Man page for apt-get fsarchiver Command
This tutorial shows the man page for man fsarchiver in linux.
Open terminal with 'su' access and type the command as shown below:
man fsarchiver
Result of the Command Execution shown below:
FSARCHIVER(8) FSARCHIVER(8)
NAME
fsarchiver filesystem archiver
DESCRIPTION
fsarchiver is a system tool that allows you to save the contents of a filesystem to a compressed archive file. The file system can be restored on a partition
which has a different size and it can be restored on a different file system. Unlike tar/dar, FSArchiver also creates the filesystem when it extracts the
data to partitions. Everything is checksummed in the archive in order to protect the data. If the archive is corrupt, you just lose the current file, not the
whole archive.
LINKS
Official project homepage:
http://www.fsarchiver.org
Quick Start Guide:
http://www.fsarchiver.org/QuickStart
Forums where to ask questions:
http://www.fsarchiver.org/forums/
Report a bug:
http://www.fsarchiver.org/forums/viewforum.php?f=17
SYNOPSIS
fsarchiver [ options ] savefs archive filesystem ...
fsarchiver [ options ] restfs archive id=n,dest=filesystem[,mkfs=fstype] ...
fsarchiver [ options ] savedir archive directory ...
fsarchiver [ options ] restdir archive destination
fsarchiver [ options ] archinfo archive
fsarchiver [ options ] probe [detailed]
COMMANDS
savefs Save filesystems to archive.
restfs Restore filesystems from archive. This overwrites the existing data on filesystems. Zero based index n indicates the part of the archive to restore.
Optionally, a filesystem may be converted to fstype.
savedir
Save directories to archive (similar to a compressed tarball).
restdir
Restore data from archive which is not based on a filesystem to destination.
archinfo
Show information about an existing archive file and its contents.
probe Show list of filesystems detected on the disks.
OPTIONS
h, help
Show help and information about how to use fsarchiver with examples.
V, version
Show program version and exit.
v, verbose
Verbose mode (can be used several times to increase the level of details). The details will be printed to the console.
o, overwrite
Overwrite the archive if it already exists instead of failing.
d, debug
Debug mode (can be used several times to increase the level of details). The details will be written in /var/log/fsarchiver.log.
A, allow rw mounted
Allow to save a filesystem which is mounted in read write (live backup). By default fsarchiver fails with an error if the partition if mounted in
read write mode which allows modifications to be done on the filesystem during the backup. Modifications can drive to inconsistencies in the backup.
Using lvm snapshots is the recommended way to make backups since it will provide consistency, but it is only available for filesystems which are on
LVM logical volumes.
a, allow no acl xattr
Allow to run savefs when partition is mounted without the acl/xattr options. By default fsarchiver fails with an error if the partition is mounted in
such a way that the ACL and Extended Attributes are not readable. These attributes would not be saved and then such attributes could be lost. If you
know what you don't need ACL and Extended Attributes to be preserved then it's safe to run fsarchiver with that option.
e pattern, exclude=pattern
Exclude files and directories that match that pattern. The pattern can contains shell asterisks such as * and ?, and the pattern may be either a sim Äê
ple file/dir name or an absolute file/dir path. You must use quotes around the pattern each time you use wildcards, else it would be interpreted by
the shell. The wildcards must be interpreted by fsarchiver. See examples below for more details about this option.
L label, label=label
Set the label of the archive: it's just a comment about the contents. It can be used to remember a particular thing about the archive or the state of
the filesystem for instance.
z level, compress=level
Valid compression levels are between 1 (very fast) and 9 (very good). The memory requirement increases a lot with the best compression levels, and
it's multiplied by the number of compression threads (option j). Level 9 is considered as an extreme compression level and requires an huge amount
of memory to run. For more details please read this page: http://www.fsarchiver.org/Compression
s mbsize, split=mbsize
Split the archive into several files of mbsize megabytes each.
j count, jobs=count
Create more than one compression thread. Useful on multi core CPUs. By default fsarchiver will only use one compression thread ( j 1) and then only
one logical processor will be used for compression. You should use that option if you have a multi core CPU or more than one physical CPU on your
computer. The typical way to use this option is to specify the number of logical processors available so that all the processing power is used to com Äê
press the archive very quickly. You may also want to use all the logical processors but one for that task so that the system stays responsive for
other applications.
c password, cryptpass=password
Encrypt/decrypt data in archive. Password length: 6 to 64 chars.
EXAMPLES
save only one filesystem (/dev/sda1) to an archive:
fsarchiver savefs /data/myarchive1.fsa /dev/sda1
save two filesystems (/dev/sda1 and /dev/sdb1) to an archive:
fsarchiver savefs /data/myarchive2.fsa /dev/sda1 /dev/sdb1
restore the first filesystem from an archive (first = number 0):
fsarchiver restfs /data/myarchive2.fsa id=0,dest=/dev/sda1
restore the second filesystem from an archive (second = number 1):
fsarchiver restfs /data/myarchive2.fsa id=1,dest=/dev/sdb1
restore two filesystems from an archive (number 0 and 1):
fsarchiver restfs /data/arch2.fsa id=0,dest=/dev/sda1 id=1,dest=/dev/sdb1
restore a filesystem from an archive and convert it to reiserfs:
fsarchiver restfs /data/myarchive1.fsa id=0,dest=/dev/sda1,mkfs=reiserfs
save the contents of /usr/src/linux to an archive (similar to tar):
fsarchiver savedir /data/linux sources.fsa /usr/src/linux
save a /dev/sda1 to an archive split into volumes of 680MB:
fsarchiver savefs s 680 /data/myarchive1.fsa /dev/sda1
save a filesystem and exclude all files/dirs called 'pagefile.*'
fsarchiver savefs /data/myarchive.fsa /dev/sda1 exclude='pagefile.*'
exclude 'share' in both '/usr/share' and '/usr/local/share':
fsarchiver savefs /data/myarchive.fsa exclude=share
absolute exclude valid for '/usr/share' but not '/usr/local/share'
fsarchiver savefs /data/myarchive.fsa exclude=/usr/share
save a filesystem (/dev/sda1) to an encrypted archive:
fsarchiver savefs c mypassword /data/myarchive1.fsa /dev/sda1
extract an archive made of simple files to /tmp/extract:
fsarchiver restdir /data/linux sources.fsa /tmp/extract
show information about an archive and its file systems:
fsarchiver archinfo /data/myarchive2.fsa
WARNING
fsarchiver is still in development, don't use it for critical data yet.
AUTHOR
fsarchiver was written by Francois Dupoux. It is released under the GPL2 (GNU General Public License version 2). This manpage was written by Ilya Barygin and
Francois Dupoux.
30 December 2009 FSARCHIVER(8)-
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