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Old 05-03-2011, 11:55 PM   #1
Registered: May 2010
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fedora14 want to mount joliet Cd escape seq 25,2f,40

dont know how to do it

i have a cd that shows you an empty directory unless you mount it for the joliet extensions - specifically 25 2f 40. It uses wide characters with the high half null.

cam someone give me a suggestion?

Old 05-04-2011, 03:13 AM   #2
John VV
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no wonder i had to look it up

Joliet is an extension of the ISO 9660 standard, developed by Microsoft for Windows 95,
can you mount it on windows and then re burn the cd in a std format
Old 05-05-2011, 10:29 AM   #3
Registered: May 2010
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yes - i could do that, or merely read it from windows
i boot fedora on drive 0 and win98se on drive 1

it displays fine on win98se

i was trying to find out whether there is a way to mount it on fedora and assumed that maybe there was a mount option that would do it.

i infer from your comment that it is not exactly standard, although the author says i am the first to complain
Old 05-05-2011, 08:04 PM   #4
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I figured it out - its a bug in Fedora 14

The offending CD uses wide characters and long filenames. Fedora handles this with a volume descriptor of type 2, wherein the escape sequence is specified


the people who authored this CD did something a bit out of the ordinary. they included two type 1 volume descriptors ahead of the type 2 volume descriptor.

windows scans all the volume descriptors- spots the type 2 and sets it up for wide characters long filenames. Fedora aparently merely looks at the 2nd descrptor to see if it type 2 - however it is a repeat of the first - and decides that there is no type 2 descriptor here. thus Fedora opens it for 8 bit charactrers and 8.3 filenames


the authors of this CD did not include a directory or path file for 8 bit characters and 8.3 filenames - so to fedora the CD appears to be empty.

I've sent in a bug report to bugzilla.


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