On 8/3/2011 01:27, Larry Brigman wrote:
On Tue, Aug 2, 2011 at 5:21 PM, Shao Miller
<[email protected] <mailto:[email protected]>> wrote:
On 8/2/2011 20:02, Andrew Stuart wrote:
On 8/2/2011 2:13 PM, Larry Brigman wrote:
I have a grub line for ipxe but it's not processing the
cmdline as it
thinks there is nothing there (see attached screen shot).
I'm using the main git repo with the last commit of:
commit 149b502306f7b5f7cc9d90cf2095f8dc6576375f
Author: Michael Brown <[email protected]
<mailto:[email protected]> <mailto:[email protected]
<mailto:[email protected]>>>
Date: Sat Jul 16 01:29:20 2011 +0100
Some clues on how to troubleshoot this issue?
While I don't have any sound troubleshooting advise for you, I
am curious if the following commit may have broke something
(for you).
My git-fu is non existent, but I am curious if you were to
roll back
previous to that commit, if it would change anything.
Also, since it appears relevant to your use, it might indicate
where you can add some extra debug information to see what's
going on.
I've added a little but it doesn't seem to tell me anything since it
just says zero length.
Just to clarify: You've responded to Andrew Stuart's post there, but
also confirmed my guess down below. Thanks. :)
Mind you, I am a lurker/tinkerer. Doing as I suggest may very
well kill
your [cat|dog|fish|child|significant other].
...
commit be600ed9967d93f5012d5277d7ce8c e89d135918
Author: Michael Brown <[email protected] <mailto:[email protected]>>
Date: Tue Jun 28 11:29:28 2011 +0100
[prefix] Cope with BOOT_IMAGE= anywhere within command line
Some bootloaders seem to add "BOOT_IMAGE=..." at the end of the
command line; some at the start. Cope with either variation.
...
Woo-hoo! What a nice feature. :)
One of the files involved is ipxe/src/arch/i386/core/ cmdline.c.
Your screen-shot, Larry, shows:
CMDLINE found ""
which is a message that comes before the "BOOT_IMAGE=..." stripping.
It might be interesting to add some temporary debugging code to
show the 'len':
static void cmdline_init ( void ) {
...
size_t len;
/* Do nothing if no command line was specified */
if ( ! cmdline_phys ) {
DBGC ( image, "CMDLINE found no command line\n" );
return;
}
cmdline_user = phys_to_user ( cmdline_phys );
len = ( strlen_user ( cmdline_user, 0 ) + 1 /* NUL */ );
DBGC ( image, "CMDLINE is %zd bytes\n", len );
/* Allocate and copy command line */
...
However I would guess that it'd show 0.
That guess.
What version of GRUB and does a simple commandline work?:
kernel /ipxe.lkrn config
Tried it with:
kernel /ipxe.lkrn shell
still not joy.
Ok. I was partly wondering if GRUB might've gotten jumbled up while
parsing the command-line, either due to its length or due to the
operators. I guess not (assuming "no joy" means "same debugging
output"). :(
Grub version 0.97-13.5 from Centos 5.
Well now it is hopefully reproducible by another person, at least.
- Shao Miller
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