[Grml] /dev, udev and backup
Michael Prokop
mika at grml.org
Fri Jul 11 22:15:57 CEST 2008
* T o n g <mlist4suntong at yahoo.com> [20080711 17:46]:
> Do I need to backup the /dev directory when backing up my root fs?
> FYI, I thought udev would populate it on boot up so I didn't backup the /dev
> directory. However, I got
> Warning: unable to open initial console
> and the boot froze.
> Going through all the possible reasons in http://kerneltrap.org/node/2205
> did I realize that my /dev directory should be backed up & populated.
Well, static devices can be found in /dev/.static/dev
and if configured/used also in /lib/udev/devices.
What's really important are the null, zero, console and tty[0-9]
devices which are all easy to generate/restore using MAKEDEV in case
you lose them.
So basically it's not necessary to backup /dev as long as you know
how to recover it ;) - but as /dev is usually less than 1MB size it
won't hurt to place it in your backups as well. ;)
hth && regards,
-mika-
--
http://grml.org/ # Linux for texttool-users and sysadmins
http://wiki.grml.org/ # share your knowledge
http://grml.supersized.org/ # the grml development weblog
#grml @ irc.freenode.org # meet us on irc
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 189 bytes
Desc: Digital signature
Url : http://lists.mur.at/pipermail/grml/attachments/20080711/32959ec7/attachment.pgp
More information about the Grml
mailing list