[Bug 545659] [NEW] Lucid beta 1 booting from cd hangs at blank screen

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After the menu to select booting without modification, I get a text
splash screen with a purple background and white text saying "Ubuntu
10.04", and four periods alternating between white and orange.  No logo.

After a while, an error message prints in the middle of that splash
screen, right after the periods:

"init: unreadahead-other main process (944) terminated with status 4"

This repeats for processes 945 and 946.

Then it says:
"[  142.316103] codec_read: codec 0 is not valid..." and the rest is cropped off in my photo, sorry.
It repeats 2 more times, both in 142.3*.

Then the screen goes entirely black (not off).

Right about when the CD stops seeking, it looks like the video mode
changes - blank, to off, to blank (black) again.

The (USB) keyboard is unresponsive - LEDs won't respond.

Pushing the power button once briefly gets it to spit out the CD, so
something is still working.

I have not yet tried verifying the CD, I plan to do that overnight.

This is on a computer I have been using regularly booted off the Karmic
CD for a while, and am submitting this bug from.

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: lucid
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Lucid beta 1 booting from cd hangs at blank screen
https://bugs.launchpad.net/bugs/545659
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