apache2_sites_available_dir/loncapa","$apache2_sites_enabled_dir/000-default"); + if ((-e "$apache2_conf_available_dir/loncapa") && (-e "$instdir/debian-ubuntu/ubuntu14/loncapa_conf")) { + if (open(PIPE, "diff --brief $apache2_conf_available_dir/loncapa $instdir/debian-ubuntu/ubuntu14/loncapa_conf |")) { + my $diffres = ; + close(PIPE); + chomp($diffres); + if ($diffres) { + copy("$apache2_conf_available_dir/loncapa","$apache2_conf_available_dir/loncapa.conf.original"); + } else { + copy("$apache2_conf_available_dir/loncapa","$apache2_conf_available_dir/loncapa.conf"); + chdir($apache2_conf_enabled_dir); + symlink('../conf-available/loncapa.conf','loncapa.conf'); + chdir($instdir); + } + if (-l $defaultconf) { + my $linkfname = readlink($defaultconf); + if ($linkfname ne '') { + $linkfname = Cwd::abs_path(File::Spec->rel2abs($linkfname,$apache2_conf_enabled_dir)); + } + if ($linkfname eq "$apache2_conf_available_dir/loncapa") { + unlink($defaultconf); + } + } + unlink("$apache2_conf_available_dir/loncapa"); + } + } + if ((-e "$apache2_conf_available_dir/loncapa.conf") && (-e "$instdir/debian-ubuntu/ubuntu14/loncapa_conf")) { + if (open(PIPE, "diff --brief $apache2_conf_available_dir/loncapa.conf $instdir/debian-ubuntu/ubuntu14/loncapa_conf |")) { + my $diffres = ; + close(PIPE); + chomp($diffres); + if ($diffres) { + copy("$apache2_conf_available_dir/loncapa.conf","$apache2_conf_available_dir/loncapa.conf.original"); + } + if (-l $defaultconf) { + my $linkfname = readlink($defaultconf); + if ($linkfname ne '') { + $linkfname = Cwd::abs_path(File::Spec->rel2abs($linkfname,$apache2_conf_enabled_dir)); + } + if ($linkfname eq "$apache2_conf_available_dir/loncapa.conf") { + unless ($diffres) { + $skipconf = 1; + } + } + } + } + } + unless ($skipconf) { + print_and_log(&mt('Copying loncapa [_1] config file to [_2] and pointing [_3] to it from conf-enabled.',"'apache2'","'/etc/apache2/conf-available'","'loncapa.conf symlink'")."\n"); + copy("$instdir/debian-ubuntu/ubuntu14/loncapa_conf","$apache2_conf_available_dir/loncapa.conf"); + chmod(0444,"$apache2_conf_available_dir/loncapa.conf"); + if (-l $defaultconf) { + unlink($defaultconf); + } + chdir($apache2_conf_enabled_dir); + symlink('../conf-available/loncapa.conf','loncapa.conf'); + chdir($instdir); + } + my $stdsite = "$instdir/debian-ubuntu/ubuntu14/loncapa_site"; + if ((-e $stdsite) && (-e "$apache2_sites_available_dir/loncapa")) { + if (open(PIPE, "diff --brief $stdsite $apache2_sites_available_dir/loncapa |")) { + my $diffres = ; + close(PIPE); + chomp($diffres); + if ($diffres) { + copy("$apache2_sites_available_dir/loncapa","$apache2_sites_available_dir/loncapa.conf.original"); + } else { + copy("$apache2_sites_available_dir/loncapa","$apache2_sites_available_dir/loncapa.conf"); + } + if (-l $defaultconfig) { + my $linkfname = readlink($defaultconfig); + if ($linkfname ne '') { + $linkfname = Cwd::abs_path(File::Spec->rel2abs($linkfname,$apache2_sites_enabled_dir)); + } + if ($linkfname eq "$apache2_sites_available_dir/loncapa") { + unlink($defaultconfig); + } + } + unlink("$apache2_sites_available_dir/loncapa"); + } + } + if ((-e $stdsite) && (-e "$apache2_sites_available_dir/loncapa.conf")) { + if (open(PIPE, "diff --brief $stdsite $apache2_sites_available_dir/loncapa.conf |")) { + my $diffres = ; + close(PIPE); + chomp($diffres); + if ($diffres) { + copy("$apache2_sites_available_dir/loncapa.conf","$apache2_sites_available_dir/loncapa.conf.original"); + } + if (-l $defaultsite) { + my $linkfname = readlink($defaultsite); + if ($linkfname ne '') { + $linkfname = Cwd::abs_path(File::Spec->rel2abs($linkfname,$apache2_sites_enabled_dir)); + } + if ($linkfname eq "$apache2_sites_available_dir/loncapa.conf") { + unless ($diffres) { + $skipsite = 1; + } + } + } + } + } + unless ($skipsite) { + print_and_log(&mt('Copying loncapa [_1] site file to [_2] and pointing [_3] to it from sites-enabled.',"'apache2'","'/etc/apache2/sites-available'","'loncapa.conf symlink'")."