partitioning new machine

[birger]

With btrfs you create subvolumes within the same master volume.
The default is to have separate subvolumes for / and /home.

When doing a new install you can create a new / with a new subvolume
name within the same btrfs file system. rootfs-22 instead of just
root for example. That way you can mount your old / as a subdirectory
while moving over all your config to the new /, and you can keep
the same /home. When you are done, delete the old / subvolume
and you get your space back without any repartitioning.

look at the subvol=XXX in /etc/fstab

If you want to back up and restore individual subvolumes, look at the
btrfs send and btrfs receive commands.



on., 06.05.2015 kl. 09.08 -0400, skrev Neal Becker:
> Actually, re-partioning old machine.
> 
> Last time, I setup 1 big 1TB btrfs partition.  I'd like to do a re
> -install 
> for f22, and I'm wishing now I had my home on it's own partition - 
> since now 
> I need to backup and restore my home (about 165GB).
> 
> Or perhaps there is another way?  shrink the 1TB btrfs partition, 
> create a 
> new one for /home, and copy?  How could I do that, and could I do it 
> online, 
> or only from some rescue USB? (/home is on the same single partition 
> as /). 
> 
> -- 
> Those who fail to understand recursion are doomed to repeat it
>