[Bug 40851] Ubuntu Live Flight 6 boot hang

[Guy Stone]

Public bug reported:

Burned to CD, and verified MD5 using Win. Booted in self-test mode with
no errors.

Then normal boot. Hangs during X initialization with mouse cursor
visible. Last messages showing are (on Ctl-Alt-F1 screen)

Starting Hardware abstraction layer hald
hdc: timeout waiting for dma
hdc: drive not ready for command
Buffer I/O error on device hdc logical block 35196
<above line repeated for each block through 35205>
VFS: brelse: trying to free buffer
VFS: brelse: trying to free buffer
VFS: brelse: trying to free buffer
SQUASHFS error: sb-read failed reading block 0xebbb
SQUASHFS error: Unable to read page, block 3992687 size 71ed
uhn-parts<?>: /etc/dbus-1/eventid/20hal exited with return code 2

Cannot get any additional output via dmesg, lspci, etc as keyboard not
enabled.

I don't expect anyone to be able to repeat this exactly, as
1) the same CD boots on other systems
2) another burn of this same release boots on this system
But there's something about reading a CD during booting that's less robust than reading it under Win or booting into self-test

** Affects: linux-source-2.6.15 (Ubuntu)
       Severity: Normal
       Priority: (none set)
         Status: Unconfirmed

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Ubuntu Live Flight 6 boot hang
https://launchpad.net/bugs/40851