From: Felix Miata <mrmazda@earthlink.net> To: opensuse@opensuse.org Sent: Sun, November 14, 2010 7:38:52 AM Subject: Re: [opensuse] 11.3 grub and disk ordering/numbering
On 2010/11/14 13:49 (GMT+0100) Philipp Thomas composed:
Cristian Rodríguez wrote:
Grub messes stuff around
It's not grub but the BIOS that messes things up and enumerates differently
UUID & LABEL get the kernel/OS around this, but Grub 1 can't deal with it.
I assume udev is messing stuff up, and that there is no warranty disks will appear in the same order..
Nobody is messing things up. It's just that in the world of dynamic devices and device handling device enumeration isn't really predictable.
It's really not much problem, IF you can:
1-boot with any USB storage devices attached only if you intend to actually boot from such device on that boot
2-stick to using either PATA or SATA exclusively for HDs
OTOH, changing the PATA/SATA mix, or replacing a PATA or SATA HD, after installing to either or both not unusually produces devastation. This is what the recent Stan G >>"Unsuccessful installation of operating system" & "BIOS/GRUB Problem" & Bob S "Basic 11.3 questions" threads were all about. This is not to say I have no experience with >>the problem, as we got Bob S's figured out by having him bring it here, and I guided Stan G to solution via email conversation extending over several weeks.
This doesn't happen to my many systems because I don't mix SATA & PATA, and have not one single bootable USB storage device. On most, I find a single HD perfectly >>adequate for 3, 5 or 10 or more installed operating systems, backing up across the network, or to temporarily attached USB or eSATA storage devices.
It looks to me like those who need a PATA/SATA/USB mix need to explore Grub "2", which may actually reach v2 GA in less than another year. -- "The wise are known for their understanding, and pleasant words are persuasive." Proverbs 16:21 (New Living Translation)
Team OS/2 ** Reg. Linux User #211409
Actually, I am using SATA disks only. I have several HBA SATA controllers plus the SATA ports on the system board. The odd thing to me is the the openSuSE system disk was "detected" as the 5th drive. When I added a couple of SATA disks to the motherboard port, I expected that my system disk would order would either stay the same or get bumped by 2 based on what order the BIOS exported the drives to the OS. To my surprise, the system disk got re-ordered as the first drive! I don't know why that would happen, but it was unexpected. A little trial an error with GRUB and I got the order figured out and the system works fine now with all drives attached. Vahe -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org