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From: amurai@spec.co.jp (Atsushi MURAI)
Newsgroups: comp.os.386bsd.bugs
Subject: [Source] ISOFS with Rock Ridge Ext. (1/3)
Message-ID: <3227@specgw.spec.co.jp>
Date: 19 Jul 93 07:08:25 GMT
Sender: amurai@specgw.spec.co.jp
Organization: System Planning and Engineering Corp., Tokyo, Japan
Lines: 133
X-Newsreader: mnews [version 1.16PL1]
I am not native speaker so just I can say
"Hope this source helpful and enjoyable for you!"
Atsushi.
-----------------------Readme on /sys/isofs ----------------------------
1.Installation
1) Make a BACK UP!!
Because My patch level is too old (2.2.1), I don't want to
screw up your current hacks just in case.
I hope Patch coordinater and Both Jolitz will take care of this
issue near future.......(Right?)
example.
mv /usr/include/sys/mount.h /usr/include/sys/mount.h.norrip
mv /sys/conf/files /sys/conf/files.norrip
mv /sys/../sbin/mount_isofs /sys/../sbin/mount_isofs.norrip
mv /sys/../sbin/mount /sys/../sbin/mount.norrip
mv /sys/isofs /sys/isofs.norrip
2) Extract file.
Become root.
cd /
zcat isofs.tar.Z | tar xvf -
3) Rebuild mount and mount_isofs
cd /sys/../sbin/mount
make
make install
cd /sys/../sbin/mount_isofs
make
make install
4) Rebuild your kernel.
cd /sys/i386/conf
config <your kernel name>
cd /sys/../sys.386bsd/compiles/<your kernel name>
make depend
make
cp 386bsd /386bsd
sync
5) Reboot!
2. Usage
1) It will be mount as the Rock Ridge Extension if cd-rom has it,
and cd-rom doesn't has this extension, will mount as ISO9660 mode
automatically.
ex. mount -t isofs /dev/cd0d /cdrom
2) If you want to mount as ISO9660 that the Rock Ridge Extension disabled,
just type a mount option like follow;
ex. mount -t isofs -o norrip /dev/cd0d /cdrom
3. Done and TODO.
1) should understand "older", original High Sierra ("CDROM001") type
Not yet. ( I don't have this technical information, yet. )
2) should understand Rock Ridge
Yes, we have follows function.
o Symbolic Link
o Real Name(long name)
o File Attribute
o Time stamp
o uid, gid
Except follows:
o POSIX device modes
I have no idea right now, we should check a REAL implementation
for 386BSD.....
o Limitation of 8 level directory( ISO9660 limitation )
Rock Ridge Extension are defined with the "CL/PL/RE" for getting
rid of this limitation. But as far as I test the cdroms,I'v never
seen this definition and we can access the over 8 level without
it. (Another word, this limitation is NOT physical ISO9660's
FORMAT limitation for unix stuffs.... I believe... )
3) should be called cdfs, as there are other ISO file system soon possible
Not yet. Probably we should make another file system when the ECMA draft
is valid and do it. For doing Rock Ridge Support, I can use almost same
code. So I just use the same file system interface...
4) should have file handles implemented for use with NFS, etc
Yes. we have already this one, and I based it for this release.
5) should have name translation enabled by mount flag
Yes. we can disable the Rock Ridge Extension by follows option;
"mount -t isofs -o norrip /dev/cd0d /cdrom"
6) should run as a user process, and not take up kernel space (cdroms
are slow)
Not yet. And addition, we should try to avoid a long seek by a absolute path
with using the PATH TABLE or other method.
7) ECMA support.
Not yet. we need not only a technical spec but also ECMA format
cd-rom itself!
8) Character set change by SVD ( multi SVD support )
Not yet. We should also hack the other part of system as 8 bit
clean. As far as I know, if you export the cdrom by NFS, the client
can access the 8 bit clean (ie. Solaris Japanese with EUC code )
----------
Last update July 19, '93 by Atsushi Murai. (amurai@spec.co.jp)
Atsushi Murai E-Mail: amurai@spec.co.jp
SPEC Voice : +81-3-3833-5341
System Planning and Engineering Corp.