live-snapshot

Langue: en

Autres versions - même langue

Version: 02/09/2009 (ubuntu - 07/07/09)

Section: 1 (Commandes utilisateur)

Sommaire

NAME

live-snapshot - a simple script to ease persistence usage

SYNOPSIS

live-snapshot [-c|--cow DIRECTORYs] [-d|--device DEVICE] [-e|--exclude-list FILE] [-o|--output FILE] [-t|--type TYPE]

live-snapshot [-r|--resync-string STRING]

live-snapshot [-h|--help]

live-snapshot [-u|--usage]

live-snapshot [-v|--version]

DESCRIPTION

live-snapshot is a script which can be used to build the right types of persistent image files supported by live-initramfs(7). It is also used on exit by the live-initramfs init script to resync the boot-found snapshots devices.

OPTIONS

-c, --cow DIRECTORY

specifies the input directory to be cloned in the image file. Its default value "/live/cow" should be right for most uses. However it could be handy to specify "/home" and type ext2 for the type to prepare an image file suited to be directly mounted by live-initramfs as home.

-d, --device DEVICE

sets the device where the media which the snapshot/persistence file/partition will be put. If it is not specified, a tmpfs will be used and linked to the user's desktop to move it where it is needed. If the device has no filesystem, an ext2 fs will be automatically created and labelled according to the values specified after the "--output" value or with a sane default.

-e, --exclude-list FILE

a file containing a list of filenames/paths that should not be saved. This exclude list will be remebered on the target snapshot media for reuse.

-o, --output FILE

the filename/label used for the output file/partition. If left blank, live-snapshot will search for a proper file on the device or use the whole partition.

-r, --resync-string STRING

internally used on resyncs.

-f, --refresh

try to do the same operation that should be done at reboot or halt, resyncing boot-time auto discovered snapshots. Useful to prevent a crash or surge power-off.

-t, --type TYPE

Type could be one of "cpio", "squashfs", "ext2", "ext3" or "jffs2".

-h, --help

display help and exit

-u, --usage

show usage and exit

-v, --version

output version information and exit

FILES

 /etc/live-snapshot.list
This optional file, if present changes the behaviour of live-snapshot, only files and directories listed there are included (integrally) in the snapshot. It works only for cpio targets. 
 /etc/live-snapshot.exclude_list
This optional file, if present will filter the files that will be saved by live-snapshot removing (as in "grep -F -v") all filenames that will be matched by strings listed in it. It works for cpio and squashfs snapshot types only; it is pretty useful for filtering temporary files and disk caches.

SEE ALSO

live-initramfs(8)

This program is a part of live-initramfs.

BUGS

Report bugs against live-initramfs http://packages.qa.debian.org/live-initramfs.

HOMEPAGE

More information about the Debian Live project can be found at http://debian-live.alioth.debian.org/ and http://wiki.debian.org/DebianLive/.

AUTHORS

live-initramfs is maintained by Daniel Baumann <daniel@debian.org[1]> for the Debian project. live-initramfs is a fork of casper[2]. casper was originally written by Tollef Fog Heen <tfheen@canonical.com[3]> and Matt Zimmerman <mdz@canonical.com[4]>.

NOTES

1.
daniel@debian.org
mailto:daniel@debian.org
2.
casper
http://packages.ubuntu.com/casper/
3.
tfheen@canonical.com
mailto:tfheen@canonical.com
4.
mdz@canonical.com
mailto:mdz@canonical.com