Ubuntu Help

[shribble]

Initially, my CD/DVD drive worked. I copied off old files and watched a DVD. Last night, I rebooted and my DVD movie was listed as a blank DVD ROM. A music CD was also listed as blank. I restarted and things worked again. Not so any more. When I run this sudo mount /media/cdrom0/ -o unhide I get a lovely message telling me my drive is write

Comments

[gamahucheur]

A mount point is a directory associated with a device, such that they information on the device is made available as files within the directory. The device, which is listed qua file (and in some cases might be a file residing encoded on some other device, such as the hard drive), is not itself a directory. The command mount associates a device with a mount point.

Now, someone might ask why the device isn't in fact simply presented as a sub-file-system, sparing the user the task of mounting. Well, there is a distinction between hiding the underlying device qua device and having it auto·mounted. My system does not hide the device, but it does auto·mount CDs and DVDs. Hiding the device would reduce my options.

Normally, a CD or DVD is mounted with something such as mount -t iso9660 -r
where and will each be replaced by a specification. For SCSI CD/DVD drives, the device is usually identified as /dev/sdc0, otherwise it is usually identified as /dev/hdc. I've seen various directories used as mount points, including /cdrom, /mnt/