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masuch 03-05-2012 03:53 PM

rsync backup exclude directory discussion - from running OS on ext4 journaling part

I would like to ask for propositions, recomendations which directory should be excluded if I am doing backup of the whole current running OS system by rsync on ext4 partition.

my current rsync backup script has following conformation:

rm -rf /home/${USER}/.local/share/Trash/info/*
rm -rf /home/${USER}/.local/share/Trash/files/*
sudo apt-get clean
sudo apt-get autoclean
time sudo rsync -a --force --hard-links --xattrs --sparse --numeric-ids --delete --delete-excluded --delete-after --progress
/ ${_destination}
--log-file=${_destination}--`date +%Y%m%d--%H-%M-%S`.log

Thank you for any recommendations ,suggestions.

P.S. I understand that it depends on installed applications but let's pretend that I have them installed :-)

weibullguy 03-06-2012 09:42 AM

This is the script I use to backup my $HOME directory. Rather than passing a long list of --exclude='s, I keep a file with a list of things to include and exclude. I back up to another machine in my basement running rsync as a server using cron. I think the list of files/directories is easier to manage than a grunch of --exclude='s.

masuch 03-06-2012 06:41 PM

Thanks a lot !

It is quite a lot of directories. Had/has to take systematic work.
(If you have some spare time you could please to share this exclude/include file (for example by dropbox) on internet to have its always fresh for public)


weibullguy 03-07-2012 08:05 AM

Not sure how helpful my include/exclude file will be for anyone else, but here it is.

masuch 03-08-2012 07:36 AM

I am using exclude directories to clean up linux operating system/s as well.
For backup by tar xz's files reduced from 30 Gbytes to 17 Gbytes.
For backup/chroot by rsync reduced about 20 Gbytes.

rng 03-08-2012 09:04 AM

What will be the commands to restore the system? Can the system be run at the distination drive?

masuch 03-08-2012 10:51 AM

I made clone by rsync of the whole / directory (excluding unnecessary dirs) to another ext4 partition.
Made some changes in /etc/hosts,hostname,fstab,gtags/htmake.conf and maybe some another config files and update-grub,
if update-grub did not succed put it in 40_custom file manually and that was all I did and it works. I used this clone of ubuntu OS just three times but without problems for now :-)
(what I have problem is use it on gpt(uefi) hard-disk/partition/s. Need more study how to properly install grub2 to avoid C/H/S error messages - it still does not work even manually created menuentry for grub2 config/s)

jlinkels 03-08-2012 03:07 PM

Why do so complicated? You are right that this is very clean, but if you omit the excludes, a few gigs more might be backed up. I don't worry about it, it is much more difficult to be sure that not too much s excluded.

These really have to be excluded:

If you want to restore your system, you should not exclude /dev!

If you want to clone, it might be a good idea to exclude some udev rules, like persistent_net_rules if your system has that. When you don't, usually the new system reserves eth0 or eth1 for the NIC in the other system and tries to make eth2 work.


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