could not find a bounce buffer
ginlin at nexcom.com.tw
Fri Nov 26 01:09:01 CET 2004
Yes, I think I need to set CONFIG_ROM_STREAM=1 in order to have it boot
from my FILO payload which then will go load the image in a IDE drive.
I got an error when it ties to get_bounce_buffer in elfboot, Don't know
if you have the same problem. I dumped out the mem entries info. Looks
like the 2 mem entries are all LB_MEM_TABLE(ram config tables to be kept
in). So there is no LB_MEM_RAM, (where everyone could use) to allocate
the bounce buffer from.
Wrote the mp table end at: 00000020 - 000001f4
Wrote linuxbios table at: 00000500 - 00000be4 checksum 18e1
mem entry1: type=0x10, start=0, size=0xc4c
mem entry2: type=0x10, start=0xf0000, size=0x400
Could not find a bounce buffer...
Cannot Load ELF Image
From: Greg Watson [mailto:gwatson at lanl.gov]
Sent: Thursday, November 25, 2004 11:43 PM
Cc: linuxbios at clustermatic.org
Subject: Re: boot linux from an ide
If FILO is a payload in flash, then you need to set CONFIG_ROM_STREAM=1
and CONFIG_ROM_STREAM_START to the address you want to start looking
for the payload ELF header (usually just after the LinuxBIOS image).
CONFIG_IDE_STREAM is used to load a payload (such as FILO) from an
attached IDE device. This is useful if the flash is not large enough to
hold LinuxBIOS+payload, but is probably not what you are looking for.
Sorry for the confusion.
On Nov 25, 2004, at 5:40 AM, Gin wrote:
> I use FILO as the payload to boot from a Hard Disk, which has a
> installed linux on it. I noticed if I enabled the ide stream. It tries
> to read the ELF header from my IDE drive. But I thought the FILO
> should be the one to load the image from the IDE drive. When does it
> come in and play the role?
> Anyone can explain the flow of booting if I try to load the INSTALLED
> linux from a IDE drive.
> Linuxbios mailing list
> Linuxbios at clustermatic.org
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