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List:       centos-virt
Subject:    Re: [CentOS-virt] 3.18.21-16 upgrade, kernel panic, unable to mount root fs
From:       PJ Welsh <pjwelsh () gmail ! com>
Date:       2015-11-02 17:31:27
Message-ID: CAMGrxtF2pHNy=uey=7knh5t4U6nBoRegNuwUU1P=AnU-T7Wy_A () mail ! gmail ! com
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This caused me an overnight issue on a secondary Xen server. I'm glad to
not be the only one to have the issue :)
I'm even more glad someone spotted the issue quickly. Thank you!

pjwelsh

On Sun, Nov 1, 2015 at 4:27 PM, Karel Hendrych <k+centosvirt@karlos.cz>
wrote:

> Indeed, a good catch. Module initramfs line was missing at 3.18.21 grub
> config.
>
> Thanks!
> --
> Karel
>
>
> On 1.11.2015 21:46, Sarah Newman wrote:
>
>> On 11/01/2015 12:07 PM, Karel Hendrych wrote:
>>
>>> Hi, just a heads-up: 3.18.21 didn't boot up on HP ML310e Gen8 v2, SATA
>>> drives in AHCI mode, / on software raid 1, no LVM. It ended up in kernel
>>> panic
>>> with unable to mount root fs. Attached. No difference in grub kernel/xen
>>> settings.
>>>
>>> I didn't investigate the things deeper so far. 4.4.3-3/3.18.17 is
>>> booting fine.
>>>
>>> Any similar experience?
>>>
>>
>> Check the module line for the initramfs is present in grub.conf. It's
>> gone missing in all our recent upgrades, but I wasn't sure if it was an
>> upstream
>> problem or our own.
>>
>> _______________________________________________
>> CentOS-virt mailing list
>> CentOS-virt@centos.org
>> https://lists.centos.org/mailman/listinfo/centos-virt
>>
>> _______________________________________________
> CentOS-virt mailing list
> CentOS-virt@centos.org
> https://lists.centos.org/mailman/listinfo/centos-virt
>

[Attachment #5 (text/html)]

<div dir="ltr">This caused me an overnight issue on a secondary Xen server. I&#39;m \
glad to not be the only one to have the issue :)<div>I&#39;m even more glad someone \
spotted the issue quickly. Thank \
you!</div><div><br></div><div>pjwelsh</div></div><div class="gmail_extra"><br><div \
class="gmail_quote">On Sun, Nov 1, 2015 at 4:27 PM, Karel Hendrych <span \
dir="ltr">&lt;<a href="mailto:k+centosvirt@karlos.cz" \
target="_blank">k+centosvirt@karlos.cz</a>&gt;</span> wrote:<br><blockquote \
class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc \
solid;padding-left:1ex">Indeed, a good catch. Module initramfs line was missing at \
3.18.21 grub config.<br> <br>
Thanks!<br>
--<br>
Karel<div class="HOEnZb"><div class="h5"><br>
<br>
On 1.11.2015 21:46, Sarah Newman wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc \
solid;padding-left:1ex"> On 11/01/2015 12:07 PM, Karel Hendrych wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc \
solid;padding-left:1ex"> Hi, just a heads-up: 3.18.21 didn&#39;t boot up on HP ML310e \
Gen8 v2, SATA drives in AHCI mode, / on software raid 1, no LVM. It ended up in \
kernel panic<br> with unable to mount root fs. Attached. No difference in grub \
kernel/xen settings.<br> <br>
I didn&#39;t investigate the things deeper so far. 4.4.3-3/3.18.17 is booting \
fine.<br> <br>
Any similar experience?<br>
</blockquote>
<br>
Check the module line for the initramfs is present in grub.conf. It&#39;s gone \
missing in all our recent upgrades, but I wasn&#39;t sure if it was an upstream<br> \
problem or our own.<br> <br>
_______________________________________________<br>
CentOS-virt mailing list<br>
<a href="mailto:CentOS-virt@centos.org" \
target="_blank">CentOS-virt@centos.org</a><br> <a \
href="https://lists.centos.org/mailman/listinfo/centos-virt" rel="noreferrer" \
target="_blank">https://lists.centos.org/mailman/listinfo/centos-virt</a><br> <br>
</blockquote>
_______________________________________________<br>
CentOS-virt mailing list<br>
<a href="mailto:CentOS-virt@centos.org" \
target="_blank">CentOS-virt@centos.org</a><br> <a \
href="https://lists.centos.org/mailman/listinfo/centos-virt" rel="noreferrer" \
target="_blank">https://lists.centos.org/mailman/listinfo/centos-virt</a><br> \
</div></div></blockquote></div><br></div>



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