Hello, On Mon, 15 Mar 2010, Carlos E. R. wrote:
A few weeks ago we finally found a resource lock bug in xfs / kernel loop devices that crashed the kernel. Testing this caused my entire root filesystem (different from the xfs data filesystem being tested) to be destroyed entirely. I had to reinstall from scratch. I lost weeks of configuration work.
The xfs bug has been found, but the cause of data destruction in the root (reiserfs) has not being investigated.
I'm now very wary of doing tests. :-/
*ouch*
I need the machine to boot from HD
What's the difference if you can boot from USB instead to (possibly) achieve better performance?
USB is far slower than the HD.
Look, tomorrow (now it is past 2 AM, and I get up at 6) I'll set the external sata drives to AHCI, and try to boot from the remaining internal disks, on IDE mode. I'll try to see if the external disks can be found.
Is that good enough for you?
Good enough for me. Anyway: when I set the onboard controller to AHCI, the drives too disappear from the BIOS. And they reappear as IDE-Drives in the BIOS-screen when I set to IDE-mode. But, in AHCI-mode, when I boot, I get the BIOS screen (without(!) the drives), then the RAID-BIOS screen from the extra SATA-Controller, and _THEN_ an "AHCI BIOS" screen from AMI, showing my "disappeared drives" and telling me to press ctrl-a to get into the "Hyper Drive Utility" (which is useless). Then Grub loads normally (IIRC I didn't need to reinstall grub after the mobo switch and IDE->AHCI change, same drive, reconnected to SATA0 / /dev/sda). You just need to add 'ahci' into your initrd before that so that you can actually boot if above is similar with your BIOS. Darn. Can't remember when I did add ahci to the initrd, but IIRC I switched to AHCI on first boot, so I must have added it before the mobo change. I think you can safely boot to grub / to where grub should apear, and then just press ctrl+alt+del to reboot (+ del/F2 after reboot) and reenter the BIOS. AFAIK you can actually switch drivers under linux without problems, I used sata_nv on the old mobo and use AHCI-mode/ahci-driver on the new mobo for a bunch of disks, without ill effects. It's just Windows that's (as usual) too stupid to switch drivers. So you you should not have to fear for your data switching to AHCI (only eSATA at first should work, but you might need a disk there). HTH, -dnh -- Vala: Thank you. I apologize for ever doubting [Mitchells] masterful skills at negotiation. Daniel: He's doing the best he can. Vala: That's what terrifies me. -- Stargate SG-1, 9x05 - The Powers That Be -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org