[colug-432] dmesg

[Rick Hornsby]

On Jan 27, 2013, at 22:07 , Thomas Cranston <thomas.w.cranston at gmail.com> wrote:

> I am looking in dmesg for errors related to I/O errors. What do I look
> for that indicates I/O errors?
> Will I see the words "I/O errorr"?

Something like that.  You may see variations of things like "read error" or "seek error" as well.  Specifically, the messages will be regarding your disk - /dev/sda*.  

> In /var/log I see
> 
> dmesg
> dmesg.0
> dmesg.1.gz thru dmesg.4.gz
> 
> dmesg is newest, and dmesg.4.gz is oldest?

yep.  You should also look in /var/log/messages.  It is likely that hardware issues will be indicated in both places.