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тАО10-22-2004 04:39 PM
тАО10-22-2004 04:39 PM
[root@linux101 root]# mount /mnt/cdrom
UDF-fs: No VRS found
[root@linux101 root]#
So what does "UDF-fs: No VRS found" means ?
Regards
Maaz
Solved! Go to Solution.
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тАО10-22-2004 09:47 PM
тАО10-22-2004 09:47 PM
Solutionand would have a look at /etc/filesystems and/or /proc/filesystems
What I thing this mean is that in your /etc/fstab the /mnt/cdrom is mounted with a UDF file system and this is not (found, bad or not there), also this option can be build in the kernel or loaded as a module.
I suspect your mount invokes -t UDF for cdrom and this is not compiled in kernel and not in modules
Tell us if any of the above is true ?
J-P
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тАО10-23-2004 12:07 AM
тАО10-23-2004 12:07 AM
Re: what does "UDF-fs: No VRS found", mean when mount cdrom?
UDF is the Universal Disk Format, and the VRS is the Volume Recognition Sequence, which identifies the type of data on your CD. It means that your CD driver (thru the kernel) doesn't identify the type of file system on the CD you try to mount.
Try to remove in /etc/fstab the type of data for cd drive for it to use autodetect without UDF.
If it doesn't fix things, please post dmesg content for further analysis.
hth
Jerome Henry
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тАО10-23-2004 02:39 AM
тАО10-23-2004 02:39 AM
Re: what does "UDF-fs: No VRS found", mean when mount cdrom?
Huc the message is not an error(i think) although it gives the "UDF-fs: No VRS found", but cdrom always mount and works properly. I think its kinda warning.
ok b4 the help from the forum, my /etc/fstab file was like:
cat /etc/fstab
/dev/cdrom /mnt/cdrom udf,iso9660 noauto,owner,kudzu,ro 0 0
but after reading the reply of HUC and Jerome Henry I edit it as :
/dev/cdrom /mnt/cdrom iso9660,udf noauto,owner,kudzu,ro 0 0
and now this messages has gone/finished, i.e. now i didnt receive this "UDF-fs: No VRS found" messages, after editing the /etc/fstab file
Many Thanks
Regards
Maaz
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тАО10-26-2004 08:09 PM
тАО10-26-2004 08:09 PM
Re: what does "UDF-fs: No VRS found", mean when mount cdrom?
the message means that no "volume recognition sequence" was found on the media. if you insert a simple iso9660 cd-rom there is no vrs. vrs is only found on udf formated cd-roms, dvd-roms and dvd-rams.
your workaround in /etc/fstab is the best way to work. first try iso9660 driver and second try udf driver.
best regards
johannes
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тАО11-01-2004 12:53 AM
тАО11-01-2004 12:53 AM
Re: what does "UDF-fs: No VRS found", mean when mount cdrom?
Thanks to all
Regards
Maaz