IBM BladeCenter T Type 8730 Hardware Maintenance Manual page 101

Table 6. Troubleshooting charts (continued)
Device
"Media not found" error
message and other file
system error occur on a blade
server running Linux or DOS.
Linux does not install from
the BladeCenter T CD-ROM
drive or will not start
afterward.
Suggested action
Attempting to access the mounted CD-ROM drive (media tray) after it has been
switched to another blade server results in I/O errors, even if the media tray has been
switched back.
Note: Because the BladeCenter T unit uses a USB bus to communicate with the
media tray devices, switching ownership of the media tray to another blade server is
the same as unplugging a USB device.
v If a blade server tries to access the CD-ROM after it has been switched to another
blade server, a "Media not found" error occurs.
v If a blade server is running a DOS environment, such as when updating firmware
on the blade server, the firmware can be interrupted or corrupted when the media
tray is switched away; you might need to call for service on the blade server.
v If a file handle was left open by switching the media tray away, the system
administrator will not be able to do a clean unmount (umount command) unless the
unmount is forced by umount command parameters ("lazy umount").
v If the system administrator is sharing out the CD-ROM drive for multiple users, that
network share is broken.
Before switching ownership of the media tray to another blade server, ensure that the
CD-ROM drive is not mounted for the current blade server owner (check for open file
handles and sharing out). If a firmware update is taking place on the blade server, do
not switch the media tray to another blade server.
v If you try to install Red Hat Linux to the blade server IDE drive, Linux does not
install.
v If you try to install Red Hat Linux to the SCSI drive on a blade server expansion
unit, Linux appears to install but the operating system will not start properly.
v If you try to install SuSE Linux, Linux does not install.
Download the latest operating system installation instructions for your operating
system from the IBM Support Web page at http://www.ibm.com/pc/support/. The
necessary workaround is described in the instructions for your operating system.
Chapter 6. Symptom-to-FRU index
91