-
Title
Linux - Virtual Export - Virtualbox guest machine fails to boot, if it has 9 or more hard drives on one disk controller and '/' or '/boot' reside inside an LVG -
Description
When trying to boot a VirtualBox exported Linux machine, that has 9 or more disks attached to one disk controller and either the '/' partition or the '/boot' partition reside inside of a LVG (Logical Volume Group), then the boot up of this Linux guest machine will fail.
-
Cause
The issue is caused by the limitation in the disk controller LSI SAS, which only supports a maximum of 8 disks attached to the controller. Therefore, if you are exporting a machine with 10 disks, 8 disks would fill up the LSI SAS controller and then the 9th and 10th disks would be placed on the LSI SCSI controller.
Because the 9th and 10th disks have a separate Major and Minor device numbers, the LVM(Logical Volume Manager) will not be able to recognize the disks as part of the LVG.
-
Resolution
To resolve this issue, please use less than 9 disks on one disk controller. This will allow the export to be created with all disks on one single disk controller and the machine will boot up successfully after export. -
Defect ID
D-31277