Hello Ross, On Fri, 3 Feb 2012 16:01:53 -0500 Ross Walker <rswwalker@xxxxxxxxx> wrote: > On Feb 3, 2012, at 1:34 PM, wwp <subscript@xxxxxxx> wrote: > > > Hello Jerry, > > > > > > On Fri, 03 Feb 2012 12:24:14 -0500 Jerry Geis <geisj@xxxxxxxxxxxxxxx> wrote: > > > >> I am trying to install 6.2 on a machine. > >> I am using PXE as I have done so a number of times. > >> > >> My hard disk is being detected as sdb and not sda. > >> My kickstart config is wanting it at sda. > >> > >> There are no other disks in the unit. It has and SD slot and an esata > >> although BIOS does not appear to have a disable for either of those devices. > >> > >> Is there anyway to "force" the disk to sda ? > >> or find out what its detecting at sda and disable that from the PXE boot > >> line? > >> > >> Doing " dmesg | grep sda" does say SCSI removable disk. > >> > >> So how can I tell linux to NOT include that when installing? > > > > I noticed that behaviour with my CentOS6 (installed and kept up-to-date > > using yum). This happened since kernel kernel-2.6.32-220.el6.x86_64 and > > furthers updates. Was working as expected (my laptop's hdd mounted as > > sda) with previous kernels, up to kernel-2.6.32-131.21.1.el6.x86_64. > > > > I wonder if that behaviour, and the *change* of behaviour is an issue > > that should be reported, and how to handle it on installed systems! > > For now, I'm either booting w/ no USB disk plugged, or booting > > a 2.6.32-131 kernel. > > You can try disabling USB disk support in the bios. Right, but I can't make such settings permanent, as I need to boot from a USB disk from time to time, thus, entering BIOS and changing settings costs more than unplugging stuff :-). An aspect of the problem w/ that behaviour change introduced w/ recent kernel updates, is that some mount mapping tables (fstab for instance) are broken if they rely on mount order (sda, hda, etc.) instead of device ID or label. Regards, -- wwp
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