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Old 15th January 2011, 05:48 PM
Wijedora Offline
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Join Date: Jan 2011
Posts: 1
Fedora won't boot. Kernel derefs NULL pointer.


I have a system with two HDs. The first has XP on it and the second has Win7(64) and Ubuntu 10.04. The BIOS is set to boot from the 2nd HD as I never use XP really. Win7 was installed before Ubuntu 10.04 so it automatically had GRUB2 allowing selection of all the OSs.

Anyway, I popped in the Fedora 14 DVD 32bit and tried to install. I asked it to halve the size of the Ubuntu partition and install Fedora on that. It seemed to do that OK.

GRUB2 however didn't pick up the Fedora installation. After a bit of searching I installed the lvm package on Ubuntu and configured GRUB to preload lvm (Fedora partition was LVM2, not something I'm familiar with.) After an os-probe and an update-grub Fedora appeared at the bottom of the OS list on next boot.

I selected it and let Fedora start up. However the progress bar stalled right near the end. Eventually the small Fedora logo appeared but the system was completely unresponsive. After leaving it for an hour just in case I rebooted back to Ubuntu. I reconfigured the Fedora entry in grub.cfg to not be quiet and pop up the text. Here's what appear to be the relevant bits that appeared:

sk2 0000:04:00.0 eth0: enabling interface
BUG: unable to handle kernel NULL pointer dereference at 00000021
IP: [<f843fc00>] fib_walk_continue+0x48/0x117 [ipv6]
*pde = 7e484067
Oops: 0000 [#2] SMP
last sysfs file: /sys/deveices/pci0000:00/0000:00:1c.4/0000:04:00.0/net/eth0/ifindex
Modules linked in: ipv6(+) cpufreq_ondemand acpi_cpufreq mperf ip6_tables uinput snd_hda_codec_nvhdmi snd_hda_codec_realtek snd_hda_intel sna_hda_codec snd_ctxfi snd_hwdep snd_seq snd_seq_device sky2 iTCO_wdt ppdev parport_pc parport iTCO_vendor_support microcode i2c_i801 snd_pcm snd_timer snd soundcore snd_page_alloc ata_generic pata_acpi pata_jmicron nouveau ttm drm_kms_helper drm i2c_algo_bit video output i2c_core [last unloaded: scsi_wait_scan]
Pid: 1202, commL NetworkManager Tainted: G      D W #1 965P-DS3/965P-DS3
The system is a Core2 E6400, 2gig Giel DDR2, GTX460, Gigabyte 965P-DS3

Anyone have any idea what could be wrong ?


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boot, derefs, fedora, kernel, null, pointer

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