diff options
Diffstat (limited to 'tools/drakx-in-chroot')
| -rwxr-xr-x[-rw-r--r--] | tools/drakx-in-chroot | 227 |
1 files changed, 176 insertions, 51 deletions
diff --git a/tools/drakx-in-chroot b/tools/drakx-in-chroot index fbda29eb9..6565ec9e0 100644..100755 --- a/tools/drakx-in-chroot +++ b/tools/drakx-in-chroot @@ -7,15 +7,47 @@ my $SLASH_LOCATION = '/tmp/drakx-in-chroot'; my $verbose = 0; my $prefix_ROOTED = '/mnt'; my $IMAGE_LOCATION_ROOTED = '/tmp/image'; +my $MEDIA_LOCATION_ROOTED = '/tmp/media'; my $STAGE2_LOCATION_ROOTED = '/tmp/stage2'; +my $LOOP_MOUNT_POINT = "$SLASH_LOCATION/tmp/loop"; my $LIVE_LOCATION_REL = 'install/stage2/live/'; -my $CLP_LOCATION_REL = 'install/stage2/'; -my $CLP_FILE_REL = $CLP_LOCATION_REL . 'mdkinst.clp'; -my $AUTO_INSTALL_ROOTED = '/tmp/drakx-in-chroot.cfg.pl'; +my $COMPRESSED_LOCATION_REL = 'install/stage2/'; +my $COMPRESSED_FILE_REL = $COMPRESSED_LOCATION_REL . 'mdkinst.sqfs'; +my $AUTO_INSTALL_ROOTED = '/tmp/auto_inst.cfg.pl'; +my $DEFCFG_ROOTED = '/tmp/defcfg.pl'; +my $RPMSRATE_ROOTED = '/tmp/rpmsrate'; +my $resolution = '1024x768'; +my ($disk_iso_repository, $repository_uri); -@ARGV >= 2 or die "usage: drakx-in-chroot <repository> <dir to install to> [options]\n"; +@ARGV >= 2 or die "usage: drakx-in-chroot <root of distrib> <dir to install to> [options]\n +\nOptions specific to drakx-in-chroot: + --flang XX use XX locale + --disk-iso path of a distro + --resolution=XXXxYYYY (eg: --resolution=800x600)\n + --repository=<path> path of packages repository + --text text mode installer + --depth=XX set screen color depth + --stage2-update X,Y will mount --bind X on Y +"; (my $repository, my $dir, @ARGV) = @ARGV; +my ($wrapper); +foreach (@ARGV) { + if (/--resolution=(.*)/) { + $resolution = $1; + } elsif (/--disk-iso=(.*)/) { + $disk_iso_repository = $1; + } elsif (/--repository=(.*)/) { + $repository_uri = $1; + } elsif (/--gdb/) { + $wrapper = "gdb -q --args"; + } elsif (/--strace/) { + $wrapper = "strace -e file $ENV{STRACE_OPTIONS}"; + } elsif (/--depth=(.*)/) { + $resolution .= "x$1"; + } +} +my ($repository_without_arch, $repository_arch) = basename($repository) eq arch() ? (dirname($repository), '/' . arch()) : ($repository, ''); my $STAGE2_LOCATION = $SLASH_LOCATION . $STAGE2_LOCATION_ROOTED; my $sudo; @@ -24,46 +56,93 @@ if ($>) { $ENV{PATH} = "/sbin:/usr/sbin:$ENV{PATH}"; } +my @mounts; +my $_b = before_leaving { sys("$sudo umount $_") foreach reverse @mounts }; + undef $ENV{TMPDIR}; # prevent packdrake faillure on creating temporary files if (-d $SLASH_LOCATION) { - umount_all() == 0 or die "$SLASH_LOCATION is busy\n"; + umount_all(1) == 0 or exit(1); sys("$sudo rm -rf $SLASH_LOCATION/var/lib/rpm $SLASH_LOCATION/dev/mapper"); rm_rf($SLASH_LOCATION); } -mkdir_p("$SLASH_LOCATION$_") foreach '/dev', '/dev/usb', '/etc', '/var', '/proc', $STAGE2_LOCATION_ROOTED, $IMAGE_LOCATION_ROOTED, $prefix_ROOTED; +mkdir_p("$SLASH_LOCATION$_") foreach '/dev', '/etc', '/var', '/proc', '/sys', '/run', $STAGE2_LOCATION_ROOTED, $MEDIA_LOCATION_ROOTED, $prefix_ROOTED; sys("$sudo