Re: Suse hangs at bootup after switching to DMA mode.

From: prg (rdgentry1_at_cablelynx.com)
Date: 04/03/05 

Date: 3 Apr 2005 07:13:33 -0700

Ayane_Fan wrote:
> I did something silly, I'll admit it. I installed Suse 9.2 and tried
> to turn on DMA from YaST and the system froze. Now, when booting,
the
> bootup sequence will always hang after hdc (Linux partition) sets
> itself into DMA mode. I am unable to boot even if I try ide=nodma at
> the boot screen and Failsafe mode will not override this setting
> either.
>
> I booted with the floppies and went info repair mode but I can't find
> the location in the filesystem to change the DMA from ON to OFF.
>
> Any suggestions???
>
> Ayane_Fan.

$ man hdparm

and read especially the -d and -X options

Not familiar with the details of Yast, so have no idea just where/how
the setting change you made is stored and applied. Probably a good
idea to find out and "correct" it.

Don't be casual with hdparm, as it can _really_ mess up a hard drive if
you're careless.

You may want to google your Suse 9.2/hard drive/mother board combo to
check for any known gotchas. A BIOS update may be in order also.

You can read the man page here:
http://www.die.net/doc/linux/man/man8/hdparm.8.html

hth,
prg

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