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IBM BladeCenter Deployment Guide

HS40 from the local media tray will work, but it is recommended that the lowres option be used for the installation of AS2.1.

3.When booting from the remote floppy, the lowres (for RHAS2.1) or the nofb (for RHAS3.0) install mode should function correctly. There have been intermittent instances of no keyboard response.

4.When loading Linux on an HS40, after unmounting the diskette, it is possible that EFI may replace the “IBM Remote Disk” in the boot order, and the blade may boot into EFI instead of Linux. There is also a problem referenced in RETAIN tip H1822293 that results in the HS40 boot order being reordered. (http://www-1.ibm.com/support/docview.wss?uid=psg1MIGR-56325) If this occurs, follow the steps shown on page 17 to reorder the boot sequence.

5.When a blade boots and the media tray is assigned to during boot up, the floppy drive in the media tray is assigned as (in this example) /dev/sdc. However, since there is no diskette in the drive, we see the following errors (beginning at READ CAPACITY FAILED):

Nov 5 09:44:30 spencerooni kernel: hub.c: new USB device 00:0f.2-1.1, assigned address 3

Nov 5 09:44:30 spencerooni kernel: usb.c: USB device 3 (vend/prod 0x644/0x0) is not claimed by any active driver.

Nov 5 09:44:30 spencerooni kernel: hub.c: new USB device 00:0f.2-1.3, assigned address 4

Nov 5 09:44:30 spencerooni kernel: usb.c: USB device 4 (vend/prod 0x5ab/0x30) is not claimed by any active driver.

Nov 5 09:44:30 spencerooni kernel: Initializing USB Mass Storage driver...

Nov 5 09:44:30 spencerooni kernel: usb.c: registered new driver usb-storage

Nov 5 09:44:30 spencerooni kernel: scsi1 : SCSI emulation for USB Mass Storage devices

Nov	5	09:44:30	spencerooni	kernel:	Vendor: TEAC	Model: FD-05PUB		Rev: 2000
Nov	5	09:44:30	spencerooni	kernel:	Type: Direct-Access		ANSI SCSI revision: 02

Nov 5 09:44:30 spencerooni kernel: Attached scsi removable disk sdc at scsi1, channel 0, id 0, lun 0

Nov 5 09:44:30 spencerooni kernel: sdc : READ CAPACITY failed.

Nov 5 09:44:30 spencerooni kernel: sdc : status = 1, message = 00, host = 0, driver = 08

Nov 5 09:44:30 spencerooni kernel: Current sd00:00: sense key Not Ready

Nov 5 09:44:30 spencerooni kernel: Additional sense indicates Medium not present

Nov 5 09:44:30 spencerooni kernel: sdc : block size assumed to be 512 bytes, disk size 1GB.

Nov 5 09:44:30 spencerooni kernel: sdc: I/O error: dev 08:20, sector 0

Nov 5 09:44:30 spencerooni kernel: I/O error: dev 08:20, sector 0

Nov 5 09:44:30 spencerooni kernel: unable to read partition table

Now, that wouldn't be the end of the world, necessarily, However, ANYTIME the KVM is switched on the Bladecenter to/from that blade, the USB "stuff" (KVM and media tray) get re-hotplugged, for lack of a better term, and the sdc errors are generated. They occur even after switch the media tray owner to a different blade. The result is too many spurious errors which is making the internal support team cranky.

Modification 1: Do not boot blade with media tray assigned in order to avoid errors when

someone takes the media tray away AND when the floppy drive is empty. NOTE: "alias floppy off" should be added to modules.conf to avoid floppy drive errors when media tray not assigned on boot.

Version 3.0, 3/10/2006 http://w3-03.ibm.com/support/techdocs/atsmastr.nsf/WebIndex/WP100564 31

The BladeCenter Deployment Guide is intended as a personal productivity tool. It is not intended to be comprehensive and is provided for

guidance only, on an 'as is basis' without warranty of any kind. Please be aware that its contents have not been certified by IBM.