[arch-general] BTRFS, a good choice for /?

[C Anthony Risinger]

On Mon, Sep 27, 2010 at 1:47 AM, Christoph Rissner <c.r at visotech.at> wrote:
> On 09/24/2010 03:22 PM, Nilesh Govindarajan wrote:
>>
>> It seems btrfs is really worth a try after so many positive feedbacks.
>> Any ideas how can I format / with latest btrfs? I've the archiso on my
>> pen drive which was released months ago, I guess it doesn't have the
>> latest btrfs-progs?
>> What's the method then? Create a PenArch?
>>
>
> I just installed the btrfs-progs-git from AUR and followed the steps from
> https://btrfs.wiki.kernel.org/index.php/Conversion_from_Ext3.
>
> This, of course, works only if you currently have ext3/4 on /.

just heads up; if you want to try the rollback stuff in
mkinitcpio-btrfs (AUR), then your system _must_ live inside a
subvolume (specifically... __active).

the hook will do the appropriate things to prepare your system, but it
will leave a "phantom" copy of the current system "under" your / that
must be removed manually, AFAIK it can only be removed via `rm -rf`.

way around is to get a copy of btrfs-progs during install and prep the disk.

hook explains all this when booting for the first time using it.  when
i get some motivation to work on it, kernel rollbacks will be
supported; hook needs some love to take advantage of newer btrfs
features :-/, but it works just fine.

C Anthony