topic Re: cannot mount or boot from cd in Operating System - Linux

cannot mount or boot from cd

lcw — Thu, 11 Oct 2007 22:07:44 GMT

I am currently using BL460c blades on a C3000 enclosure. I am running Linux Redhat OS and i'm trying to install a Win Server 2003 which is supposed to boot from the CD.

However, the CD does not boot up during start up, and I can't seem to mount the CD in Linux. (I'm new to linux, so not sure I did it correctly also.)

I logged in as "root", and went to "system tools" -> terminal, and keyyed in :
mount -t iso9660 -o ro /dev/cdrom /cdrom
mount /dev/sud0 /cdrom

both doesn't work. Am I doing it correctly? How can I check if the CDrom has been connected to the blade?

Re: cannot mount or boot from cd

Srimalik — Fri, 12 Oct 2007 00:00:43 GMT

What was the output of mount commands you used?

Re: cannot mount or boot from cd

lcw — Fri, 12 Oct 2007 01:23:47 GMT

The output from each command i got is indicative with an arrow(->) as shown below:

mount -t iso9660 -o ro /dev/cdrom /cdrom
-> mount: mount point /cdrom does not exist

mount /dev/sud0 /cdrom
-> mount: you must specify the file system type.

Re: cannot mount or boot from cd

Steven Schweda — Fri, 12 Oct 2007 01:59:28 GMT

> -> mount: mount point /cdrom does not exist

Perhaps it means what it says. Did you try
"mkdir /cdrom"?

Re: cannot mount or boot from cd

Jimmy Vance — Fri, 12 Oct 2007 02:54:25 GMT

What boots during startup, the hard drive? You might need to check the boot order and make sure CDROM is listed as 1st device

if the /cdrom directory doesn't exist, that's the error you will get from the mount command

RH should automount the CD, I think it mounts to a directory under /media

/dev/cdrom is usually a link to the actual device, if the rom drive wasn't connected during install the link may not be there

USB drives are usually seen as SCSI devices

I just checked on one of my c-class systems running SLES10. I used virtual media through iLO2 and mounted an .iso image, it showed up as /dev/sr0. This system was setup using a network install so there is no /dev/cdrom

so you might try

mount /dev/sr0 /mnt
then
ls /mnt

mount will try to determine the type so you generally don't need to use -t and it will mount a CD read only so you don't need the ro option

Re: cannot mount or boot from cd

Srimalik — Fri, 12 Oct 2007 04:05:23 GMT

From the first error it seems that the mountpoint is not present.

please created /cdrom directory using "mkdir /cdrom" as suggested.

Red hat tries to mount a CD in /mnt/cdrom, if you have an entry for /dev/cdrom (or whatever device) in /etc/fstab

try this command:

mount /mnt/cdrom

also check /etc/fstab the path may be different there.....Change accordingly.