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Re: static linking and iso9660fs

From: James Morrison
Subject: Re: static linking and iso9660fs
Date: Wed, 3 Sep 2003 21:36:57 -0400 (EDT)

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> Date: Tue, 2 Sep 2003 19:30:50 +0100 (BST)
> From: Greg Buchholz <>
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> On Tue, 2 Sep 2003, Marco Gerards wrote:
> > Why do you need this?  If you boot from an el torito bootable CDROM
> > you can put GNUMach, isofs.static, and exec on the boot image
> > (IIRC that is all that is needed).  But having GRUB reading the disk
> > is the right way, but unfortunately it isn't supported by GRUB yet
> > (officially).
>       I haven't been able to get that to work so far.  Or, more
> precisely, here's the latest failure I've had.  I make an El-Torito HD
> image with a copy of grub, iso9660fs.static, and gnumach.gz on it.  This
> boot image gets put inside the iso with the rest of the system on it.  My
> grub "menu.lst" looks like this...
> timeout 60
> default 0
> #Entry #0
> title  GNU/Hurd
> uppermem 523648
> root   (hd0,0)
> kernel /boot/gnumach.gz root=device:hd2s1
> module /hurd/iso9660fs.static
> --multiboot-command-line=${kernel-command-line}
> --host-priv-port=${host-port} --device-master-port=${device-port}
> --exec-server-task=${exec-task} -T typed ${root} $(task-create)
> $(task-resume)
> module /lib/ /hurd/exec $(exec-task=task-create)
> ...When the CD boots, grub starts up fine, and gnumach boots without
> problem.  After Mach boots I get the following messages on screen...
> 2 multiboot modules
> task loaded: /hurd/iso9660fs.static --multi-boot-command-line yada,yada...
> task loaded: /lib/ /hurd/exec
> start /hurd/iso9660fs.static: /hurd/iso9660fs.static: device: hd2s1:
> Invalid argument
> ...I should also note that I've got two IDE harddisks (hd0,hd1) and two
> IDE cd drives (hd2,hd3) in the system.  The "Invalid argument" occurs no
> matter what drive I have specified on the...

 Since the cdrom aren't partitioned you should be using hd2 or hd3 directly.

> kernel /boot/gnumach.gz root=device:hd2s1
 Try root=device:hd2

> ...line.  I've tried hd0s1, hd0, hd2s1, hd2, etc.  My initial thought was
> that this was caused by the cd drive not being recognized by grub or Mach
> as a real disk.  But it could also be caused by iso9660fs.static not
> understanding boot arguments correctly (although my initial impression
> was iso9660fs.static just might work without needing modifications).
>       Anyway, I'd thought I'd tackle the booting problem before I dive
> into creating a hurdish ramdisk thingy.
> Greg Buchholz


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