[Hampshire] Not booting after Wubi uninstall ... eeek!

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Author: Victor Churchill
Date:  
To: Hampshire LUG Discussion List
Subject: [Hampshire] Not booting after Wubi uninstall ... eeek!
Hello, I am in a silly situation.

My laptop hard disk was as follows:
40GB:
4 GB Ubuntu Intrepid 8.10
36GB WinXP:
20GB Wubi installation of Hardy 8.04 under WinXP

The reason for the odd setup is that I needed a working install this
time last year and 8.04 would not install cleanly on this Panasonic
CF-T2 whereas Wubi 8.04 did. Later I got 8.10 to install at top level
successfully.

Now the 8.10 has been running out of space in its wee 4GB partition so
I thought I could uninstall the Wubi which is not often used and
reclaim the 20GB space for the main Ubuntu. So in WinXP I ran the
Ubuntu uninstaller. Did not do anything with the But then on
attempting to reboot into 8.10 I see

Boot from (hd0,4) ext3 ca902c8-xx-xxx Error 15 File not found.

So I can boot into WIndows and nothing else.

>From a live CD I tried

1. mount the '3.9GB disk' containing Intrepid from the File Manager.
All files are visible. 'mount' shows
/dev/sda5 on /media/disk type ext3 (rw,noexec,nosuid,nodev)

2. grub-install /dev/sda5 --root-directory=/media/disk
- whirs for a few seconds and then says
The file /media/disk/boot/grub/stage1 not read correctly.

root@ubuntu:~# ls -l /media/disk/boot/grub
total 212
-rw-r--r-- 1 root root    197 2009-07-26 14:03 default
-rw-r--r-- 1 root root     15 2008-11-08 21:45 device.map
-rw-r--r-- 1 root root   8660 2009-07-26 14:03 e2fs_stage1_5
-rw-r--r-- 1 root root   8452 2009-07-26 14:03 fat_stage1_5
-rw-r--r-- 1 root root     16 2008-11-08 21:45 installed-version
-rw-r--r-- 1 root root   9152 2009-07-26 14:03 jfs_stage1_5
-rw-r--r-- 1 root root   4609 2009-02-10 20:22 menu.lst
-rw-r--r-- 1 root root   4621 2008-11-08 21:45 menu.lst~
-rw-r--r-- 1 root root   7860 2009-07-26 14:03 minix_stage1_5
-rw-r--r-- 1 root root  10132 2009-07-26 14:03 reiserfs_stage1_5
-rw-r--r-- 1 root root    512 2009-07-26 14:03 stage1
-rw-r--r-- 1 root root 110132 2009-07-26 14:03 stage2
-rw-r--r-- 1 root root   9980 2009-07-26 14:03 xfs_stage1_5
root@ubuntu:~# file /media/disk/boot/grub/stage1
/media/disk/boot/grub/stage1: x86 boot sector, code offset 0x48


Now when I rty to boot I get straight to a grub> prompt. If I say
grub>boot I see
Error 8: Kernel must be loaded before booting.

ANy clue what has gone wrong and how to fix it? I have the contents of
/home on a backup but would prefer not to do a full reinstall. just
aat the moment.

thanks as ever,