Date: Sat, 2 Sep 2000 13:12:56 +0530 (IST) From: Rakhesh Sasidharan <rakhesh@cse.iitd.ernet.in> To: freebsd-questions@freebsd.org Subject: Accessing OpenBSD-2.7 partitions from FreeBSD-3.4 Message-ID: <Pine.LNX.4.10.10009021312150.1853-100000@basant.cse.iitd.ernet.in>
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Hi, I have a setup in my machine as follows: Slice3 -> OpenBSD Slice4 -> FreeBSD I had installed FreeBSD first, and then OpenBSD. After installing OpenBSD, I booted into FreeBSD to try and access the OpenBSD partitions from there. $ disklabel wd0s3 disklabel: ioctl DIOCGDINFO: Invalid argument $ disklabel -r wd0s3 # /dev/rwd0s3c: (snip) bytes/sector: 512 sectors/track: 63 tracks/cylinder: 16 sectors/cylinder: 1008 cylinders: 16383 sectors/unit: 33683328 (snip) 16 partitions: # size offset fstype [fsize bsize bps/cpg] a: 71680 8456466 4.2BSD 1024 8192 16 # (Cyl. 8389*- 8460*) b: 272624 14850322 swap # (Cyl. 14732*- 15002*) c: 33683328 0 unused 0 0 # (Cyl. 0 - 33415) d: 4755456 9992466 4.2BSD 1024 8192 16 # (Cyl. 9913*- 14630*) e: 51200 8528146 4.2BSD 1024 8192 16 # (Cyl. 8460*- 8511*) f: 1413120 8579346 4.2BSD 1024 8192 16 # (Cyl. 8511*- 9913*) However, I try to access wd0s3a, and it gives me the following error: $ mount /dev/wd0s3a /mnt/ mount: /dev/wd0s3a on /mnt: incorrect super block Why ? What is wrong ? From what I experimented around with, (and my own limited knowledge from that), I feel it is because FreeBSD is getting confused with the offsets of partitions 'a' etc. FreeBSD expects offsets relative to the slice, but these are all absolute. I tried changing the offset to '0', but disklabel gave an error that there is 'No space left on device.' I even tried changing things like the offsets and sizes of 'c' and the number of sectors/unit etc. -- but all of them ended up in failures. Please help. TIA. Rakhesh To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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