I'd had a similar problem with a 2.5 kernel from late nov
or early dec. I had to comment out the follow code from
init/main.c::do_basic_setup() to get it working. I also
had to apply the head.S and <board>_setup.c file as
already mentioned in this thread. I also played with devfs
support but don't remember if either enabled or disabled was
required. I never followed up on this, but I suspect this
is a bad kludge and that there is a better way to solve this
problem. Let me know if this works for you.
718 #if 0
719 #ifdef CONFIG_BLK_DEV_INITRD
720 root_mountflags = real_root_mountflags;
721 if (mount_initrd && ROOT_DEV != real_root_dev
722 && MAJOR(ROOT_DEV) == RAMDISK_MAJOR && MINOR(ROOT_DEV) ==
0) {
723 int error;
724 int i, pid;
725
726 pid = kernel_thread(do_linuxrc, "/linuxrc", SIGCHLD);
727 if (pid>0)
728 while (pid != wait(&i));
729 if (MAJOR(real_root_dev) != RAMDISK_MAJOR
730 || MINOR(real_root_dev) != 0) {
731 error = change_root(real_root_dev,"/initrd");
732 if (error)
733 printk(KERN_ERR "Change root to
/initrd: "
734 "error %d\n",error);
735 }
736 }
737 #endif
738 #endif
S?bastien C?t? wrote:
>
> "Mark A. Greer" wrote:
> >
> > Where did you get this version of that kernel? From the MontaVista CDK or
> > from
> > the website? If from the website, when did you get it?
>
> I'm pretty sure it came from the web.. I think it was downloaded at the
> end of November but I can't be sure... I could probably answer this
> next week.
>
> > Try this (if its not already done). Go into arch/ppc/boot/head.S and add
> > the
> > following lines after the set up of r6 to hold the cmd_line.
> >
> > /* r4,r5 have initrd_start, size */
> > lis r2,initrd_start at h
> > ori r2,r2,initrd_start at l
> > lwz r4,0(r2)
> > lis r2,initrd_end at h
> > ori r2,r2,initrd_end at l
> > lwz r5,0(r2)
> >
> > Go into arch/ppc/kernel/sandpoint_setup.c. Find sandpoint_setup_arch() and
> > add
> > something like (again, if its not already there).
> >
> > #ifdef CONFIG_BLK_DEV_INITRD
> > if (initrd_start)
> > ROOT_DEV = MKDEV(RAMDISK_MAJOR, 0);
> >
> > #endif
> >
>
> I tried that patch that I found in the list archives but it didn't make
> any difference.
>
> S?bastien C?t?
>
--
Michael Pruznick, michael_pruznick at mvista.com, www.mvista.com
MontaVista Software, 1237 East Arques Ave, Sunnyvale, CA 94085
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