Error while installing Ubuntu 9.04

[bunty82]

yesterday while tring to install Ubuntu 9.04. I got these errors(logs are in images).
and i ended up into the prompt mode with unprivileged user mode.
Also while installing from the live cd mode i got the error .

[Lakshmipathi]

I have found these tow links - similar to your issue

Ubuntu Forums - View Single Post - [ubuntu] Buffer I/O error on device sr0, logical block
https://answers.launchpad.net/ubuntu/+question/10811

[MikeTbob]

It might be a bad burn on the Disc you created. Can you try to create a new one?

[D-cat]

Yeah, this is definitely hardware. First, burn a new disc as slow as your writer will allow. If that doesn't produce results, test your memory (it's one of the options on the boot CD). If memory passes (or you can't even get that far), see if you can test the new CD in another computer. If the CD is good, look for a new CD/DVD drive on the machine you're installing to. If the new slow-burn CD is bad even, make sure you're not using the cheap media (blue face), good media can make a difference. Test the memory on the machine your burning from (I assuming it's a different computer, disregard if not), and assuming that passes, you'll need a new burner.

Edit: seeing as you have 2 burners on that machine, a new one is not likely necessary, just switch to the other one first. Also, I had a machine once that refused to boot Linux with both a CD and DVD burner installed, I had to unplug one. I'm not sure why, but that might be something to try if all else fails.

Did I leave something out guys?

[rokytnji]

Did I leave something out guys?

You covered a lot of bases as usual D-cat. All I can think of is running a lens cleaner cd also maybe.

[MikeTbob]

You covered a lot of bases as usual D-cat. All I can think of is running a lens cleaner cd also maybe.

Do those things really work? I have never even tried one.

[rokytnji]

Do those things really work?

Yep. I have used a Philips $4.99 Lens cleaner. The cd comes with real small brushes on it. It is made to work with Windows media player though. In Linux I just let it spin like a bat out of hell for just a few seconds and eject it. I live out in the desert Tbob where it is real windy and dusty. So yeah it works for me.

[MikeTbob]

Yep. I have used a Philips $4.99 Lens cleaner. The cd comes with real small brushes on it. It is made to work with Windows media player though. In Linux I just let it spin like a bat out of hell for just a few seconds and eject it. I live out in the desert Tbob where it is real windy and dusty. So yeah it works for me.

Good to know rokytnji, I have always wondered if they work......I have only used the disk cleaner and not the drive cleaner. Do you have to launch a media player to make it spin long enough,,,or does it auto spin?

[rokytnji]

In Linux the cdplayer spins like it is doing a burnout. No need to install windows media player. I don't know why that is but that is how it works for me in Ubuntu, Antix, Mint Fluxbox RC1. The brushes make a hum in the cdrom while running in Linux it is spinning so fast, while in Windows Media Player ,(on my wifes laptop), it plays like a VCD movie, nice and slow. Even in media player it only runs for about 30 to 45 seconds. So in Linux I only let it spin for 2 or three seconds.

[D-cat]

The one I have is an audio CD. Basic idea is it plays a track with instructions, then it's manipulated so when you jump to the next two tracks, the lense will pass under the brushes. Works pretty good.