OK, I wanted to replace the 500G disks in a Dell T20 server with new 2TB
disks. The machine has 4 SATA ports, one used for the optical disk and three
for the hard drives. It is set up with /dev/sda and /dev/sdb with each three
partitions:
1 -- VFAT (for EFI)
2 -- ext4 (for /boot)
3 -- LVM
/dev/sda2 and /dev/sdb2 are a mirror raid (/dev/md0)
/dev/sda3 and /dev/sdb3 are a mirror raid (/dev/md1), with LVM on top of that.
/dev/sdc is a disk containing one file system and mostly used by AMANDA for
backup (it has a "virtual" tape changer).
This morning I shut the machine down and pulled [the 500G] /dev/sdb and
installed a new 2TB disk as a new /dev/sdb. Partitioned it (with parted) to be
much like /dev/sda (except partition 3 is way bigger). I added the new
/dev/sdb2 to /dev/sda2 (boot raid set) and dd'ed /dev/sda1 to /dev/sdb1. I
then created a new RAID set (degraded) with /dev/sdb3, used pvcreate on it,
used vgextend to add it to the system volume group, then used pvmove to move
the extents from the old disk to the new disk. Meanwhile I partitioned a
second 2TB disk using a USB SATA dock and copied the old 500G /dev/sdc1 to the
new 2TB disk. So far so good.
Then I shut the machine down, swapped in the new backup [2TB] disk and pulled
the old system [500G] disk and installed the third new [2TB] disk. The system
won't boot that way. It seems there is something in the UEFI (secure boot)
logic that wants the original disk, even if everything is moved over.
I ended up putting the original /dev/sda in. The machine boots and is using
the new system disk (a raid array in degraded mode).
What is the magic to fix this?
I tried to run efibootmgr, but it wants a model named efivars loaded, but
there is no such module available.
What am I missing?
--
Robert Heller -- 978-544-6933
Deepwoods Software -- Custom Software Services
http://www.deepsoft.com/ -- Linux Administration Services
heller@xxxxxxxxxxxx -- Webhosting Services
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