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author | Richard Jones <rjones@trick.home.annexia.org> | 2009-09-22 19:50:21 +0100 |
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committer | Richard Jones <rjones@trick.home.annexia.org> | 2009-09-23 11:18:45 +0100 |
commit | 1b21ed4f5d9307e87fad094ec177c90d5adb91ce (patch) | |
tree | f702b661a1c743ef6836ceda109f567e1c11e214 /rescue/run-rescue-locally | |
parent | 3bc55551356532c17403508dfd8466beb2b9db1e (diff) | |
download | libguestfs-1b21ed4f5d9307e87fad094ec177c90d5adb91ce.tar.gz libguestfs-1b21ed4f5d9307e87fad094ec177c90d5adb91ce.tar.xz libguestfs-1b21ed4f5d9307e87fad094ec177c90d5adb91ce.zip |
Add 'virt-rescue' command.
This command runs a "rescue appliance" against a virtual machine
or disk image. This is useful for making ad-hoc interactive
changes to virtual machines.
$ virt-rescue --ro /dev/vg_trick/F11x64
Welcome to virt-rescue, the libguestfs rescue shell.
Note: The contents of / are the rescue appliance.
You have to mount the guest's partitions under /sysroot
before you will be able to examine them.
bash: cannot set terminal process group (-1): Inappropriate ioctl for device
bash: no job control in this shell
><rescue> mount /dev/vg_f11x64/lv_root /sysroot
EXT4-fs (dm-0): barriers enabled
kjournald2 starting: pid 269, dev dm-0:8, commit interval 5 seconds
EXT4-fs (dm-0): internal journal on dm-0:8
EXT4-fs (dm-0): delayed allocation enabled
EXT4-fs: file extents enabled
EXT4-fs: mballoc enabled
EXT4-fs (dm-0): mounted filesystem with ordered data mode
><rescue> ls /sysroot/
bin dev home lib64 media opt root selinux sys usr
boot etc lib lost+found mnt proc sbin srv tmp var
><rescue> exit
Diffstat (limited to 'rescue/run-rescue-locally')
-rwxr-xr-x | rescue/run-rescue-locally | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/rescue/run-rescue-locally b/rescue/run-rescue-locally new file mode 100755 index 00000000..d814ed5f --- /dev/null +++ b/rescue/run-rescue-locally @@ -0,0 +1,53 @@ +#!/usr/bin/perl +# virt-rescue +# Copyright (C) 2009 Red Hat Inc. +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + +# This script sets up the environment so you can run virt-rescue in +# place without needing to do 'make install' first. You can also run +# virt-rescue by creating a symlink to this script and putting it in +# your path. +# +# Use it like this: +# ./run-rescue-locally [usual virt-rescue args ...] + +use strict; +use warnings; + +use File::Basename qw(dirname); +use File::Spec; +use Cwd qw(abs_path); + +my $path = $0; + +# Follow symlinks until we get to the real file +while(-l $path) { + my $link = readlink($path); + if(File::Spec->file_name_is_absolute($link)) { + $path = $link; + } else { + $path = File::Spec->catfile(dirname($path), $link); + } +} + +# Get the absolute path of the parent directory +$path = abs_path(dirname($path).'/..'); + +$ENV{LD_LIBRARY_PATH} = $path.'/src/.libs'; +$ENV{LIBGUESTFS_PATH} = $path.'/appliance'; +$ENV{PERL5LIB} = $path.'/perl/blib/lib:'.$path.'/perl/blib/arch'; + +exec('perl', $path.'/rescue/virt-rescue.pl', @ARGV); |