Palanikumar Ramalingam wrote: > Dear redhat users: > I have a problem with my CDrom. I tried the following: > root@localhost kumar]# mount -t iso9660 /dev/cdrom /mnt/cdrom > mount: /dev/cdrom is not a valid block device [snip]
/dev/cdrom is just a symlink to your actual device (see below). Try the above command with the real device instead, ie: # mount -t iso9660 /dev/hdc /mnt/cdrom If that works, then put the symlink back again: ln -s /dev/hdc /dev/cdrom and try the original mount command again. Redhat generally puts the symlink in for you, as well as maintains the fstab file. You shouldn't need to edit it by hand for standard devices like cdroms and hard disk partitions, but non-standard devices (like compact flash memeory cards) are another story. That said, sometimes RedHat gets confused and you need to massage things by hand to get it back again. Kudzu (the hardware detection tool) normally sees all the connected devices (IDE, PCI, etc) at boot time, as long as they're powered on, but you may have a loose cable or something. If you're not afraid to open the case, check and make sure your IDE device cables are all seated properly (on both ends). If all the above is fine, and you still see intermittent devices (ie, sometimes they're there and sometimes they're not) then you probably have either a bad drive or a bad motherboard controller (or possibly a bad cable). It happens more often than you might think; I have several boards with bad components (ie, bad IDE chip, bad PS/2 controller, etc) where everything else on the board works fine. Also, some (older) IDE controller chips come broken out of the box (but they have known workarounds incorporated in the kernel). HTH, Steve -- ********************************************************** Steve Arnold http://arnolds.dhs.org -- redhat-list mailing list unsubscribe mailto:[EMAIL PROTECTED]?subject=unsubscribe https://listman.redhat.com/mailman/listinfo/redhat-list
