Arjan Van Leeuwen wrote:
On Thu, 09 Dec 2004 14:24:35 +0900, Rob <[EMAIL PROTECTED]> wrote:
Hi,
In /boot/loader.conf, I have
hw.ata.ata_dma="0"
to prevent a WRITE_DMA failure crash at bootup.
Unfortunately, this forces my UDMA100 harddisk to operate
at PIO4 speed.
There are patches flying around on this mailing list that might
solve the problem. I'm very keen on testing such patches, but I
should remove the line in loader.conf. However, if the patch does
not work, I end up with an unbootable disk.
It would be nice if I can set hw.ata.ata_dma="0" at the loader
prompt during bootup, so that the system at least will boot from
harddisk. Is that possible?
I'm not sure if I understand what you want, but you can use eg
'atacontrol mode <channel> udma33 udma33' to set your hard drive to
UDMA-33 after the system has booted.
No, that's no option. The situation is this: I have a harddisk with FreeBSD
5.3, which fails to boot. It would boot if I had hw.ata.ata_dma="0" in
/boot/loader.conf; however, that file is empty, so the bootup crashes
with a WRITE_DMA failure when the kernel loads.
I can get at the bootloader prompt during the boot. What I want to know is:
can I type something here that has the same effect as hw.ata.ata_dma="0" in
/boot/loader.conf? Then I can continue loading the kernel.
Thanks,
Rob.
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