On Tue, Aug 2, 2011 at 5:21 PM, Shao Miller <[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 149b502306f7b5f7cc9d90cf2095f8**dc6576375f >>> Author: Michael Brown <[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. > >> 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]> >> 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. > > What version of GRUB and does a simple commandline work?: > > kernel /ipxe.lkrn config > Tried it with: kernel /ipxe.lkrn shell still not joy. Grub version 0.97-13.5 from Centos 5.
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