On 08/23/12 15:01, Jobst Schmalenbach wrote:
Hi Adrian
Hi!
yes this will do. Because I do not know (yet) the UUID of the new partitions (drives), if I specify the UUID for the known drives for the partitions the kernel will assign the new drives to higher sdx?
AFAIK the sdX names are given by the bios so this is why when new hardware is addend and/or something is change hardware-wise the sdX nomenclature is changed. If you decide to use UUID nomenclature you should use it for ALL disks/partitions .. for centos that menas the beside fstab to modify grub to have something like root=UUID= in kernel command line from grub. IMHO the easiest way to change all to UUID is to boot a live-cd find out all UUIDs and modify the fstab and grub accordingly. I dont know about root(hd0,0) .. i have the grub and / installed on an disk which by system is recognized as /dev/sdc and in grub.conf i have hd(2,msdos1)
HTH, Adrian
Is this correct?
thanks Jobst
On Thu, Aug 23, 2012 at 12:49:38PM +0300, Adrian Sevcenco (Adrian.Sevcenco@cern.ch) wrote:
On 08/23/12 12:13, Jobst Schmalenbach wrote:
Is there a way to tell the kernel in which order to load the drives and assign the drive order in a way that the new drives are assigned SDC and SDD and the old drives get SDA and SDB?
use UUID= in fstab (lsblk -o NAME,KNAME,UUID) and you will get rid of all this headaches (if you have software raid the assembling is done internally based on UUID so you don't have to worry about mdraid)
HTH, Adrian
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