\n"); + copy("$instdir/debian-ubuntu/ubuntu14/loncapa_site","$apache2_sites_available_dir/loncapa.conf"); + chmod(0444,"$apache2_sites_available_dir/loncapa.conf"); + chdir($apache2_sites_enabled_dir); + symlink('../sites-available/loncapa.conf','loncapa.conf'); + chdir($instdir); + } + if (-l $defaultconfig) { + my $linkfname = readlink($defaultconfig); + if ($linkfname ne '') { + $linkfname = Cwd::abs_path(File::Spec->rel2abs($linkfname,$apache2_sites_enabled_dir)); + } + if ($linkfname eq "$apache2_sites_available_dir/000-default.conf") { + unlink($defaultconfig); + } + } + } else { + if ((-e "$instdir/debian-ubuntu/loncapa") && (-e "$apache2_sites_available_dir/loncapa")) { + if (open(PIPE, "diff --brief $instdir/debian-ubuntu/loncapa $apache2_sites_available_dir/loncapa |")) { + my $diffres = ; + close(PIPE); + chomp($diffres); + if ($diffres) { + copy("$apache2_sites_available_dir/loncapa","$apache2_sites_available_dir/loncapa.original"); + } + if (-l $defaultconfig) { + my $linkfname = readlink($defaultconfig); + if ($linkfname eq "$apache2_sites_available_dir/loncapa") { + unless ($diffres) { + $skipsite = 1; + } + } + } + } + } + unless ($skipsite) { + if (-l $defaultconfig) { + unlink($defaultconfig); + } + print_and_log(&mt('Copying loncapa [_1] config file to [_2] and pointing [_3] to it from sites-enabled.',"'apache2'","'/etc/apache2/sites-available'","'000-default symlink'")."\n"); + if (-e "$instdir/debian-ubuntu/loncapa") { + copy("$instdir/debian-ubuntu/loncapa","$apache2_sites_available_dir/loncapa"); + chmod(0444,"$apache2_sites_available_dir/loncapa"); + symlink("$apache2_sites_available_dir/loncapa","$apache2_sites_enabled_dir/000-default"); + } + } + } + if ($distname eq 'ubuntu') { + my $sitestatus = "$apache2_mods_available_dir/status.conf"; + my $stdstatus = "$instdir/debian-ubuntu/status.conf"; + if ((-e $sitestatus) && (-e $stdstatus)) { + if (open(PIPE, "diff --brief $stdstatus $sitestatus |")) { + my $diffres = ; + close(PIPE); + chomp($diffres); + if ($diffres) { + copy("$apache2_mods_available_dir/status.conf","$apache2_mods_available_dir/status.conf.original"); + } else { + $skipstatus = 1; + } + } + } + unless ($skipstatus) { + if (-e $stdstatus) { + print_and_log(&mt('Copying loncapa [_1] file to [_2],',"'status.conf'","'/etc/apache2/mods-available/status.conf'")."\n"); + copy($stdstatus,$sitestatus); + chmod(0644,$sitestatus); + } + } } print_and_log("\n"); } @@ -3139,7 +3524,7 @@ sub copy_sysconfig_apache2_file { if (($name eq 'sles') && ($version >= 12)) { $sysconf_file = "$instdir/sles-suse/apache2.4/sysconfig_apache2"; } - copy "$sysconf_file","/etc/sysconfig/apache2"; + copy $sysconf_file,"/etc/sysconfig/apache2"; chmod(0444,"/etc/sysconfig/apache2"); } @@ -3267,7 +3652,7 @@ wget http://install.loncapa.org/versions print &mt('LON-CAPA source files extracted.')."\n". &mt('It remains for you to execute the following commands:')." -cd /root/loncapa-N.N (N.N should correspond to a version number like '0.4') +cd /root/loncapa-X.Y.Z (X.Y.Z should correspond to a version number like '2.11.3') ./UPDATE ".&mt('If you have any trouble, please see [_1] and [_2]',