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LinseyGiles
n00b
Joined: 19 Nov 2005
Posts: 2
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 Posted: Sat Nov 19, 2005 3:12 pm Post subject: genkernel booting woes [solved] |
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Hi,
I'm having real trouble getting a mini mac to boot up. It's almost there - (after almost a day at it !).
I've built a genkernel to get me going (as I thought it would be easier !)
The system starts to boot, but then the kernel panics with the following message
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(1,0)
My yaboot.conf looks as follows
boot=/dev/hda2
device=/pci@f4000000/ata-6@d/disk@0:
partition=4
root=/dev/hda4
timeout=30
install=/usr/lib/yaboot/yaboot
magicboot=/usr/lib/yaboot/ofboot
defaultos=Linux
delay=10
ofboot=hd:2
image=/boot/kernel-genkernel-ppc-2.6.12-gentoo-r6
label=Linux
partition=4
read-only
append="root=/dev/ram0 init=/linuxrc real_root=/dev/hda4 vga=791 splash=silent video=radeonfb:1280x1024-32"
and I have the following files in /boot
System.map-genkernel-ppc-2.6.12-gentoo-r6
initramfs-genkernel-ppc-2.6.12-gentoo-r6
kernel-genkernel-ppc-2.6.12-gentoo-r6
kernelz-2.6.12-gentoo-r6
I've got the partitions setup so that according to mac-fdisk /dev/hda they look as follows
/dev/hda1 Apple_partition_map
/dev/hda2 Apple_Bootstrap
/dev/hda3 swap
/dev/hda4 root
Trogging though the forums has not helped much on this one (but it has got me this far), so what am I missing ??????
Cheers
Linsey
Last edited by LinseyGiles on Sun Nov 20, 2005 4:10 am; edited 1 time in total |
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skoorbevad
n00b
Joined: 13 Jan 2003
Posts: 27
Location: Atlanta, GA
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| Posted: Sat Nov 19, 2005 5:34 pm Post subject: |
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It's definately a kernel issue, but consider the following:
/etc/yaboot.conf:
| Code: |
## 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
ofboot=hd:2
boot=/dev/hda2
#device=/pci@f4000000/ata-6@d/disk@0:
device=hd:
partition=4
root=/dev/hda4
timeout=30
install=/usr/lib/yaboot/yaboot
magicboot=/usr/lib/yaboot/ofboot
image=/boot/vmlinux
label=Linux
root=/dev/hda4
partition=4
read-only
enableofboot
enablecdboot
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Edit the image= and partition= to suit your particular configuration.
Also, make sure the following values are set in /usr/src/linux/.config:
| Code: |
CONFIG_PPC_PMAC=y
CONFIG_BLK_DEV_IDE_PMAC=y
CONFIG_BLK_DEV_IDE_PMAC_ATA100FIRST=y
CONFIG_BLK_DEV_IDEDMA_PMAC=y
CONFIG_BLK_DEV_IDE_PMAC_BLINK=y
CONFIG_IDE_GENERIC=y
CONFIG_BLK_DEV_IDEPCI=y
CONFIG_BLK_DEV_GENERIC=y
CONFIG_BLK_DEV_IDEDMA_PCI=y
CONFIG_IDEDMA_PCI_AUTO=y
CONFIG_PARTITION_ADVANCED=y
CONFIG_MAC_PARTITION=y
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Look in your .config to make sure, if they arent set you can run genkernel with the '--menuconfig' option and search through the menus yourself to make sure they're set.
Alternatively, if you can get your hands on the 2.6.14-gentoo-r2 source (should be obtained by 'emerge gentoo-sources', as of today) you can downlod the eact kernel .config I used for my Mac Mini right here. Download it and rename it to /usr/src/linux/.config, then 'cd /usr/src/linux && make && make modules_install'. Copy the resulting /usr/src/linux/vmlinux into /boot, edit your /etc/yaboot.conf accordingly, run 'ybin -v', reboot and enjoy.
Note: My kernel .config doesn't include support for sound or AGP since I'm only using my Mini to serve files and web pages in a headless configuration. Running 'make menuconfig' in /usr/src/linux will let you add that stuff in -- just look for agpgart and compile in basic sound support as a module.
Hope this helps. |
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LinseyGiles
n00b
Joined: 19 Nov 2005
Posts: 2
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| Posted: Sun Nov 20, 2005 4:10 am Post subject: |
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I've kind of solved this now - unfortuantly emerging the kernel again didn't give me the newer kernel, however using [url]http://aaltonen.us/archive/2005/02/11/linux-on-the-mac-mini/ I managed to get it to boot. No networking yet - but it has booted properly so it's probably just a module issue.
Thanks all.
Lins[/url] |
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marelven
n00b
Joined: 11 Jun 2005
Posts: 15
Location: Montreal, Canada
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| Posted: Wed Mar 01, 2006 11:37 am Post subject: |
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Hi everyone,
I wanted to thank skoorbevad for his help, especially the .config sample.
I had the same problem as LinseyGiles and the code below helped me a lot ! 
| Code: | CONFIG_PPC_PMAC=y
CONFIG_BLK_DEV_IDE_PMAC=y
CONFIG_BLK_DEV_IDE_PMAC_ATA100FIRST=y
CONFIG_BLK_DEV_IDEDMA_PMAC=y
CONFIG_BLK_DEV_IDE_PMAC_BLINK=y |
It's you guys who make using Gentoo such a pleasure. |
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JoseJX
Developer
Joined: 28 Apr 2002
Posts: 2620
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marelven
n00b
Joined: 11 Jun 2005
Posts: 15
Location: Montreal, Canada
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| Posted: Wed Mar 01, 2006 8:06 pm Post subject: |
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Hi,
Well, I did a make defconfig before I started configuring my kernel.
And yes, I did deactivate the CONFIG_PPC_PMAC option because, until skoorbevad's post, I didn't think it was appropriate since I own a MacMini and not a PowerMac.
But honestly, the name of this option can be misleading.
Anyway, the problem is resolved and I learned a thing or two... |
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