Buffer I/O Error ... End_request

[Zaki Akhmad <zakiakhmad@gmail.com>]

Hello,

After I chose my Debian on grub, there's message like this:

...
Buffer I/O error on device sr0, logical block 358650
End_request: I/O error, dev sr0, sector 1434600
...

Can somebody help me, what does it mean? Thanks!

-- 
Zaki Akhmad