Re: iso9660 vs udf

From: Phillip Susi
Date: Wed Sep 19 2007 - 17:51:06 EST


Andries E. Brouwer wrote:
Today I got a CD. MacOS does not mount it and Linux does not
mount it without an explicit filesystemtype option.
That is,
# mount /dev/hdc /dir -t iso9660
works fine, but
# mount /dev/hdc /dir
mount: you didn't specify a filesystem type for /dev/hdc
I will try type udf
mount: wrong fs type, bad option, bad superblock on /dev/hdc,
missing codepage or other error
In some cases useful info is found in syslog - try
dmesg | tail or so
# dmesg | tail
UDF-fs INFO UDF 0.9.8.1 (2004/29/09) Mounting volume 'Wisk1956-82', timestamp 2006/03/07 16:26 (1078)
udf: udf_read_inode(ino 547) failed !bh
UDF-fs: Error in udf_iget, block=1, partition=1

What does the line for hdc show in /etc/fstab? Mount tries whichever filesystem(s) is/are listed there if you omit -t. My guess is that it only lists udf and this is a cd so it contains iso9660, not udf.

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