I agree with the UUID stuff, I do not like them for the exact same reason. I do not understand why RedHat cannot include the partition into the UUID, e.g. dev-sda1-c05e-449a-837b-b2579b949d55 As for the first drive, when the kernel boots I think it assigns the drives in order of the controller on the system bus/slots. As the new controller sits lower in the slot system (i.e. closer to the CPUs) it is recognised first as I can see it appearing first in the order being initialized by the kernel. I cant move it below the old card as there is no slot that has the correct PCI-x8. I will try the LABEL way of doing .... I remember that was the same problem a few years back when one had multiple network interfaces .... until the MAC addresses where introduced into the ifcfg files. Jobst On Thu, Aug 23, 2012 at 09:40:24AM -0400, m.roth at 5-cent.us (m.roth at 5-cent.us) wrote: > Markus Falb wrote: > > On 23.8.2012 14:01, Jobst Schmalenbach wrote: > >> Hi Adrian > >> > >> 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? > >> Is this correct? > > > > After reboot sdx could be sdy, as you noticed. > > The solution: you dont access a drive via /dev/sdx > > You access per UUID and the kernel maps it to the appropiate sdXY which > > could be sdy after reboot. > > You can also label it. I loathe UUIDs - there is *no* way you're going to > remember one when you need it. Labels are so much clearer. > > > > I am not sure about initial ramdisks etc. maybe there is hardcoded stuff > > to sdx in there. Maybe it has to be rebuilt? Maybe you has to rebuild > > initrd as well as updating fstab? > > I've actually never seen a system *not* know what the first drive was, > hardware-wise. And grub will point to root hd(0,x), normally, not UUID or > anything else. You *can* (and I do, all the time) use LABEL= on the kernel > line. > > mark > > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos -- When the Pope visits a country he really likes, does he french kiss the ground????????? | |0| | Jobst Schmalenbach, jobst at barrett.com.au, General Manager | | |0| Barrett Consulting Group P/L & The Meditation Room P/L |0|0|0| +61 3 9532 7677, POBox 277, Caulfield South, 3162, Australia