Hi Ludo,
I'll try building again later (could be a while, Ceph takes a really
long time to build), but I highly doubt that that's the case.
Btrfs subvolumes cannot be deleted with tools such as rm/rmdir, even as
root. You have to run 'btrfs subvolume delete /subvolume' as root.
Although a regular user may create subvolumes, they cannot delete it
(unless the USER_SUBVOL_RM_ALLOWED mount option is on).
Since the building is done as a guixbuilder user, I don't see how that
would work.
And even if it did, if a build failed for example you'd still be left
with a bunch of subvolumes in /tmp that can only be deleted as root.
On 2017-12-12 13:52, [email protected] wrote:
Hi Rutger,
Rutger Helling <[email protected]> skribis:
I was surprised to learn that Ceph creates Btrfs subvolumes during its
tests.
This is problematic because on Btrfs regular users can create
subvolumes, but they cannot delete them.
This means I had to manually delete the following subvolumes as root:
ID 1744 gen 819598 top level 257 path
tmp/guix-build-ceph-12.0.2.drv-0/td/t-7201/dev/osd0/current
ID 1745 gen 819598 top level 257 path
tmp/guix-build-ceph-12.0.2.drv-0/td/t-7201/dev/osd0/snap_1
Does that mean that wiping out /tmp/guix-build-ceph-*, as happens when
build finishes, isn't enough to get rid of those volumes?
Ludo'.
