Thank you for answer.
I change /etc/fstab and using UUID instead of LABEL. after reboot, UUID did NOT change disk sequence back to what I want. Boot device original /dev/sda1, it still /dev/sdc1 NO change.
--- 09/6/29 (一)，Joseph L. Casale JCasale@activenetwerx.com 寫道：
寄件者: Joseph L. Casale JCasale@activenetwerx.com 主旨: Re: [CentOS] How to change Disk sequence on DELL R900 CENTOS 5.3? 收件者: "'CentOS mailing list'" centos@centos.org 日期: 2009年6月29日,一,上午2:22
how to change sequence back?
Rather than chase that never ending loop, maybe now is the time to look into an fstab populated by UUID. _______________________________________________ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
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mcclnx mcc wrote:
Thank you for answer.
I change /etc/fstab and using UUID instead of LABEL. after reboot, UUID did NOT change disk sequence back to what I want. Boot device original /dev/sda1, it still /dev/sdc1 NO change.
Have you tried asking Dell? Your asking to change the boot device order which is a hardware question, not a OS question.
In any case I believe you mentioned you had multiple controllers that were using the same driver, in my experience the only way to change the order in that situation is to change the IRQs of the controllers, usually the one with the lower IRQ is detected first. This can usually be done in the BIOS or by changing the slots that the controllers are in.
It is probably a better to just use different controllers that use different drivers anyways.
nate
2009/7/1 mcclnx mcc mcclnx@yahoo.com.tw:
Thank you for answer.
I change /etc/fstab and using UUID instead of LABEL. after reboot, UUID did NOT change disk sequence back to what I want. Boot device original /dev/sda1, it still /dev/sdc1 NO change.
Modify modprobe.conf to list the disk driver you want loaded in the order you want then re-make the initrd file:
For example, say you want your internal SATA disks recognized before your SAS RAID disks, your modprobe for the scsi_hostadapter would look something like this:
alias scsi_hostadapter ata_piix (or ahci, sata_XXX whatever your SATA controller is) alias scsi_hostadapter0 megaraid_sas
Then you remake your initrd with a command:
mkinitrd -f /boot/initrd-$(uname -r).img $(uname -r)
Remember to use LABELs or UUIDs in fstab first or your partitions won't mount (wrong disk names)!
Then reboot.
-Ross
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mcclnx mcc -
nate -
Ross Walker