btrfs plans for 15.10/16.04?
Dimitri John Ledkov
xnox at ubuntu.com
Wed Apr 22 01:23:44 UTC 2015
On 21 Apr 2015 2:07 pm, "Martinx - ジェームズ" <thiagocmartinsc at gmail.com> wrote:
> On 21 April 2015 at 16:36, Bryan Quigley <bryan.quigley at canonical.com>
>> Hi there,
>> I'm just wondering if there are any plans to revisit btrfs as the
default filesystem before the next LTS?
So on Suse, btrfs is used for rootfs but not user storage (e.g. /home is on
xfs). I see that attractive, as /usr is mostly read-only and only updated
with controlled tools.
>> Some key drivers I see are:
>> - If we want our app/snappy story to converge with systemds 
>> - LXC is even awesomer on btrfs (fast copies)
>> AFAICT the last time this was condired was in the 12.10/13.04 timeframe
> Hey guys!
> Let me ask something here...
> Does Canonical / Ubuntu have plans to kick apt/dpkg in favor of some kind
of "systemd install my-package"?
That's not inline with systemd upstream. It only has support for offline
updates with reboot. (See needs update conditions etc.)
However see snappy / click and system image updates.
> About BTRFS, it still can not be used to host KVM QCow2 images, neither
"/var/lib/mysql" directories... Since it lacks support for DIRECT_IO.
Setting the flag to disable copy on write is available however.
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