Re: [newb] move /home to subvolume

[Neal Becker <ndbecker2@gmail.com>]

So I think what I need to do is:

1. boot off some rescue media
2. mount the target btrfs volume (e.g., /mnt/sysimage/root)
3. mv exising home (mv /mnt/sysimage/home /mnt/sysimage/oldhome)
4. create new subvolume (btrfs subvolume create /mnt/sysimage/home)
5. move all the files from /mnt/sysimage/oldhome /mnt/sysimage/home - not 
sure easiest way to do this step
6. edit /mnt/sysimage/etc/fstab to mount new /home

I have another machine, setup more or less this way:
UUID=7246327b-1905-4fe2-9b6b-b9376017264f /                       btrfs   
subvolid=5,subvol=root00 0 0
UUID=2c04be93-34c1-4016-ba41-60fd9fd90616 /boot                   ext4    
defaults        1 2
UUID=7246327b-1905-4fe2-9b6b-b9376017264f /home                   btrfs   
subvol=home     0 0



Vytautas D wrote:

> as far as I know, you can't do this, you need to temporary move /home
> somewhere else, create /home subvolume and copy everything back.
> 
> -
> Vytas
> 
> On Mon, Jun 1, 2015 at 1:36 PM, Neal Becker <ndbecker2@gmail.com> wrote:
>> I have everything under /:
>>
>> sudo btrfs subvolume list /
>> ID 257 gen 65795 top level 5 path root
>>
>> I want to move /home onto it's own subvolume.  I hope I can do this while
>> the root device is mounted.
>>
>> What is the procedure?
>>
>> I tried first to create a subvolume for /home at the top-level, but
>> couldn't figure out the syntax:
>>
>> [nbecker@nbecker2 ~]$ sudo btrfs subvolume create /home
>> [sudo] password for nbecker:
>> ERROR: '/home' exists
>>
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