Assuming the Areca controller's virtual disk shows up as sd0, you can reinstall the MBR and boot blocks by:
1. Boot bsd.rd (from CD perhaps?) 2. fdisk -i sd0 (MBR) 3. mount /dev/sd0a to /mnt 4. installboot /mnt/boot /usr/mdec/biosboot sd0 (Boot blocks) Of course, I'm assuming here that your DOS disk partition was created as default by the installer. The disklabel should still show up in the same place this way. Did you already reinstall the MBR with fdisk at some point? It sounds like the rebuild process changed the size of the virtual disk (which seems unlikely to me but I guess it's possible) Federico Giannici [giann...@neomedia.it] wrote: > This night we had some problems with an Areca ARC-1220 RAID controller > (arc driver) installed in an OpenBSD 4.4 amd64. > > After the substitution of a couple of HDs the system restarted (in > rebuilding mode), but there was a problem: the RAID disk no longer > boot!!! > > The system see the controller, it correctly boot and seems to work ok. > The controller BIOS seems ok, apart from being in "Rebuild" state, but > this already occurred another couple of times before with no particular > problem. > > But this time, after the controller starts up, when the PC BIOS should > boot from the disk, the following message is written to video and > nothing more happens: > > Using drive 0, partition 3. > Loading... > > Looking at the controller "System events" I found a message that I have > never seen before: > > Rebuild LBA > > It seems that the controller messed-up with something in the boot > sequence of OpenBSD, but I cannot find exactly what. I have done a lot > of attempts with the fidk, disklabel and instalboot, but with no > success. I'm worried to experiment too much with that commands, because > I'm really scared to destroy all the data in the disk. > > Anybody can tell me what is the exact problem, and maybe suggest the > correct commands to restore the situation? > > Thanks. > > -- > ___________________________________________________ > __ > |- giann...@neomedia.it > |ederico Giannici http://www.neomedia.it > ___________________________________________________ -- Trying to bring taste and skill into a branch of artistic endeavor which had sunk to the lowest possible depths.
