Date: Tue, 23 Jul 1996 16:17:55 -0500 (CDT) From: Jason Garman <garman@phs.k12.ar.us> To: questions@freebsd.org Subject: discrepancy between fdisk and device names Message-ID: <Pine.LNX.3.92.960723160745.18585A-100000@phs.k12.ar.us>
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Augh! I just got bitten by this one...
Here's my fdisk configuration:
The data for partition 0 is:
<UNUSED>
The data for partition 1 is:
sysid 165,(FreeBSD/NetBSD/386BSD)
start 42336, size 159264 (77 Meg), flag 80
beg: cyl 21/ sector 1/ head 0;
end: cyl 99/ sector 63/ head 31
The data for partition 2 is:
sysid 131,(Linux filesystem)
start 201600, size 1225728 (598 Meg), flag 0
beg: cyl 100/ sector 1/ head 0;
end: cyl 707/ sector 63/ head 31
The data for partition 3 is:
sysid 165,(FreeBSD/NetBSD/386BSD)
start 63, size 42273 (20 Meg), flag 0
beg: cyl 0/ sector 1/ head 1;
end: cyl 20/ sector 63/ head 31
I had just added partition 3; it used to be a dos partition on which I
stored the files so I could install FreeBSD on the first partition. Now I
wanted to change it into a swap parition for FreeBSD.
Since fdisk reported it as `partition 3,' naturally I erm, assumed, that
cooresponded to the `3rd slice,' or `/dev/wd0s3,' so I ran disklabel on
that, set up the partition and all, etc.
However: slice numbers start at ONE, not ZERO like the fdisk partition
numbers would lead you to believe. So now I've overwritten the first
twenty megs of my Linux filesystem because of a mixup between the two
numbers.
Is there any way that fdisk could be fixed so that it would report the
partition numbers starting at one, not zero, so they would more easily
correspond with the slice numbers in the device names in /dev? Also, is
there a document out there somewhere or anyone planning to do one on how
to do this sort of thing (i.e. adding disks or partitions to your FreeBSD
system?) If not, I'd volunteer to do one, since I think it's badly
needed.
Thanks,
--
Jason Garman http://www.nesc.k12.ar.us/~garman/
Student, Eleanor Roosevelt High School garman@phs.k12.ar.us
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