Date: Sat, 11 Mar 2006 22:05:14 -0500 (EST) From: Peter <petermatulis@yahoo.ca> To: freebsd-questions <freebsd-questions@freebsd.org> Subject: "cg 0: bad magic number" [used to be "Disappointed with version 6.0] Message-ID: <20060312030514.67606.qmail@web60018.mail.yahoo.com>
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Ok, I have narrowed down my problem a great deal. It appears that
FreeBSD cannot read the partition table of my 300 GB Seagate Barracuda.
My dos diagnostic utility works because it accesses the disk in a
different way.
I used the entire disk (one slice/partition) and attempted to format
it. This is what I get after it reaches the end of the disk:
"cg 0: bad magic number"
It also slows down significantly about 3/4 through the procedure.
Now the funny part. I create two partitions and the newfs output is
exactly the same as before when I try to format the first partition!
It tries to format as if there is only one partition and produces the
same error.
If I remove the slice via sysinstall and then try fdisk I get this:
# fdisk -vBI ad3
******* Working on device /dev/ad3 *******
parameters extracted from in-core disklabel are:
cylinders=581421 heads=16 sectors/track=63 (1008 blks/cyl)
Figures below won't work with BIOS for partitions not in cyl 1
parameters to be used for BIOS calculations are:
cylinders=581421 heads=16 sectors/track=63 (1008 blks/cyl)
Information from DOS bootblock is:
1: sysid 165 (0xa5),(FreeBSD/NetBSD/386BSD)
start 63, size 586072305 (286168 Meg), flag 80 (active)
beg: cyl 0/ head 1/ sector 1;
end: cyl 812/ head 15/ sector 63
2: <UNUSED>
3: <UNUSED>
4: <UNUSED>
fdisk: Geom not found
Anyone?
--
Peter
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