# Systemd /usr on sles12 is working question

**URL:** <https://forums.suse.com/t/systemd-usr-on-sles12-is-working-question/26276>\
**Category:** SLES Configure-Administer\
**Created:** [October 29, 2014, 10:38pm UTC](https://forums.suse.com/t/systemd-usr-on-sles12-is-working-question/26276 "2014-10-29T22:38:26Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![heinkonijn](https://avatars.discourse-cdn.com/v4/letter/h/b77776/32.png) [@heinkonijn](https://forums.suse.com/u/heinkonijn)\
**Post date:** [October 29, 2014, 10:38pm UTC](https://forums.suse.com/t/systemd-usr-on-sles12-is-working-question/26276/1 "2014-10-29T22:38:26Z")

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Hi,

I have a question regarding the migration from initd to systemd and a /usr volume.  
When RHEL and Ubuntu moved from initd to systemd they required that /usr be part of the / or the system wouldn’t boot.  
This seems the way systemd was meant to function, see e.g.:  
[http://freedesktop.org/wiki/Software/systemd/separate-usr-is-broken/](http://freedesktop.org/wiki/Software/systemd/separate-usr-is-broken/)

I know that a RHEL server with a separate /usr volume is not supported even if you get it to work.

I installed a SLES12 server yesterday and made a separate /usr (in an LVM volume group) and the server boots fine.

So, my question is, why 🙂  
What is the diff between RHEL/Ubuntu and SLES? Is it possible this could cause issues in the future?

Cheers,  
Hein

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**Author:** ![malcolmlewis](https://sea2.discourse-cdn.com/flex022/user_avatar/forums.suse.com/malcolmlewis/32/11375_2.png) [@malcolmlewis](https://forums.suse.com/u/malcolmlewis)\
**Post date:** [October 29, 2014, 11:55pm UTC](https://forums.suse.com/t/systemd-usr-on-sles12-is-working-question/26276/2 "2014-10-29T23:55:50Z")

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Hi  
If your using btrfs, then for snapshots to work it needs to be;  
[https://www.suse.com/releasenotes/x86\_64/SUSE-SLES/12/](https://www.suse.com/releasenotes/x86_64/SUSE-SLES/12/) see 2.1.6 Rollback with Snapper on Btrfs.

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**Author:** ![heinkonijn](https://avatars.discourse-cdn.com/v4/letter/h/b77776/32.png) [@heinkonijn](https://forums.suse.com/u/heinkonijn)\
**Post date:** [October 30, 2014, 1:15am UTC](https://forums.suse.com/t/systemd-usr-on-sles12-is-working-question/26276/3 "2014-10-30T01:15:39Z")

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Hi,

OK, thanks for that. I am using ext4.  
But the default filesystem for RHEL7 is XFS, I don’t even think RHEL7 officially support btrfs, only as technology preview.

Cheers,  
Hein

[QUOTE=malcolmlewis;24486]Hi  
If your using btrfs, then for snapshots to work it needs to be;  
[https://www.suse.com/releasenotes/x86\_64/SUSE-SLES/12/](https://www.suse.com/releasenotes/x86_64/SUSE-SLES/12/) see 2.1.6 Rollback with Snapper on Btrfs.[/QUOTE]