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Thread: Systemd /usr on sles12 is working question

  1. Systemd /usr on sles12 is working question

    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...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

  2. Re: Systemd /usr on sles12 is working question

    Hi
    If your using btrfs, then for snapshots to work it needs to be;
    https://www.suse.com/releasenotes/x86_64/SUSE-SLES/12/ see 2.1.6 Rollback with Snapper on Btrfs.
    Cheers Malcolm °¿° SUSE Knowledge Partner (Linux Counter #276890)
    SUSE SLE, openSUSE Leap/Tumbleweed (x86_64) | GNOME DE
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  3. Re: Systemd /usr on sles12 is working question

    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 Originally Posted by malcolmlewis View Post
    Hi
    If your using btrfs, then for snapshots to work it needs to be;
    https://www.suse.com/releasenotes/x86_64/SUSE-SLES/12/ see 2.1.6 Rollback with Snapper on Btrfs.

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