Cd Or Dvd Drive Problems - IBM BladeCenter JS21 Types 8844 Service Manual

CD or DVD drive problems

v Follow the suggested actions in the order in which they are listed in the Action column until the problem
is solved.
v See Chapter 3, "Parts listing, Types 7988 and 8844," on page 137 to determine which components are
CRUs and which components are FRUs.
v If an action step is preceded by "(Trained service technician only)," that step must be performed only by a
trained service technician.
Symptom
The CD or DVD drive is not
recognized.
A CD or DVD is not working
correctly.
The CD or DVD drive tray is not
working.
The CD or DVD drive is
detected as /dev/sr0 by SUSE
LINUX. (If the SUSE LINUX
operating system is installed
remotely onto a blade server
that is not the current owner of
the media tray [CD or DVD
drive, diskette drive, and USB
port], SUSE LINUX detects the
CD or DVD drive as /dev/sr0
instead of /dev/cdrom.)
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BladeCenter JS21 Types 7988 and 8844: Problem Determination and Service Guide
Action
1. Make sure that:
v All cables and jumpers are installed correctly.
v The correct device driver is installed for the CD or DVD drive.
2. Reseat the CD or DVD drive.
3. Replace the CD or DVD drive.
1. Clean the CD or DVD.
2. Reseat the CD or DVD drive.
3. Replace the CD or DVD drive.
Note: The blade server must have ownership of the CD or DVD drive.
1. Insert the end of a straightened paper clip into the manual tray-release
opening.
2. Reseat the CD or DVD drive.
3. Replace the CD or DVD drive.
Establish a link between /dev/sr0 and /dev/cdrom as follows:
1. Enter the following command:
rm /dev/cdrom; ln -s /dev/sr0 /dev/cdrom
2. Insert the following line in the /etc/fstab file:
/dev/cdrom /media/cdrom auto ro,noauto,user,exec 0 0