Bug#782793: systemd: ext4 filesystem on lvm on raid causes boot to enter emergency shell

[Rick Thomas]

On Apr 23, 2015, at 1:29 AM, Michael Biebl <biebl at debian.org> wrote:

> Can you boot with systemd.log_level=debug on the kernel command line and
> attach the journal output of this boot, so we have more information out
> the timing, i.e. when certain services are started
> 
> There might be a race somewhere, i.e. lvm2-activation(-early).service
> being run *before* mdadm has assembled the RAID.
> 
> You could test this theory, be artifically delaying those two services.
> Copy them to /etc/systemd/system, and add a ExecStartPre=/bin/sleep 30
> to the [Service] section of those two units.
> 
> Michael

OK, here’s the log…  Hope it helps!

Interestingly, one time (just once! out of several tries) it booted fine — so it pretty clearly *is* a race condition!

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