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From: font@MCS.COM (Font)
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Duplicated boot disk panics; cannot mount root
Date: 27 Mar 1997 19:57:50 -0600
Organization: MCSNet Services
Lines: 52
Message-ID: <5hf8iu$31n$1@Venus.mcs.net>
NNTP-Posting-Host: venus.mcs.net
Xref: euryale.cc.adfa.oz.au comp.unix.bsd.freebsd.misc:38039
My goal: duplicate a boot disk on a FreeBSD 2.1.6.1 system.
My problem: after duplicating the disk, the duplicate will not boot;
after the generic kernel devices are configured, booting stops with a
panic, with the console indicating the root could not be mounted.
...
npx0 on motherboard
npx0: INT 16 interface
panic: cannot mount root
syncing disks... done
Automatic reboot in 15 seconds - press a key on the console to abort
The hardware: Dell P75t, AHA2940AU, Seagate Fast SCSI-2 boot, Imprimis
SCSI-1 duplicate.
How the duplication was attempted (1):
- duplicate disk came from a Macintosh
- duplicate disk formatted with scsiformat
- disklabel and boot written with disklabel
disklabel -r -w sd1 auto
disklabel -B sd1
disklabel -e sd1
- these steps sometimes result in console errors, including a
lack of magic
- newfs on /dev/rsd1[a,e,f,g]
- swap drive ids and reboot
Since this failed, we also have How the duplication was attempted (2):
- from MS-DOS, FDISK /MBR, and then made a FAT32 partition
- from FreeBSD, change FAT32 partition to FreeBSD partition/slice
- disklabel and newfs as above
- swap drive ids and reboot to identical failure
Finally, How the duplication was attempted (3):
- identical to process described in FAQ
- swap drive ids and reboot to identical failure
There must be something obvious eluding me. Please, what is it? I'd
tear out my hair but I don't have much of it left.
I noticed in /dev I have no [r]sd1s[1234]* entries, though I have
[r]sd1* without slices. Do I need to MAKEDEV these somehow or is this
unrelated?
No, I am not related to any Higher Source people. :-/
--
font@mcs.net Wishes are like dishes.