[1306] in linux-announce channel archive
jb-affs-1.0 - Amiga Fast File System
daemon@ATHENA.MIT.EDU (Lars Wirzenius)
Mon Nov 13 19:25:06 1995
Date: Sun, 12 Nov 1995 23:13:30 +0200
From: Lars Wirzenius <wirzeniu@cc.helsinki.fi>
To: linux-announce@vger.rutgers.edu
Reply-To: linux-announce-owner@vger.rutgers.edu
From: jbhr@sofal.tynet.sub.org (Hans-Joachim Widmaier)
Subject: jb-affs-1.0 - Amiga Fast File System
Approved: linux-announce@news.ornl.gov (Lars Wirzenius)
Newsgroups: comp.os.linux.announce
Followup-to: comp.os.linux.development.system
Organization: ?
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This is a somewhat enhanced Version of Ray Burr's original
affs for Linux.
- --- from README.first:
Differences to Ray's original AFFS:
- Amiga Rigid Disk Blocks are understood by the kernel. It'll report
the presence with a "RDSK", followed by the partition names (just
like it does with Linux and FAT partitions).
You can also install a native linux fs on one or more of them.
- Block sizes other than 512 bytes are supported, but no more than
4096 byte/block (up to that number, the kernel makes it quite easy,
above that it would get really awkward).
- The (normal) FFS (DOS\1) and the international FFS (DOS\3) are
supported. No Dircache (DOS\4, DOS\5) - there's no reason to use it
on a harddisk, and no OFS (DOS\0, DOS\2) - if you use that on a hd,
you deserve no better.
- The mount options are neither needed nor supported any more.
- pwd(1) (i.e. getcwd(3)) works now.
- statfs() is now supported, so df(1) reports real numbers for
amiga partitions.
Known bugs:
- The location of the root block is calculated with 512-byte blocks in
mind. If a partition uses bigger blocks and the root blocks moves
(due to a bad alignment), it will not be found (which seems not very
likely). Anyway, a mount option would be nice here ...
- The RDB is searched only in the very first sector of a harddisk.
(The Amiga should look for it in the first 16 sectors.)
- statfs() assumes always 2 reserved blocks.
- -------
AFFS comes as a patch to the 1.2.13 kernel source tree.
You can find it on Sunsite under system/Filesystems.
jbhr
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