From owner-freebsd-stable@FreeBSD.ORG  Wed Dec  8 17:38:23 2004
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From: Lapo Nustrini <lapo@seanet.com>
Date: Wed, 8 Dec 2004 09:38:48 -0800
To: crucio2004-freebsd@yahoo.com
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cc: freebsd-stable@freebsd.org
Subject: Re: trouble installing 5.3 on soekris net4801
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Have you tried booting up in safe mode?
I have a similar issue running 5.3 STABLE on a machine which runs fine 
with 5.3 BETA7.

Booting into safe mode works fine.  Any other way, and it gets ATAPI 
errors or SCSI errors (if I take all ATAPI stuff out of the kernel).

Still trying to find the real source of the problem...

Good luck,

Lapo


On Dec 7, 2004, at 8:31 PM, Crucio wrote:

> I am unable to install FreeBSD 5.3-RELEASE on my
> Soekris net4801, which has a SanDisk Ultra II 512MB
> Compact Flash card as a hard drive. The kernel probes
> the drive just fine but when it comes time to write or
> read from the drive, specifically in sysinstall, I
> get;
>
> ad0: TIMEOUT - READ_DMA retrying (2 retries left)
> LBA=0
> ad0: FAILURE - READ_DMA timed out
> ad0: TIMEOUT - READ_DMA retrying (2 retries left)
> LBA=0
> ad0: FAILURE - READ_DMA timed out
> ad0: TIMEOUT - READ_DMA retrying (2 retries left)
> LBA=0
> ad0: FAILURE - READ_DMA timed out
> ad0: TIMEOUT - READ_DMA retrying (2 retries left)
> LBA=1
> ad0: FAILURE - READ_DMA timed out
>
> Then sysinstall says;
>
> "ERROR: Unable to write data to disk ad0!"
>
> To do this manually, with fdisk, disklabel and newfs
> works up until the computer has rebooted and tries to
> load the root filesystem. It hangs for a little while
> then starts spitting out those READ_DMA errors and
> finally refuses to mount ad0s1a as root.
>
> Disabling DMA in loader.conf doesn't seem to have any
> effect.
>
> Any ideas here would be much appreciated.
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