X-Git-Url: http://git.annexia.org/?a=blobdiff_plain;f=fish%2Fguestfish.pod;h=bfcec5cc88aac2f36beb8a1af6918435f97be8a7;hb=945e569db64ab2608b21feba0aa94044c9835ac3;hp=5e19ac2b429448645380ceda60b0034a567cda0a;hpb=c9f1a45334efca844c8918b9f0de373f16fd9766;p=libguestfs.git diff --git a/fish/guestfish.pod b/fish/guestfish.pod index 5e19ac2..bfcec5c 100644 --- a/fish/guestfish.pod +++ b/fish/guestfish.pod @@ -18,6 +18,13 @@ guestfish - the libguestfs Filesystem Interactive SHell guestfish -i disk.img [disk.img ...] +=head1 WARNING + +Using guestfish in read/write mode on live virtual machines can be +dangerous, potentially causing disk corruption. Use the I<--ro> +(read-only) option to use guestfish safely if the disk image or +virtual machine might be live. + =head1 EXAMPLES =head2 As an interactive shell @@ -113,11 +120,6 @@ shell scripts or the command line or interactively. If you want to rescue a broken virtual machine image, you should look at the L command. -Using guestfish in read/write mode on live virtual machines can be -dangerous, potentially causing disk corruption. Use the I<--ro> -(read-only) option to use guestfish safely if the disk image or -virtual machine might be live. - =head1 OPTIONS =over 4 @@ -177,6 +179,11 @@ I<--ro> might not behave correctly. See also: L. +=item B<--keys-from-stdin> + +Read key or passphrase parameters from stdin. The default is +to try to read passphrases from the user by opening C. + =item B<--listen> Fork into the background and listen for remote commands. See section @@ -523,6 +530,39 @@ it, eg: echo "~" +=head1 ENCRYPTED DISKS + +Libguestfs has some support for Linux guests encrypted according to +the Linux Unified Key Setup (LUKS) standard, which includes nearly all +whole disk encryption systems used by modern Linux guests. Currently +only LVM-on-LUKS is supported. + +Identify encrypted block devices and partitions using L: + + > vfs-type /dev/sda2 + crypto_LUKS + +Then open those devices using L. This creates a +device-mapper device called C. + + > luks-open /dev/sda2 luksdev + Enter key or passphrase ("key"): + +Finally you have to tell LVM to scan for volume groups on +the newly created mapper device: + + > vgscan + > vg-activate-all true + +The logical volume(s) can now be mounted in the usual way. + +Before closing a LUKS device you must unmount any logical volumes on +it and deactivate the volume groups by calling C +on each one. Then you can close the mapper device: + + > vg-activate false /dev/VG + > luks-close /dev/mapper/luksdev + =head1 WINDOWS PATHS If a path is prefixed with C then you can use Windows-style @@ -806,6 +846,11 @@ can be useful for benchmarking operations. @ACTIONS@ +=head1 EXIT CODE + +guestfish returns 0 if the commands completed without error, or +1 if there was an error. + =head1 ENVIRONMENT VARIABLES =over 4 @@ -823,8 +868,8 @@ L. =item HOME -If compiled with GNU readline support, then the command history -is saved in C<$HOME/.guestfish> +If compiled with GNU readline support, various files in the +home directory can be used. See L. =item LIBGUESTFS_APPEND @@ -874,10 +919,55 @@ enough. =back -=head1 EXIT CODE +=head1 FILES -guestfish returns 0 if the commands completed without error, or -1 if there was an error. +=over 4 + +=item $HOME/.guestfish + +If compiled with GNU readline support, then the command history +is saved in this file. + +=item $HOME/.inputrc + +=item /etc/inputrc + +If compiled with GNU readline support, then these files can be used to +configure readline. For further information, please see +L. + +To write rules which only apply to guestfish, use: + + $if guestfish + ... + $endif + +Variables that you can set in inputrc that change the behaviour +of guestfish in useful ways include: + +=over 4 + +=item completion-ignore-case (default: on) + +By default, guestfish will ignore case when tab-completing +paths on the disk. Use: + + set completion-ignore-case off + +to make guestfish case sensitive. + +=back + +=item test1.img + +=item test2.img (etc) + +When using the C<-N> or C<--new> option, the prepared disk or +filesystem will be created in the file C in the current +directory. The second use of C<-N> will use C and so on. +Any existing file with the same name will be overwritten. + +=back =head1 SEE ALSO