1 # SPDX-License-Identifier: GPL-2.0-only
2 config SYSV_FS
3 tristate "System V/Xenix/V7/Coherent file system support"
4 depends on BLOCK
5 select BUFFER_HEAD
6 help
7 SCO, Xenix and Coherent are commercial Unix systems for Intel
8 machines, and Version 7 was used on the DEC PDP-11. Saying Y
9 here would allow you to read from their floppies and hard disk
10 partitions.
11
12 If you have floppies or hard disk partitions like that, it is likely
13 that they contain binaries from those other Unix systems; in order
14 to run these binaries, you will want to install linux-abi which is
15 a set of kernel modules that lets you run SCO, Xenix, Wyse,
16 UnixWare, Dell Unix and System V programs under Linux. It is
17 available via FTP (user: ftp) from
18 <ftp://ftp.openlinux.org/pub/people/hch/linux-abi/>).
19 NOTE: that will work only for binaries from Intel-based systems;
20 PDP ones will have to wait until somebody ports Linux to -11 ;-)
21
22 If you only intend to mount files from some other Unix over the
23 network using NFS, you don't need the System V file system support
24 (but you need NFS file system support obviously).
25
26 Note that this option is generally not needed for floppies, since a
27 good portable way to transport files and directories between unixes
28 (and even other operating systems) is given by the tar program ("man
29 tar" or preferably "info tar"). Note also that this option has
30 nothing whatsoever to do with the option "System V IPC". Read about
31 the System V file system in
32 <file:Documentation/filesystems/sysv-fs.rst>.
33 Saying Y here will enlarge your kernel by about 27 KB.
34
35 To compile this as a module, choose M here: the module will be called
36 sysv.
37
38 If you haven't heard about all of this before, it's safe to say N.
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.