Bug 49230

Summary:	Kernel 2.4.3-12 failes to mount UDF cd
Product:	[Retired] Red Hat Linux	Reporter:	Per Winkvist <per.winkvist>
Component:	kernel	Assignee:	Arjan van de Ven <arjanv>
Status:	CLOSED RAWHIDE	QA Contact:	Brock Organ <borgan>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	7.1	CC:	leob
Target Milestone:	---	Keywords:	FutureFeature
Target Release:	---
Hardware:	i686
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Enhancement
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2003-02-19 16:49:05 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Per Winkvist 2001-07-17 06:05:25 UTC

Description of problem:
Mounting a UDF formatted CD with the kernel that came with 7.1 was no 
problem. Yesterday I upgraded to 2.4.3-12 (from updates) and I can no 
longer mount a UDF cd. The mount command now complains about something 
like "PARTITION(1)  ...."

I do believe I have updated mount to the one from updates but I think I 
have used and UDF cd sucessfully after the mount upgrade and before the 
kernel upgrade.

Another short note: You can not use "mount -t auto ..." with UDF cd, then 
it will just mount it as ISO9660...

How reproducible:
Always

Steps to Reproduce:
1. Stick UDF cd in drive
2. mount -t udf /dev/cdrom /mnt/cdrom
3.
	

Actual Results:  The mount failes

Expected Results:  !(the mount failes)

Additional info:

Comment 1 Tim Mann 2001-08-24 22:09:55 UTC

I've had a slightly different experience with the 2.4.3-12 kernel.  I am able to
mount a UDF CD (by giving the -t udf flag to mount), but if I unmount it and try
to mount another, the mount hangs for a short time, then the machine locks up
solid and I have to do a hard reboot.  This happened twice in two tries.

Comment 2 Per Winkvist 2001-08-25 08:03:53 UTC

I upgraded to the kernel i Rawhide (2.4.7-2 I believe it was) a couple of days 
ago and now UDF works again. No other problems with that kernel either.

Comment 3 Leo B. 2002-08-18 04:06:34 UTC

It is possible to have a UDF CD that embeds a very small ISO-9660 filesystem, so
it could be mounted
both ways. If 'mount' is not given the the -t option, it will try to mount a CD
as iso9660 first and will
succeed.
This will result in something like:
% df /cdrom
Filesystem           1k-blocks      Used Available Use% Mounted on
/dev/cdrom                  56        56         0 100% /cdrom
% ls -l /cdrom
total 1
-r-xr-xr-x    1 root     root           55 Mar 29  2001 readme.txt
% cat /cdrom/readme.txt
Please read this CD in a system with UDF reader driver.

Therefore it is a good idea to change the filesystem probe order and put UDF
before ISO-9660, so that
mounting UDF CD-ROMs with such courtesy notices will do the Right Thing.

Comment 4 Bill Nottingham 2003-02-19 16:49:05 UTC

This is done in more decent releases.