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 at centos.org > https://lists.centos.org/mailman/listinfo/centos-virt >