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Date:      Thu, 20 Nov 1997 09:31:16 -0800 (PST)
From:      jthom@xnet.com
To:        freebsd-gnats-submit@FreeBSD.ORG
Subject:   bin/5105: mount_cd9660 or mount -t cd9660 fails to mount
Message-ID:  <199711201731.JAA20111@hub.freebsd.org>
Resent-Message-ID: <199711201740.JAA20623@hub.freebsd.org>

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>Number:         5105
>Category:       bin
>Synopsis:       mount_cd9660 or mount -t cd9660 fails to mount
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    freebsd-bugs
>State:          open
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Thu Nov 20 09:40:01 PST 1997
>Last-Modified:
>Originator:     John Thomlinson
>Organization:
>Release:        2.2.2-RELEASE
>Environment:
FreeBSD hera.tekdoc.com 2.2.2-RELEASE FreeBSD 2.2.2-RELEASE #0: Wed Sep  3 11:03:51 CDT 1997     root@hera.tekdoc.com:/usr/src/sys/compile/KERNEL-2.2.2  i386

>Description:
CD disk fails to mount.

command line:	mount_cd9660 /dev/mcd0a /cdrom

(system error output?):
	mcd0: timeout read data
	mcd0: retrying
	mcd0: timeout read data
	mcd0: retrying
	mcd0: timeout read data
	mcd0: retrying
	mcd0: timeout read data
	mcd0: retrying
	mcd0: timeout read data
	mcd0: retrying
	mcd0: timeout read data

command line result returned:
	mount_cd9660: /dev/mcd0a: Input/output error

This is the only CD I have encountered (so far ;) ) 
that does not mount. It mounts OK on a Debian Linux 
2.0.29 box. Other CDs mount on FBSD 2.2.2 OK. I have 
built the kernel only once.

The CD ROM setup info from dmesg is:
	mcd0: type Mitsumi LU006S, version info: M 15
	mcd0 at 0x634-0x637 irq 15 on isa

Interestingly I cannot redirect the output from the 
command. Not with "tee". Not with 2>1&>filename. But, 
perhaps I should not be able to redirect? The above 
listings were obtained by cut & paste.

Would it be helpful for me to email a dd output from the 
start of the CD? I could use my Debian box to get this. 
However, I am unfamiliar with CD filestructures and do 
not know how much to include.

I have checked PRs: kern/4735, kern/750, bin/4564. 

The latest file in /usr/src/sys/isofs/cd9660 is iso.h 
dated May 7, 1997; filesize 10624 bytes.

/lkm/cd9660_mod.o is dated May 20, 1997

If I can help in any way, please email.

Best Regards, JohnT

>How-To-Repeat:
Any invocation of mount_cd9660 or mount -t cd9660 
produces the same result.

Attempting "mount -o -s=0 -t cd9660 /dev/mcd0a /cdrom" 
results in "cd9660: illegal option -s".

Attempting to mount /dev/mcd0c, the raw device, produces 
the same results.

>Fix:
None. :(
>Audit-Trail:
>Unformatted:



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