end_request: I/O error, dev sr0, sector...

[LilyAyanami]

I just upgraded to 8.10 using the Synaptic Package Manager. I'm getting the following error when I boot with a disk in the CD/DVD drive.

end_request: I/O error, dev sr0, sector 216176
Buffer I/O error on device sr0, logical block 54044

The following is an excerpt from kern.log:

Nov 2 07:15:00 Melchior kernel: [ 27.942989] sr 4:0:0:0: [sr0] Sense Key : Medium Error [current]
Nov 2 07:15:00 Melchior kernel: [ 27.942991] sr 4:0:0:0: [sr0] Add. Sense: L-EC uncorrectable error
Nov 2 07:15:00 Melchior kernel: [ 27.942994] end_request: I/O error, dev sr0, sector 216176
Nov 2 07:15:00 Melchior kernel: [ 27.942995] Buffer I/O error on device sr0, logical block 54044
Nov 2 07:15:00 Melchior kernel: [ 33.288241] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE,SUGGEST_OK

The error message repeats, but Ubuntu does eventually load. The error message stops when I eject the CD. I do not get the error message at all when I boot with an empty CD/DVD drive. However, the drive works after Ubuntu is loaded. I can read CDs and DVDs just fine.

I did not see this error in 8.04.

a) Is anyone else having this issue?
b) How can I resolve this issue?

System:
MB: ASUS M3A32-MVP Deluxe
CPU: AMD Phenom 9850 Quad-Core
Memory: 4GB
CD/DVD: Sony CD-RW/DVD-+RW DRU-840A

Thank you very much!

[bluesxman]

I'm seeing this too, following upgrade to 8.10. Same symptoms, remove the CD, system boots fine.

[lisati]

I had a similar message when getting ready for a fresh install on my laptop. The installation seems to have worked, and I haven't seen it since.

[panfist]

I had the same errors, installation complete now, and everything seems OK but I am still worried.

edit:
I forgot to mention, installing via a SATA optical drive didn't work. It would hang indefinitely after I selected the language and pressed enter to install. I had to plug in an old IDE drive, and it worked, after the IO errors.

[bartruji]

Same error with 8.10 as well.

[TAGJM]

Me too.. and my USB Wireless Network Adapter is not working now too. Switched to XP to check out the forums. Being a complete Newb to Linux OS - I dont know where to look to fix the USB Network Adapter problem. Any suggestions?

[zeisel]

I am having the same problem. Is there a problem with the new ISO image (I downloaded it)? The error I'm getting is:

126.083412: end_request: I/O error, dev sr0 sector 1431176
126.08467: Buffer I/O error on device sr0, logical block 178897

I've also burned through 5 cd's with the same errors each time.

I've also changed out both my SATA HD with and IDE and CD/DVD drive for another.

Does someone with a bigger brain that I have know what might be the challenge?

[SteelGuy21]

I'm having the same i/o error. System locks up after I get the error. This is a new install with a SATA HD. Thought it could be BIOS setting but I've been through there several times. Could this just be an issue with a new installation onto a SATA drive?

[whatteaux]

This might be similar to what has been reported as a bug for several months now:
https://bugs.launchpad.net/ubuntu/+s...ux/+bug/304954

...but with no sign of a fix or resolution yet.

[alexdrudi]

SOLVED

http://ubuntuforums.org/showthread.php?t=1015569

always add "solved" in your Google search query