rm -rf $dir") if $ENV{CLEAN}; -e $dir or sys("$sudo mkdir -p $dir"); copy_auto_install_files(); -if (-d "$repository/$LIVE_LOCATION_REL") { - sys("$sudo mount -o bind $repository/$LIVE_LOCATION_REL $STAGE2_LOCATION"); -} elsif (-e "$repository/$CLP_FILE_REL") { - my $dev = find_free_loop(); - sys("$sudo modprobe gzloop"); - sys("$sudo losetup -r -e gz $dev $repository/$CLP_FILE_REL"); - sys("$sudo mount -r $dev $STAGE2_LOCATION"); +my $remote_repository = $repository =~ m!^(ftp|http)://! && $1; +if ($remote_repository) { + my $local_mdkinst = "$SLASH_LOCATION/tmp/mdkinst.sqfs"; + sys("curl --silent -o $local_mdkinst $repository/$COMPRESSED_FILE_REL"); + mount_mdkinst($local_mdkinst); +} elsif (-d "$repository/$LIVE_LOCATION_REL") { + mount("$repository/$LIVE_LOCATION_REL", $STAGE2_LOCATION, "-o bind"); +} elsif (-e "$repository/$COMPRESSED_FILE_REL") { + mount_mdkinst("$repository/$COMPRESSED_FILE_REL"); +} + +mount($dir, "$SLASH_LOCATION$prefix_ROOTED", "-o bind"); +$repository_uri ||= $repository_without_arch if !$remote_repository; +mount($repository_uri, "$SLASH_LOCATION$MEDIA_LOCATION_ROOTED", "-o bind") if $repository_uri; + +mount('/dev', "$SLASH_LOCATION/dev", " --bind -o ro"); +mount('none', "$SLASH_LOCATION/proc", "-t proc"); +mount('none', "$SLASH_LOCATION/sys", "-t sysfs"); +mount('none', "$SLASH_LOCATION/sys/kernel/debug", "-t debugfs"); +mount('none', "$SLASH_LOCATION/run", "-t tmpfs"); + +# - Ensure we mount the udev run dir for various extra metadata from udevadm +# - If dracut has been used (and thus udev has yummy metadata) make sure +# drakx knows about it when running in the chroot +# - Also speedup blkid by using its cache +foreach my $dir (qw(initramfs udev blkid)) { + next if !-d "/run/$dir"; + mkdir_p("$SLASH_LOCATION/run/$dir"); + mount("/run/$dir", "$SLASH_LOCATION/run/$dir", "-o bind"); } -sys("$sudo mount -o bind $dir $SLASH_LOCATION$prefix_ROOTED"); -sys("$sudo mount -o bind $repository $SLASH_LOCATION$IMAGE_LOCATION_ROOTED"); -sys("$sudo mount -t proc none $SLASH_LOCATION/proc"); +if ($disk_iso_repository) { + my $repository_arch = $repository_arch || 'i586'; + mkdir_p($LOOP_MOUNT_POINT); + mount($disk_iso_repository, $LOOP_MOUNT_POINT, "-o loop,ro"); + symlinkf('loop/' . $repository_arch, "$SLASH_LOCATION$IMAGE_LOCATION_ROOTED"); # FIXME: arch() +} + +symlinkf('media' . $repository_arch, "$SLASH_LOCATION$IMAGE_LOCATION_ROOTED"); create_initial_symlinks(); -create_initial_devices(); + +apply_stage2_updates(); output("$SLASH_LOCATION/etc/hosts", "127.0.0.1 localhost\n") if ! -e "$SLASH_LOCATION/etc/hosts"; +#- in the chroot, we have no way to know which device corresponds to the "/" partition. +#- so helping it by giving the device which provide major/minor information +mkdir_p("$dir/dev"); +eval { cp_af($_, "$dir$_") } foreach qw(/dev/root); + +#- if the DISPLAY is remote, we may need to resolve the name: +eval { cp_af('/etc/resolv.conf', "$SLASH_LOCATION/etc/resolv.conf") }; + +{ + chomp(my $kernel_version = `uname -r`); + my $dir = "/modules/$kernel_version"; + mkdir_p("$SLASH_LOCATION$dir"); + output_p("$SLASH_LOCATION$dir" . $_, "\n") foreach "/lib/$dir/modules.dep", "/lib/$dir/modules.alias"; +} + my $Xnest_pid; -if (!