Last week, I wrote:
>A Sparc 1 detects two disks on its second SCSI bus at boot time,
>can mount filesystems on those disks, but format(8S) cannot
>see one of the two. Can anyone explain this? (The two disks
>were formatted/partitioned one at a time using the SCSI target
>ID that format seems to be able to see.)
>
Thanks to:
caxwgk@pki-nbg.philips.de (Wolfgang Kuehnel )
mike@trdlnk.chi.il.us (Michael Sullivan)
davis@ee.udel.edu
larry@ma.pdc.com (Larry Freeman)
poffen@sj.ate.slb.com (Russ Poffenberger)
"Stephen Miller" <stevem@csdc02.orl.mmc.com>
wallen@cogsci.UCSD.EDU (Mark R. Wallen)
lindy@olsen.ch (Lindy Foster)
ptek@vulcan.pwcm.com (Paul Tekverk)
dav@genisco.gtc.com (David L. Markowitz)
fallan@baobab.awadi.com.AU (Frank Allan (Network Mgr))
glenn@uniq.com.au (Glenn Satchell - Uniq Professional Services)
While several people suggested checking my kernel configuration
(to see if the disks were defined) and/or checking for the
presence of entries in /dev for the disks, the fact that file-
systems on the "missing" disk could be mounted suggest that
neither of these was the problem.
Most people, however, suggesting checking the "search path"
section of /etc/format.dat for declaration of the "missing"
disk. Sure enough, it wasn't there. Turns out that the system
had recently been upgraded to 4.1.3, but the old customized
format.dat file was restored from a backup. The default 4.1.3
format.dat includes the following list:
search_path = xd0, xd1, xd2, xd3, xd4, xd5, xd6, xd7, xd8, xd9, xd10, xd11, \
xd12, xd13, xd14, xd15, xy[0-3], sd[0-7], sd8, sd9, sd1[0-9], \
sd20, id0[0-4][0-7]
Note that this list uses wildcard notation to include all possible SCSI
disk id's from sd0 through sd19.
-- Tim Evans | E.I. du Pont de Nemours & Co. tkevans@eplrx7.es.dupont.com | Experimental Station (302) 695-9353/7395 | P.O. Box 80357 EVANSTK AT A1 AT ESVAX | Wilmington, Delaware 19880-0357
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