From: Teo on
On May 7, 1:42 pm, Adam Funk <a24...(a)ducksburg.com> wrote:
> On 2008-05-06, Matthew Lincoln wrote:
>
> > I want to backup my Linux system (with rsync).
> > What is recommended to backup and what not?
>
> > Of cause, all the personal stuff should be saved but what about the "normal" system
> > stuff of the OS?
>
> > Which of the files, dirs and settings should be backuped?
>
> Definitely /etc, or at least the bits of it that you've customized.

And much more. Here some examples from a RedHat box:
* /usr/local if you installed something manually from source.
* /var/log
* /var/lib examples:
* /var/lib/imap and /var/spool/imap if you have an imap server
* /var/lib/mailman if you are using mailman
* /var/lib/mysql databases
* /var/www
I would suggest you to backup everything (excluding temporary stuff
like /tmp) or to be very careful.

Matteo

From: Roby on
Matthew Lincoln wrote:

> I want to backup my Linux system (with rsync).
> What is recommended to backup and what not?
>
> Of cause, all the personal stuff should be saved but what about the
> "normal" system stuff of the OS?
>
> Which of the files, dirs and settings should be backuped?
>
> And the same question on what NOT to backup? Is there more to exclude than
> /proc?
>
> Matthew

I run Debian unstable - and install 100-200 mB of updates every couple of
weeks - so I back up everything except /sys, /proc, and /tmp. I also keep
a copy of the partition table which is useful if/when I must do a
bare-metal restore onto a blank disk.

I assume you intend to use rsync to make a mirror copy of certain files and
then update that copy periodically to keep it current. rsync is very
speedy at this (after the initial copy is made), so including more files in
the save set doesn't have a big impact on runtime.

Bear in mind that each successive backup will overwrite any "old stuff".
That is usually OK ... unless an updated file happens to be corrupted.
Have a look at rdiff-backup, which uses the rsync library. It maintains an
up-to-date copy of each file and in addition generates reverse-diff files
that allow regeneration of earlier versions of your file(s). The ability
to retrieve an old version of some file can be very valuable!

From: General Schvantzkopf on
On Tue, 06 May 2008 19:10:02 +0000, Matthew Lincoln wrote:

> I want to backup my Linux system (with rsync). What is recommended to
> backup and what not?
>
> Of cause, all the personal stuff should be saved but what about the
> "normal" system stuff of the OS?
>
> Which of the files, dirs and settings should be backuped?
>
> And the same question on what NOT to backup? Is there more to exclude
> than /proc?
>
> Matthew

Restoring the OS is trivial so I don't back it up, I just backup my user
data. I do have a custom /etc/hosts file but it exists on all of my boxes
so I can easily restore it from one of the other systems.
From: Maurice Batey on
On Tue, 06 May 2008 19:10:02 +0000, Matthew Lincoln wrote:

> I want to backup my Linux system (with rsync).

That's what I use. I rsync the whole /home and / partitions
onto partitions on an external USB2 drive.

Takes 4 mins for /, and 6 mins for /home (the latter including
a 10GB VirtualBox virtual drive).

--
/\/\aurice
Linux Mandriva 2.6.22.18-desktop-1mdv 2008.0 PP
KDE 3.5.7 32-bit
(Remove 'removethis.' to reply by email)

From: Chris Mattern on
On 2008-05-07, Teo <matteo.corti(a)gmail.com> wrote:
> On May 7, 1:42 pm, Adam Funk <a24...(a)ducksburg.com> wrote:
>> On 2008-05-06, Matthew Lincoln wrote:
>>
>> > I want to backup my Linux system (with rsync).
>> > What is recommended to backup and what not?
>>
>> > Of cause, all the personal stuff should be saved but what about the "normal" system
>> > stuff of the OS?
>>
>> > Which of the files, dirs and settings should be backuped?
>>
>> Definitely /etc, or at least the bits of it that you've customized.
>
> And much more. Here some examples from a RedHat box:
> * /usr/local if you installed something manually from source.
> * /var/log
> * /var/lib examples:
> * /var/lib/imap and /var/spool/imap if you have an imap server
> * /var/lib/mailman if you are using mailman
> * /var/lib/mysql databases
> * /var/www
> I would suggest you to backup everything (excluding temporary stuff
> like /tmp) or to be very careful.
>
I agree. Storage is cheap, back it all up. Greatly simplifies recreating
the system, should you need to.

--
Christopher Mattern

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