jwfoxjr at gmail
Aug 31, 2010, 12:17 PM
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Re: Re: New install - Unable to get my ppc Mac Mini to boot the root partition
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Mark,
Can you post your /etc/fstab? I just want to give it a once over.
Thanks.
Joe Fox
Systems/Network Administrator
Mobile# (716) 846-9308
http://twitter.com/JWFoxJr
On Tue, Aug 31, 2010 at 3:13 PM, Mark Knecht <markknecht [at] gmail> wrote:
> On Tue, Aug 31, 2010 at 12:07 PM, Mark Knecht <markknecht [at] gmail>
> wrote:
> > Hi all,
> > I have a Mac Mini that I've used for the last couple of years. I
> > was trying to get it up to date but at some point it failed with a
> > message about the main root partition not being an ext2 filesystem. I
> > took the opportunity to rebuild the machine from scratch, at this
> > point twice, but I continue to get the same message. I'm trying to
> > determine if something about the machine is completely hosed and the
> > machine will never work again or if it's just some problem I'm having.
> >
> > In these rebuiilds I went the direction of completely wiping the
> > hard drive and starting from scratch. I used mac-fdisk, hit 'i', had
> > only the Apple partition map, and then created the next 3 partitions
> > as per the install guide. The installs (both of them) went cleanly and
> > I didn't seem to have any problems running yabootconfig as far as I
> > can tell. No complaints from the software except for my typing a path
> > to the kernel incorrectly a couple of times. Once I got that right it
> > seemed to finish and created the yaboot.conf file below.
> >
> > When I attempt to boot the system finds the kernel, does all the
> > early boot stuff, says it finds /dev/hda and /dev/hda, then it starts
> > the init stuff with the green '*' and [OK] on the right until it wants
> > to mount the root partition. At that point it tells me the partition
> > is wrong, not ext2, and quits.
> >
> > I don't understand how the partition can be incorrect if it's good
> > enough to find the kernel to boot.
> >
> > Can someone set me right on what I might be doing incorrectly here.
> > If the info below isn't enough let me know what you need.
> >
> > Thanks,
> > Mark
> >
> >
> > livecd ~ # mac-fdisk /dev/hda
> > /dev/hda
> > Command (? for help): p
> > /dev/hda
> > # type name length base
> > ( size ) system
> > /dev/hda1 Apple_partition_map Apple 63 @ 1
> > ( 31.5k) Partition map
> > /dev/hda2 Apple_Bootstrap bootstrap 1600 @ 64
> > (800.0k) NewWorld bootblock
> > /dev/hda3 Apple_UNIX_SVR2 swap 2097152 @ 1664
> > ( 1.0G) Linux swap
> > /dev/hda4 Apple_UNIX_SVR2 root 154202672 @
> > 2098816 ( 73.5G) Linux native
> >
> > Block size=512, Number of Blocks=156301488
> > DeviceType=0x0, DeviceId=0x0
> >
> > Command (? for help): q
> > livecd ~ #
> >
> > livecd ~ # mount /dev/hda4 /mnt/gentoo/
> > livecd ~ # mount -t proc none /mnt/gentoo/proc
> > livecd ~ # mount -o bind /dev /mnt/gentoo/dev
> > livecd ~ # chroot /mnt/gentoo /bin/bash
> > livecd / # env-update
> >>>> Regenerating /etc/ld.so.cache...
> > livecd / # source /etc/profile
> > livecd / # export PS1="(chroot) $PS1"
> > (chroot) livecd / # ls -al /boot/
> > total 5064
> > drwxr-xr-x 2 root root 4096 Aug 28 16:51 .
> > drwxr-xr-x 19 root root 4096 Aug 31 10:17 ..
> > -rw-r--r-- 1 root root 0 Aug 22 03:50 .keep
> > lrwxrwxrwx 1 root root 1 Aug 28 15:23 boot -> .
> > -rwxr-xr-x 1 root root 5195929 Aug 31 09:31 kernel-2.6.34-gentoo-r1
> > (chroot) livecd / #
> >
> > (chroot) livecd / # cat /etc/yaboot.conf
> > ## yaboot.conf generated by yabootconfig 1.0.8
> > ##
> > ## run: "man yaboot.conf" for details. Do not make changes until you
> have!!
> > ##
> > ## For a dual-boot menu, add one or more of:
> > ## bsd=/dev/hdaX, macos=/dev/hdaY, macosx=/dev/hdaZ
> >
> > boot=/dev/hda2
> > device=/pci [at] f400000/ata-6@d/disk@0:
> > partition=4
> > root=/dev/hda4
> > timeout=30
> > install=/usr/lib/yaboot/yaboot
> > magicboot=/usr/lib/yaboot/ofboot
> >
> > image=/boot/kernel-2.6.34-gentoo-r1
> > label=Linux
> > read-only
> > (chroot) livecd / #
> >
>
> The messages on the screen when trying to boot are:
>
> * Checking root filesystem
> ext2fs_check_if_mount: Can't check if filesystem is mounted due to
> missing mtab file while determining whether /dev/da4 is mounted.
> fsck.ext3: No such file or directory while trying to open /dev/hda4
> /dev/hda4:
> The superblock could not be read or does not describe a correct ext2
> filesystem.
> <snip>
>
> * Filesystem couldn't be fixed. :(
>
> - Mark
>
>
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