-f ($SLASH_LOCATION . $AUTO_INSTALL_ROOTED) && whereis_binary('Xnest')) { +if (!-f ($SLASH_LOCATION . $AUTO_INSTALL_ROOTED) && join('', @ARGV) !~ /--text/) { + my $Xnest_bin = find { whereis_binary($_) } 'Xephyr', 'Xnest' or die "Xephyr not found! Please install x11-server-xephyr!\n"; my $DISPLAY = ':8'; $Xnest_pid = fork(); if (!$Xnest_pid) { - exec 'Xnest', $DISPLAY, '-ac', '-geometry', '800x600' or die "Xnest failed\n"; + exec $Xnest_bin, $DISPLAY, '-ac', ($Xnest_bin eq 'Xephyr' ? '-screen' : '-geometry'), $resolution or die "Xnest failed\n"; } - $ENV{DISPLAY} = 'localhost' . $DISPLAY; + $ENV{DISPLAY} = $DISPLAY; } if (my $pid = fork()) { @@ -71,26 +150,38 @@ if (my $pid = fork()) { umount_all() == 0 or warn "umounting failed\n"; $Xnest_pid and kill 15, $Xnest_pid; } else { + $ENV{TERM} = 'linux'; # we only have terminfo for terminal "linux" $ENV{HOME} = '/'; - # to kept sync with gi/mdk-stage1/init.c::env: - $ENV{LD_LIBRARY_PATH}='/lib:/usr/lib:/mnt/lib:/mnt/usr/lib:/usr/X11R6/lib:/mnt/usr/X11R6/lib:/lib64:/usr/lib64:/usr/X11R6/lib64:/mnt/lib64:/mnt/usr/lib64:/mnt/usr/X11R6/lib64'; - my $cmd = join(' ', "/usr/bin/runinstall2 --local_install", @ARGV); - exec "$sudo chroot $SLASH_LOCATION $cmd" or die "exec $cmd in $SLASH_LOCATION failed\n"; + # to kept sync with mdk-stage1/init.c::env: + $ENV{LD_LIBRARY_PATH}='/lib:/usr/lib:/mnt/lib:/mnt/usr/lib:/lib64:/usr/lib64:/mnt/lib64:/mnt/usr/lib64'; + if ($remote_repository) { + $ENV{URLPREFIX} = $repository; + } + my $cmd = join(' ', "/usr/bin/runinstall2 --local_install", + if_($disk_iso_repository, "--method disk-iso"), + if_($remote_repository, "--method $remote_repository"), + @ARGV); + if ($wrapper) { + warn qq(GDB USAGE +Beware that debug info won't be found so on segfault +just generate a core dump with "gcore" and then +analyze it offline. +Thus you sessions will look like: +(gdb) run +(gdb) gcore +(gdb) exit +); + } + exec "$sudo $wrapper chroot $SLASH_LOCATION $cmd" or die "exec $cmd in $SLASH_LOCATION failed\n"; } sub system_verbose { warn join(' ', @_), "\n" if $verbose; system(@_) } sub sys { &system_verbose; $? and die qq(running "@_" failed: $?\n) } -sub find_free_loop() { - foreach (0..255) { - my $dev = "/dev/loop$_"; - system("$sudo losetup $dev >/dev/null 2>&1") != 0 or next; - warn "found free loop $dev\n"; - return $dev; - } - die "no free loop found"; +sub mount_mdkinst { + my ($mdkinst) = @_; + mount($mdkinst, $STAGE2_LOCATION, "-t squashfs -o loop,ro"); } - sub create_initial_symlinks() { foreach (cat_or_die("$STAGE2_LOCATION/usr/share/symlinks")) { my ($from, $to_) = split; @@ -100,29 +191,40 @@ sub create_initial_symlinks() { symlink $from, $to or die "symlinking $to failed\n"; } } + my $from = "$STAGE2_LOCATION_ROOTED/usr"; + my $to = "$SLASH_LOCATION/usr"; + symlink $from, $to or die "symlinking $to failed\n"; + foreach ('bin', 'sbin', 'lib', 'lib64') { + $from = "usr/$_"; + $to = "$SLASH_LOCATION/$_"; + symlink $from, $to or die "symlinking $to failed\n"; + } } -sub create_initial_devices() { - foreach (cat_or_die("$STAGE2_LOCATION/usr/share/devices")) { - my ($node, $type, $major, $minor) = split; - sys("$sudo mknod $SLASH_LOCATION$node $type $major $minor") if ! -e "$SLASH_LOCATION$node"; - } +sub mount { + my ($from, $mntpt, @opts) = @_; + push @mounts, $mntpt; + sys("$sudo mount $from $mntpt " . join(' ', @opts)); } -sub umount_all() { +sub umount_all { + my ($b_umount_dev_too) = @_; my $err; - my @procs = ('/proc/bus/usb', '/proc', '/sys'); - foreach ((map { "$prefix_ROOTED$_" } @procs, ''), @procs, $STAGE2_LOCATION_ROOTED, $IMAGE_LOCATION_ROOTED) { + clean_stage2_updates(); + my @procs = (qw(/proc /sys/kernel/debug /sys /run/udev /run/blkid /run/initramfs /run)); + # special case for !draklive case (else a 2nd run would fail): + if ($b_umount_dev_too && cat_('/proc/mounts') =~ m! $SLASH_LOCATION/dev !) { + system_verbose "$sudo umount $SLASH_LOCATION/dev" and rm_rf("$SLASH_LOCATION/dev"); + } + foreach ((map { "$prefix_ROOTED$_" } @procs, '/dev', ''), @procs, $STAGE2_LOCATION_ROOTED, $LOOP_MOUNT_POINT, $MEDIA_LOCATION_ROOTED, $IMAGE_LOCATION_ROOTED) { my $dir = "$SLASH_LOCATION$_"; rmdir $dir; if (-d $dir) { - if (m!/proc/bus/usb! || begins_with($_, $prefix_ROOTED)) { + if (m!/sys/kernel/debug! || begins_with($_, $prefix_ROOTED)) { system_verbose "$sudo umount $dir 2>/dev/null"; next; } - my ($loop) = cat_('/proc/mounts') =~ m!^(/dev/loop\d+) .*\Q$dir\E !m; system_verbose "$sudo umount $dir"; - sys("$sudo losetup -d $loop") if $loop; } rmdir $dir; if (-d $dir) { @@ -130,24 +232,47 @@ sub umount_all() { $err++; } } + if (my @remaining = cat_('/proc/mounts') =~ m!($SLASH_LOCATION/mnt/\S+)!g) { + warn "umount those mount points first: ", join(' ', @remaining), "\n"; + $err++; + } $err; } sub copy_auto_install_files() { my ($opt); - my ($auto_install, $defcfg); each_index { if ($opt eq 'auto_install' && -f $_) { - $auto_install = $_; + cp_f($_, $SLASH_LOCATION . $AUTO_INSTALL_ROOTED); $_ = $AUTO_INSTALL_ROOTED; } elsif ($opt eq 'defcfg' && -f $_) { - $defcfg = $_; - $ARGV[$::i-1] = $ARGV[$::i] = undef; + cp_f($_, $SLASH_LOCATION . $DEFCFG_ROOTED); + $_ = $DEFCFG_ROOTED; + } elsif ($opt eq 'rpmsrate' && -f $_) { + cp_f($_, $SLASH_LOCATION . $RPMSRATE_ROOTED); } undef $opt; /^--?(.*)/ and $opt = $1; } @ARGV; - #- contatenate auto_install and defcfg files into a new auto_install file in install root - my @auto_inst = grep { -f $_ } $auto_install, $defcfg; - output($SLASH_LOCATION . $AUTO_INSTALL_ROOTED, cat_(@auto_inst)) if @auto_inst; +} + +my @stage2_updates; +sub apply_stage2_updates() { + each_index { + if ($_ eq '--stage2-update') { + my $file = $ARGV[$::i+1]; + my $dest = $ARGV[$::i+2]; + if (-f $file && $dest) { + undef $_; + undef $ARGV[$::i+1]; + undef $ARGV[$::i+2]; + push @stage2_updates, $dest; + mount($file, "$STAGE2_LOCATION/$dest", " --bind"); + } + } + } @ARGV; +} + +sub clean_stage2_updates() { + sys("$sudo umount $STAGE2_LOCATION/$_") foreach @stage2_updates; } |