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.

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