Re: Linux crashing often
On Sun, 20 Nov 2005, Alex Goldman wrote:
> 1. ran memtest86 for 15 minutes, it found no errors (I think the whole
> test suite may take hours)
that is typically a waste of time, since you cannot do anythign else
whiles is bz pretending to diag your system ( that used to work )
> 2. ran dd if=/dev/hda of=/dev/null, which finished without errors
reading from a system that shows problems is a bad idea, in that
it may aggrevate the problem
or can can show you can read, like you were able to do, murphy is on your
side this time
> 3. tried to run fsck on /home, but it doesn't do anything useful, just
> returns immediately, saying the file system (ext3) is "clean"
umount /home
e2fsck /dev/home whatever partition number /home was
- it should take a few seconds and longer if you have it populated
> 4. tried to remount / read-only to run fsck on it too, but "/ is
> busy", and even then it's also ext3, so fsck probably wouldn't be
> useful
use a standalone disk ( cd ) if you don't want to wipe out your disk
> QUESTIONS:
> How long is memtest86 supposed to take per Gig?
waste of time ...
> How to test other hardware, especially the hard drive, motherboard?
one at a time
since the machine can survive the night in idle...
you probably have:
- bad cables
- bad cpu fan or loose heatsink
- bad power supply
- or memory stick that is running hot
( your case fans is missing or dying or dead )
> How to perform useful checks on ext3?
e2fsck /dev/whatever .. but you have to be running from a standalone cd
or something other OS other tnan the one (disk) you are trying to test
> How to fsck the root partition? I can't remount it ro, because it's busy.
nothing special about "root" vs /var, /home, /usr ...
or whatever you did to the fs
c ya
alvin
Reply to: