read the install documentation. since you don't seem to be able to, here goes.
when you install an operating system to a computer the majority of them will store a boot record on the MBR (master boot record, go figure) of the drive used by the BIOS to boot the system. I'm guessing that SD0 is your primary hard drive, the one used to boot the system. installing openbsd changed the MBR. if you want to be able to boot multiple operating systems, read up on that. > -----Original Message----- > From: owner-m...@openbsd.org [mailto:owner-m...@openbsd.org] On Behalf > Of jean-francois > Sent: Thursday, July 09, 2009 11:56 AM > To: Theo de Raadt; misc@openbsd.org > Subject: Re: Install difficulties > > I remember that I used to start install procedure on each disk > answering > yes to 'all disk should be used for this install', then I just checked > the size of the disk in the disklabel, in order to identify the one I > was look for and then quit & reboot without more modifications (p at > disklabel then q and halt). > > After this the two disks sdb/sdc that were hosting win and linux did > not > boot anymore. > > Could you tell me if doing so has modified in any way the partitions or > mbr ? > > Thank you
