[linux-lvm] Kernel PANIC after partition change on RedHat 8.0

[Steven Lembark]

> I have installed Red Hat Linux 8.0. I've made volume group (rootvg)
> from /dev/md1 (which is raid1). I've put my /boot on /dev/md0.
>
> As you already have noticed - I have two disks.
> After installation I'm making new partiotion /dev/sdb5 i.e.
> And if I change its to type to 8e after reboot kernel panics.
> If I change type of this partition to something different - the system
> boots fine.
>
> I cannot understand where can be the problem.
> I have to say that I made the same configuration on this machine and
> everything was ok. But now I cannot see any difference.

sdb5 => sub-partition. Are you accidentally carving out
a piece of an existing PV? For example, if you had partitioned
the disk into /dev/sdb[1234] when it was built with sdb4 taking
up most of the device as 8e (i.e., for LVM), then adding sdb5
w/in the area of sdb4 would certianly break things -- and scramble
your LV's during pvcreate on the new partition.


--
Steven Lembark                               2930 W. Palmer
Workhorse Computing                       Chicago, IL 60647
                                            +1 773 252 1080