Ubuntu 12.10 install fails on AMD sempron pc with tri-boot: win7, win8, ubuntu 12.10

[farmerjohn73]

My desktop has these specs:

Motherboard: Biostar A780L3C
AMD Sempron 145
2 GB RAM
160 GB HDD -- IDE Hard disk.
Onboard Graphics.

First I partitioned my disk with GParted into three partitions NTFS, NTFS and Ext2. Then I installed windows 7, then windows 8. Till this stage installation was ok and both OSes are running well. Then I tried to install Ubuntu 12.10. But it failed midway by displaying message that

"Bug: Unable to handle kernel null pointer dereference at 00000004

and system hangs. I cant do anything but to restart the system.

How can I fix this and load Ubuntu 12.10 and tri-boot my system?

Please help.

[oldfred]

Do not know if related or not.

Someone posted that they tried ext2 and had issues, changed to ext4 and it worked.

Also you need more than one partition with default install, typically default is / (root) and swap. Many suggest separate /home or data partitions. Especially NTFS data partition to share Windows data as Windows does not like writes into its system partition.

WARNING for Windows 8 Dual-Booters
http://ubuntuforums.org/showthread.php?t=1953674
It defaults shutdown to a hybrid hibernation/off state for fast boot
But then files may be corrupted similar to Windows 7 Hibernation:
http://ubuntu-with-wubi.blogspot.ca/...rid-sleep.html
http://superuser.com/questions/14472...te-w-dual-boot

[farmerjohn73]

thanks oldfred, I will try to install on ext4 and report. I am checking out your links as well.

[farmerjohn73]

oldfred,creating ext4 partition and installing 12.10 did not work. Is there any other workaround?

I read somewhere that this is a kernel panic. How do I solve it?

[oldfred]

Some computers will not boot from beyond the 137GB limit in BIOS. And we have seen some issues with grub on finding the boot files with either large / (root) partitions or those partitions beyond 100GB on drive.

I have several smaller / partitions near the end of my 650GB drive and they all work without issue. So it is either BIOS settings or a bug in grub.

[farmerjohn73]

Dear Oldfred, I appreciate your pains in helping me and I am really thankful to you. What I did yesterday was this:

I created a swap partition with 5 GB and another unallocated partition of 1GB (for Booting) and One ext2 of 78GB with Gparted Live. I started installing 12.10 by changing boot partition to the unallocated partition. (I left it unallocated because Gparted was not allowing me to create more than 4 primary partitions. I thought the installer would handle that) but midway the installer crashed and displayed a message. I took a picture with my mobile phone. Please see the attachment.

The message says its a kernel bug this time. and not a null pointer dereferencer bug.

Is there a way to overcome this and install Ubuntu12.10.

Thanks in advance..