Re: filesystems and year 2038

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On Wed, Apr 6, 2022 at 5:52 PM Eric Sandeen <sandeen@xxxxxxxxxx> wrote:
>
> On 4/4/22 2:51 PM, Justin Forbes wrote:
> > On Mon, Apr 4, 2022 at 11:47 AM Colin Walters <walters@xxxxxxxxxx> wrote:
> >>
> >> Hi, creating a thread on this from:
> >> https://github.com/coreos/fedora-coreos-config/pull/1650
> >>
> >> Basically I'd propose that not just our default images have y2038-compatible filesystem setups, we ensure that if e.g. XFS is explicitly chosen for a Workstation installation then it is set up with bigtime=1.
> >>
> >> (Note btrfs uses 64 bit time today, so I think this is mostly about ext4 and xfs, but perhaps we also need to look at the longer tail too, e.g. squashfs.  OTOH, because squashfs is read-only we can just worry about that closer to 10 years from now...)
> >>
> >> If no one objects I guess I can look at re-learning Mediawiki syntax again and writing a Change.
> >
> > Or, you could ignore it and it will happen anyway:
> >
> > xfsprogs-5.15.0-rc1 (11 Mar 2022)
> > - mkfs: enable inobtcount and bigtime by default (Darrick J. Wong)
>
> *nod*
>
> I just pushed xfsprogs-5.15.0 out today and it'll be built in rawhide shortly.
> If we need this in released Fedoras I'm happy to push 5.15.0 to older
> releases as well.
>
> As for ext4, it might be wise to raise the small-filesystem issue on the
> ext4 list.
>
> OTOH, the ext4 "small" threshold is 512MB so another option might be to
> just be sure to size /boot to at least 512mb to get Y2038-happy inodes.
>
>         else if (fs_blocks_count < 512 * meg)
>                 size_type = "small";
>

Anaconda already creates a one gigabyte ext4 /boot partition by
default for all Fedora variants except Server, where it uses xfs
instead.



-- 
真実はいつも一つ!/ Always, there's only one truth!
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