[systemd-devel] [PATCH] fstab-generator: introduce rd.weak_sysroot to bypass failures in sysroot.mount

[Tom Gundersen]

On Tue, Jul 30, 2013 at 2:27 PM, WANG Chao <chaowang at redhat.com> wrote:
> On 07/30/13 at 02:05pm, Tom Gundersen wrote:
>> On Tue, Jul 30, 2013 at 1:53 PM, WANG Chao <chaowang at redhat.com> wrote:
>> >  - It's not before initrd-root-fs.target.
> In case of kdump, 2nd kernel initrd is used to mount non-root local/remote
> filesystem and dump vmcore there. The kdump script is running right
> before switch-root and will reboot after saving vmcore.
>
> So mounting sysroot isn't quite justified in this case.  But it's still
> acceptable (since it's readonly mount), as long as it's not keeping
> systemd from reaching initrd.target (so kdump script can run later).

If you don't have the Before=initrd-root-fs.target it means that
you'll have a race: sometimes the rootfs will be mounted  before kdump
does whatever it does, and sometimes it won't. Would an option be to
not specify a root= at all in your case?