Comment 15 for bug 1729145

So, /dev/bcache/by-uuid is not getting created.

That's the same kernel bug I filed.

And, if they were, I think they'd get moved properly.

init-bottom/udev script does the following:

# Stop udevd, we'll miss a few events while we run init, but we catch up
udevadm control --exit

# move the /dev tmpfs to the rootfs
mount -n -o move /dev ${rootmnt}/dev

That "move" operation migrates the entire mounted directory to a new
location
so, if /dev/bcache/by-uuid existed, it would be present when systemd init
runs.

AFAICT, there's not fix here without the kernel side.

On Thu, Nov 30, 2017 at 10:09 AM, Dmitrii Shcherbakov <
<email address hidden>> wrote:

> Just in case also checked with this rule that creates links at /dev
> /dev/disk/by-uuid /dev/bcache/by-uuid https://paste.ubuntu.com/26081756/
>
> They are all there originally (see the screenshot).
>
> But not there afterwards. So it's not just a problem with a different
> path.
>
> https://paste.ubuntu.com/26081775/
>
> ubuntu@maas-xenial4:~$ tree /dev/ | grep bcache
> ├── bcache0
> ├── bcache1
> ├── bcache2
> ├── bcache3
> │ ├── 251:0 -> ../bcache0
> │ ├── 251:1 -> ../bcache1
> │ ├── 251:2 -> ../bcache2
> │ ├── 251:3 -> ../bcache3
> │ │ ├── bcache0 -> ../../bcache0
> │ │ ├── bcache1 -> ../../bcache1
> │ │ ├── bcache2 -> ../../bcache2
> │ │ ├── bcache3 -> ../../bcache3
>
>
> ** Attachment added: "bcache-multiple-links.png"
> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/
> 1729145/+attachment/5016592/+files/bcache-multiple-links.png
>
> --
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> report.
> https://bugs.launchpad.net/bugs/1729145
>
> Title:
> /dev/bcache/by-uuid links not created after reboot
>
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