[SOLVED] rsync backup exclude directory discussion - from running OS on ext4 journaling part
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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.
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)
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)
Distribution: Debian Wheezy/Jessie/Sid, Linux Mint DE
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.