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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /Documentation/filesystems/ufs.txt
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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1USING UFS
2=========
3
4mount -t ufs -o ufstype=type_of_ufs device dir
5
6
7UFS OPTIONS
8===========
9
10ufstype=type_of_ufs
11 UFS is a file system widely used in different operating systems.
12 The problem are differences among implementations. Features of
13 some implementations are undocumented, so its hard to recognize
14 type of ufs automatically. That's why user must specify type of
15 ufs manually by mount option ufstype. Possible values are:
16
17 old old format of ufs
18 default value, supported as read-only
19
20 44bsd used in FreeBSD, NetBSD, OpenBSD
21 supported as read-write
22
23 ufs2 used in FreeBSD 5.x
24 supported as read-only
25
26 5xbsd synonym for ufs2
27
28 sun used in SunOS (Solaris)
29 supported as read-write
30
31 sunx86 used in SunOS for Intel (Solarisx86)
32 supported as read-write
33
34 hp used in HP-UX
35 supported as read-only
36
37 nextstep
38 used in NextStep
39 supported as read-only
40
41 nextstep-cd
42 used for NextStep CDROMs (block_size == 2048)
43 supported as read-only
44
45 openstep
46 used in OpenStep
47 supported as read-only
48
49
50POSSIBLE PROBLEMS
51=================
52
53There is still bug in reallocation of fragment, in file fs/ufs/balloc.c,
54line 364. But it seems working on current buffer cache configuration.
55
56
57BUG REPORTS
58===========
59
60Any ufs bug report you can send to daniel.pirkl@email.cz (do not send
61partition tables bug reports.)