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From: Patrick Dung <mpatdung@gmail.com>
Date: Tue, 8 May 2018 13:26:56 +0800
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Subject: [linux-lvm] LVM not activated on boot in linux mdraid (Fedora 28)
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Hello.

I have upgraded a host to Fedora 28. Using the new dracut to rebuilt
initramfs, new kernel and old kernel would fail to boot. If I use the old
kernel without touching the initramfs, it would boot.
I tried downgrading to old dracut and the problem persist.

The boot problem is that I can see my RAID but it failed to activate the
root (/) LVM on the mdraid.

It had error message like this in dracut shell:

+ lvm pvdisplay
  WARNING: PV mphetV-LMWe-se6x-86Bv-osHk-rVk2-K01UNk on /dev/sdb2 was
already found on /dev/sda2.
  WARNING: PV mphetV-LMWe-se6x-86Bv-osHk-rVk2-K01UNk on /dev/md126 was
already found on /dev/sda2.
  WARNING: PV mphetV-LMWe-se6x-86Bv-osHk-rVk2-K01UNk prefers device
/dev/sda2 because device was seen first.
  WARNING: PV mphetV-LMWe-se6x-86Bv-osHk-rVk2-K01UNk prefers device
/dev/md126 because device size is correct.

I had opened a bug in Fedora bugzilla, it had all the details:
https://bugzilla.redhat.com/show_bug.cgi?id=1575762

Thanks,
Patrick

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<div dir=3D"ltr"><div><div><div><div><div><div>Hello.<br><br></div>I have u=
pgraded a host to Fedora 28. Using the new dracut to rebuilt initramfs, new=
 kernel and old kernel would fail to boot. If I use the old kernel without =
touching the initramfs, it would boot.<br></div>I tried downgrading to old =
dracut and the problem persist.<br><br></div><div>The boot problem is that =
I can see my RAID but it failed to activate the root (/) LVM on the mdraid.=
<br></div><div><br></div>It had error message like this in dracut shell:<br=
><br>+ lvm pvdisplay<br>=C2=A0 WARNING: PV mphetV-LMWe-se6x-86Bv-osHk-rVk2-=
K01UNk on /dev/sdb2 was already found on /dev/sda2.<br>=C2=A0 WARNING: PV m=
phetV-LMWe-se6x-86Bv-osHk-rVk2-K01UNk on /dev/md126 was already found on /d=
ev/sda2.<br>=C2=A0 WARNING: PV mphetV-LMWe-se6x-86Bv-osHk-rVk2-K01UNk prefe=
rs device /dev/sda2 because device was seen first.<br>=C2=A0 WARNING: PV mp=
hetV-LMWe-se6x-86Bv-osHk-rVk2-K01UNk prefers device /dev/md126 because devi=
ce size is correct.<br><br></div>I had opened a bug in Fedora bugzilla, it =
had all the details:<br><a href=3D"https://bugzilla.redhat.com/show_bug.cgi=
?id=3D1575762">https://bugzilla.redhat.com/show_bug.cgi?id=3D1575762</a><br=
><br></div>Thanks,<br></div>Patrick<br></div>

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