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Path: euryale.cc.adfa.oz.au!newshost.anu.edu.au!harbinger.cc.monash.edu.au!news.mel.connect.com.au!munnari.OZ.AU!spool.mu.edu!howland.reston.ans.net!blackbush.xlink.net!zib-berlin.de!news.tu-chemnitz.de!irz401!uriah.heep!news From: j@uriah.heep.sax.de (J Wunsch) Newsgroups: comp.unix.bsd.freebsd.misc Subject: Re: Booting from primary disk on secondary PCI IDE controller Date: 30 Dec 1995 09:30:51 GMT Organization: Private BSD site, Dresden Lines: 36 Message-ID: <4c30sb$p1l@uriah.heep.sax.de> References: <4c1avr$73@daneel.sds.no> Reply-To: joerg_wunsch@uriah.heep.sax.de (Joerg Wunsch) NNTP-Posting-Host: localhost.heep.sax.de Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit X-Newsreader: knews 0.9.3 toreh@bootes.sds.no (Tore haraldsen) writes: > My machine, a Celebris 560 w/CMD640 PCI dual EIDE controller, is set > up with a Conner CFP850A as primary disk on the first IDE > controller, a Quantum LPS540A as primary disk on the second IDE > controller, and a Sony CDU55-E as a secondary on the second > controller. > Then comes the re-boot and a small problem: > > The command to boot from the second disk turns out to be > > wd(1,a)/kernel > > ... and then the kernel goes on to try to mount the root file system from > wd1a! GREAT, except it is actually on wd2a!! > I tried the /kernel -a flag, and the kernel does NOT ask what file > system to mount as root file system. Variants with `holes' in the IDE drive assignment aren't fully supported. There are too many variations. :-( (In particular, if you are also thinking about an additional SCSI controller.) > What can I do the make this configuration work with just a boot floppy? Modify the code for the bootblocks in sys/i386/boot/biosboot/boot.c, remake the bootblocks, and the disklabel -B -b boot1 -s boot2 fd0 in order to install the new blocks on your floppy. -- cheers, J"org joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE Never trust an operating system you don't have sources for. ;-)