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recipes: Checksum file/device. Download to stdout.

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Richard W.M. Jones
2012-09-02 16:26:09 +01:00
parent a1d981edea
commit b799bc58a8
1 changed files with 26 additions and 0 deletions
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examples/guestfs-recipes.pod
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@@ -30,6 +30,28 @@ Windows.
L<https://lists.fedoraproject.org/pipermail/virt/2011-May/002655.html>
L<https://lists.fedoraproject.org/pipermail/virt/2011-May/002658.html>
=head1 Checksum a file or device within a disk image
To checksum a whole device, or a partition, LV etc within a disk image:
guestfish --ro -a disk.img run : checksum-device md5 /dev/sda1
Replace C<md5> with the type of checksum you want. See
L<guestfs(3)/guestfs_checksum_device> for a list of supported types.
C</dev/sda1> means "the first partition". You could use C</dev/sda>
to checksum the whole disk image, or the name of a logical volume or
RAID device.
To checksum a single file:
guestfish --ro -a disk.img -i checksum sha256 /etc/passwd
or for a Windows guest:
guestfish --ro -a disk.img -i \
checksum sha256 'win:\windows\system32\config\SOFTWARE'
=head1 Cloning a virtual machine
Use a combination of tools like L<cp(1)>, L<dd(1)>, and
@@ -89,6 +111,10 @@ one which is encrypted or buried inside an LV or RAID device):
guestfish --ro -d Guest run : download /dev/vg_guest/lv_root lv.img
To download to stdout, replace the filename with a C<-> character:
guestfish --ro -a disk.img run : download /dev/sda1 - | hexdump -C
To list the filesystems in a disk image, use L<virt-filesystems(1)>.
=head1 Edit grub configuration in a VM