Can't boot Kubuntu after installation

[elewandowski]

Hi,

I have two HDD. Hda contains a Windows OS. I don't want to alter this disk.
Hdb may be used for Kubuntu.
I installed Kubuntu on hdb. I choose to install grub on /dev/hdb.

The problem is : grub cannot boot Kubuntu neither Windows.

When I choose to boot Kubuntu, the message is :

root(hd1,0)
Filesystem type unknown, partition type 0x7
kernel /wmlinuz-2.6.12-9-386
root = /dev/mapper/Ubuntu-root ro quiet splash
error 17 : cannot mount selected partition.

What's wrong with my installation ? Does anyone can help me to solve this problem ? Is problem tied to my hardware or tied to my installation I I don't understand because this partition is an ext3 partition.

I check the m5 cheksum of downloaded iso file and all is correct.

Thanks !

[lestoil]

Your pc boots into windows from hda(1st disk) and grub is on 2nd hd root partition. With this setup only windows will boot. 1)You can add kubuntu to windows boot loader menu--not for faint of heart. 2)You can use kubuntu cd to boot into kubuntu root partition and grub. 3)You can make grub bootdisk(floppy,flashcard or cdr) to boot kubuntu. 4)Or the easiest is to put grub on mbr on 1st disk. Grub lives very well with windows,xp,dos,nt,other linuxes.
5) Of course you can reverse the order of your disks making grub boot 1st and add windows to its menu.list. But windows likes to be on 1st partition.
Review man grub and tutorial sections of linuxforums. I am sure kubuntu starter guide on their web page will cover these choices too. Good luck.

[elewandowski]

Thanks for your answer,

Grub is on boot sector of hdb. My computer is configured to boot first on hdb an after on hda.

I plan to launch Windows with Grub as I did when I install Mandrake 10.1.

The problem is that in fact, Grub cannot launch Kubuntu. It seems that the partition where Kubuntu is installed is not well configured. But I just follow the instructions of Kubuntu installer. That's my problem.

[elewandowski]

OK,

I found the problem with help of a grub file menu.lst generated with another distro.

The problem is Ubuntu's file menu.lst for grub is wrong.

My HDD configuration is :
- Master HDD contains Windows Installation,
- Slave HDD contains Ubuntu installation,
- Grub is installed in Slave HDD boot sector,
- My computer boots on Slave HDD.

Ubuntu installer generates these grub commands :
[I]root(hd1,0)
Filesystem type unknown, partition type 0x7
kernel /wmlinuz-2.6.12-9-386
root = /dev/mapper/Ubuntu-root ro quiet splash
error 17 : cannot mount selected partition.

I modify theses commands :
root(hd0,0)
Filesystem type unknown, partition type 0x7
kernel /wmlinuz-2.6.12-9-386
root = /dev/mapper/Ubuntu-root ro quiet splash


It seems that for grub my slave HDD is referenced as hd0 because my computer boots on it.