Thanks to gnivler and Tlarhices for help. I'd just tried Code: sudo mount /dev/cdrom /media/cdrom -o norock -o ro but it doesn't work... Here could be an answer of the reason : Code: dmesg | grep mount [ 8258.102945] UDF-fs: Partition marked readonly; forcing readonly mount [ 8279.374126] udf: bad mount option "norock" or missing value [ 8333.641370] UDF-fs: Partition marked readonly; forcing readonly mount And if you look in the man of mount, the norock option doesn't exist... Perhaps, it's relevant now : my Linux is Ubuntu 8.04. Here is my version of mount : mount (util-linux-ng 2.13.1) In the AppDB part of the site someone has the same problem, so I post a reply and see... But your new ideas will be welcome of course :-)
