Re: systemd.setenv and a mount.unit

[Goffredo Baroncelli <kreijack@inwind.it>]

On 2014-11-20 11:35, Jakob Schürz wrote:
> Am 2014-11-20 um 11:17 schrieb Goffredo Baroncelli:
[....]
>> 
>> rootflags=subvol=debian
>> 
>> so, the subvol=debian option is passed to mount. When
>> grub-mkconfig generates the grub menu entries, does so.
> 
> This I also have in my grub-config, and it works. But it doesn't
> solve the challenge. Mounting more subvolumes according to the
> root-subvolume... :-)
> 

Ah! You never told that this is your request.

I can only suggest that after snapshooting the "/",
you snapshot their subvolumes, placing these under
the root snapshoot itself:

Supposing to have the following four subvolumes

/root/
/root/etc
/root/usr
/root/var

When you need to snapshot, you should:

# btrfs subvolume snapshot /root /backup-root-20141120
# btrfs subvolume snapshot /root/etc /backup-root-20141120/etc
# btrfs subvolume snapshot /root/usr /backup-root-20141120/usr
# btrfs subvolume snapshot /root/var /backup-root-20141120/var

So in order to remount an "old" filesystem, you need to make only
1 mount.










> regards Jakob
> 
> -- To unsubscribe from this list: send the line "unsubscribe
> linux-btrfs" in the body of a message to majordomo@vger.kernel.org 
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> 


-- 
gpg @keyserver.linux.it: Goffredo Baroncelli <kreijackATinwind.it>
Key fingerprint BBF5 1610 0B64 DAC6 5F7D  17B2 0EDA 9B37 8B82 E0B5