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- Path: gemini.oscs.montana.edu!osymh
- From: osymh@gemini.oscs.montana.edu (Michael L. Hitch)
- Newsgroups: comp.unix.amiga
- Subject: Re: NetBSD-1.1 then BFFS?
- Date: 30 Jan 1996 17:12:37 GMT
- Organization: Montana State University
- Message-ID: <4elji5$5up@news.oscs.montana.edu>
- References: <4e7ves$hne@stc06.ctd.ornl.gov> <4ebv3l$ohb@news.mtu.edu>
- NNTP-Posting-Host: gemini.oscs.montana.edu
- Keywords: NetBSD-1.1, BFFS, BSD 4.4,filsystems
-
- In article <4ebv3l$ohb@news.mtu.edu>, Chris Hooper <cdh@mtu.edu> wrote:
- >Charles Thomas <thomas@ORNL.GOV> wrote:
- >> 2. There's mention of the BSD 4.4 version of the
- >> filesystem. I used the NetBSD utilities to
- >> create the filesystems and they show up as
- >> version 4.2 when I do a disklabel command.
- >> Is that what a BFFS file system looks like on
- >> the NetBSD-1.1 side?
- >
- ...
- >I don't have complete confidence in what disklabel tells
- >you the filesystem is. If it reads that information out of
- >the disk label and not directly out of the filesystem, then
- >there is a chance it's not telling you the truth. You may
- >want to try using dumpfs and look at the format field it
- >gives. Sorry, I don't have easy access to a NetBSD machine
- >so I can't be more precise than this.
-
- The filesystem type in the disklabel does not distinguish between the
- various changes to the BSD Fast File System. The only way to tell the
- actual format of the filesystem is to use dumpfs.
-
- Also, the Amiga does not have "real" disk labels: the memory copy of
- the disklabel is created from the information in the RDB blocks, which
- don't normally contain any NetBSD-specific information other than the
- DOS Type value. This also means that the fragment size, number of fragments
- per block, and cylinders per group is not normally available. There is
- a provision for these values in the environment vector, but there isn't
- anything that will set these fields in the partition blocks. The disk
- label data is set to "typical" defaults (1K fragement, 8 fragments per
- block, and 0 cylinders per group [since there isn't a "typical" value
- for that]) when the RDB information is processed.
-
- Michael
- --
- Michael L. Hitch INTERNET: osymh@montana.edu
- Computer Consultant
- Information Technology Center
- Montana State University Bozeman, MT USA
-