After upgrading the kernel package, my Centos 7 server didn't boot.
Here is a small summary:
old kernel = kernel-3.10.0-123.4.4.el7.x86_64 (everything just fine)
new kernel = kernel-3.10.0-123.6.3.el7.x86_64
root partition is on a primary partition, NOT on a LVM volume
/var partition is on a LVM volume
new kernel's boot problem = systemd cannot mount /var partition saying
requirements failed or something like that
I have find out that the new kernel's initramfs image does not contain the lvm
module while the old kernel's initramfs did.
I have created a new initramfs with lvm using dracut and could boot the server
successfully. However I do not consider this as a fix, and don't know how to
find the primary cause of the problem. I need some help finding out who's to
blame:
Is the lvm module really missing? AFAIK the initramfs exists for one purpose
only and that is to mount the root partition. All kernel modules are on this
partition and once it is mounted, the kernel can access all hardware it
supports - LVM included, of course. The fact is the root partition WAS mounted
successfully before the boot process failed and the lvm module is NOT needed
for this task. Initramfs did its job fine, didn't it?
If that's true and the lvm module is NOT missing in the initramfs, is the boot
problem systemd related? Has it failed to activate the LVM? Why?
Any help would be appreciated.
_______________________________________________
CentOS mailing list
CentOS@xxxxxxxxxx
http://lists.centos.org/mailman/listinfo/centos
