[ovirt-users] Partition Trouble on oVirt Node

Andy Michielsen andy.michielsen at gmail.com
Fri Feb 16 05:59:28 UTC 2018

Hello Matt,

Can you perform the command cat /etc/fstab and see what partitions you already created during installation ?

Did you leave the installation to decide what to do with partitioning by itself or did you did that yourself ?

Kind regards.

> On 16 Feb 2018, at 00:23, Matt Simonsen <matt at khoza.com> wrote:
> Hello all,
> This may not be oVirt specific (but it may be) so thank you in advance for any assistance.
> I have a system installed with oVirt Node Next 4.1.9 that was installed to /dev/sda
> I had a seperate RAID Volume /dev/sdb that should not have been used, but now that the operating system is loaded I'm struggling to get the device partitioned.
> I've tried mkfs.ext4 on the device and also pvcreate, with the errors below. I've also rebooted a couple times and tried to disable multipathd.   Is multipathd even safe to disable on Node Next?
> Below are the errors I've received, and thank you again for any tips.
> [root at node1-g6-h3 ~]# mkfs.ext4 /dev/sdb
> mke2fs 1.42.9 (28-Dec-2013)
> /dev/sdb is entire device, not just one partition!
> Proceed anyway? (y,n) y
> /dev/sdb is apparently in use by the system; will not make a filesystem here!
> [root at node1-g6-h3 ~]# gdisk
> GPT fdisk (gdisk) version 0.8.6
> Type device filename, or press <Enter> to exit: /dev/sdb
> Caution: invalid main GPT header, but valid backup; regenerating main header
> from backup!
> Caution! After loading partitions, the CRC doesn't check out!
> Warning! Main partition table CRC mismatch! Loaded backup partition table
> instead of main partition table!
> Warning! One or more CRCs don't match. You should repair the disk!
> Partition table scan:
>   MBR: not present
>   BSD: not present
>   APM: not present
>   GPT: damaged
> Found invalid MBR and corrupt GPT. What do you want to do? (Using the
> GPT MAY permit recovery of GPT data.)
>  1 - Use current GPT
>  2 - Create blank GPT
> Your answer: 2
> Command (? for help): n
> Partition number (1-128, default 1):
> First sector (34-16952264590, default = 2048) or {+-}size{KMGTP}:
> Last sector (2048-16952264590, default = 16952264590) or {+-}size{KMGTP}:
> Current type is 'Linux filesystem'
> Hex code or GUID (L to show codes, Enter = 8300): 8e00
> Changed type of partition to 'Linux LVM'
> Command (? for help): w
> Final checks complete. About to write GPT data. THIS WILL OVERWRITE EXISTING
> Do you want to proceed? (Y/N): y
> OK; writing new GUID partition table (GPT) to /dev/sdb.
> The operation has completed successfully.
> [root at node1-g6-h3 ~]# pvcreate /dev/sdb1
>   Device /dev/sdb1 not found (or ignored by filtering).
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