Unix 5th and 6th Edition Filesystems for Linux

[Stuart Norris]

I mentioned this to Warren a few months back, but I don't think I 
sent it out to the mailing list, so excuse me if I am repeating myself.

Anyhow, I have hacked together a version of a Unix 5th (and 6th) 
Edition filesystem for Linux. It is read only, and was written for 
Linux 2.0 on an x86 and so will require a little work to install on
other systems and newer kernels, but it is fun to be able to mount 
old disk images. Now only if I had the time to get it read-write ...

[root at ebb disks]# ls -l
total 2447
-rw-------   1 norris   users     2494464 Feb 16  1999 ted_v6root
[root at ebb disks]# mount -t u5e -o loop ted_v6root /mnt/u5e
[root at ebb disks]# cd  /mnt/u5e
[root at ebb u5e]# ls -l
total 102
drwxrwxr-x   2 adm      sys          1104 May 14  1975 bin
drwxrwxr-x   2 adm      sys          1824 Aug 15  1975 dev
drwxrwxr-x   2 adm      sys           496 Aug 15  1975 etc
-rwxr-xr-x   1 root     sys         29932 Aug 15  1975 hpunix
drwxrwxr-x   2 adm      sys           464 May 14  1975 lib
drwxrwxr-x   2 adm      sys            32 May 14  1975 mnt
-rwxr-xr-x   1 root     sys         29932 Aug 15  1975 rkunix
drwxrwxrwt   2 adm      sys           272 Aug 15  1975 tmp
drwxrwxr-x  15 adm      sys           240 Aug 15  1975 u
-rwxr-xr-x   1 root     sys         28684 Aug 15  1975 unix
drwxrwxr-x  15 adm      sys           240 Aug 15  1975 usr

The source is sitting at

	http://www.maths.unsw.EDU.AU/~norris/software.html#u5e

Untar the file into /usr/src/linux-2.0.XX/fs/u5e-0.2, make it, and stick
the module into /lib/modules/2.0.XX/fs. Then mount your disk image with

	mount -t u5e -o loop <image> <mount point>

Cheers,

P.S. It is interesting to see that the GNU magic file is so up to date;

[root at ebb disks]# cd  /mnt/u5e/lib
[root at ebb u5e]# ls -la
total 228
drwxrwxr-x   2 adm      sys           464 May 14  1975 .
drwxrwxr-x  10 adm      sys           256 Aug 15  1975 ..
-rwxrwxr-x   1 adm      sys          5064 Jul 18  1975 as2
-rwxrwxr-x   1 adm      sys         15352 Jul 18  1975 c0
-rwxrwxr-x   1 adm      sys         21814 Jul 18  1975 c1
-rwxrwxr-x   1 adm      sys          8188 Jul 18  1975 c2
-rw-rw-r--   1 adm      sys           112 Jul 19  1975 crt0.o
-rwxrwxr-x   1 adm      sys         17424 Jul 18  1975 fc0
-rwxrwxr-x   1 adm      sys         23822 Jul 18  1975 fc1
-rw-rw-r--   1 adm      sys           136 Jul 19  1975 fcrt0.o
-rw-rw-r--   1 adm      sys         13810 Jul 18  1975 filib.a
-rw-rw-r--   1 adm      sys           340 Jul 18  1975 fr0.o
-rw-rw-r--   1 adm      sys         14118 Jul 18  1975 liba.a
-rw-rw-r--   1 adm      sys         22042 Jul 19  1975 libc.a
-rw-rw-r--   1 adm      sys         13958 Jul 18  1975 libf.a
-rw-rw-r--   1 adm      sys         27622 Jul 18  1975 libp.a
-rw-rw-r--   1 adm      sys          9982 Jul 19  1975 libs.a
-rw-rw-r--   1 adm      sys          3530 Jul 19  1975 liby.a
-rwxrwxr-x   1 adm      sys          3144 Jul 18  1975 lpr
-rw-rw-r--   1 adm      sys           436 Jul 19  1975 mcrt0.o
-rw-rw-rw-   1 root     bin          8794 Jul 19  1975 tmgb
[root at ebb u5e]# file *
as2:     PDP-11 pure executable
c0:      PDP-11 pure executable
c1:      PDP-11 pure executable
c2:      PDP-11 pure executable
crt0.o:  PDP-11 executable not stripped
fc0:     PDP-11 pure executable
fc1:     PDP-11 pure executable
fcrt0.o: PDP-11 executable not stripped
filib.a: very old PDP-11 archive
fr0.o:   PDP-11 executable not stripped
liba.a:  very old PDP-11 archive
libc.a:  very old PDP-11 archive
libf.a:  very old PDP-11 archive
libp.a:  very old PDP-11 archive
libs.a:  very old PDP-11 archive
liby.a:  very old PDP-11 archive
lpr:     PDP-11 executable
mcrt0.o: PDP-11 executable not stripped
tmgb:    very old PDP-11 archive

-- 
Stuart Norris                                   norris at mech.eng.usyd.edu.au
Mechanical Engineering,University of Sydney,NSW 2006   wk:+(61 2) 9351-2272
http://www.maths.unsw.edu.au/~norris                   hm:+(61 2) 9326-5276



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