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To install any other OS, you do exactly the same: select a partition, mount under "/" and install GRUB - you can either have it installed to floppy or have it overwrite your present GRUB. In the latter case, you may need to add your first OS manually if it isn't picked up (it would be unbootable otherwise). To make it easier, you should have a look at the file grub.lst before you install a second OS - the file is in the /boot/grub directory. Just copy out the parts that look like this:
These can then be added - by hand - to your newer GRUB.
Plenty of tutorials, manuals, how-tos etc. - just use google and you'll find more than you could ever read.
For now, you can visit the ubuntu site and have a look at all their docs and wikis.
EDIT: I can't boot Ubuntu. I will post the error in just a second. I want to check something in Fedora first.
EDIT2: Now I can't boot Fedora either. I will post the errors in the next post, since they are kinda long.
Well now it works! Thank you for your help everyone, especially jay73. The computer now boots Ubuntu automatically unless I press a key. That gives me the choice between Ubuntu and Fedora. I did't have to use that information I posted above at all, just the Fedora 7 Installer. Thanks so much!
I changed menu.lst on fedora by replacing the Ubuntu entry with the first of the parts that I posted before. Now it appears to be working than the screen goes blank forever. I am going to go back and change the file. Not sure how, but I bet thats where the problem is.
Ok. I am still getting the same problem. It is very hard to see what goes by before it blanks out. If you think this will give an obvious clue I will try to figure out what it says. Here is a list of what I have tried:
- replacing what fedora generated for Ubuntu with what Ubuntu generated for itself
- adding irqpoll to the end of the line (based on what it said here)
Note about the Ubuntu problem: Right before the screen goes blank it says Loading, please wait... and flashes something at the bottom of the screen. I will change this if I figure out what it says.
I got it to do something diffrent by removing the quiet splash part. This is what the Ubuntu part of the menu.lst file looks like now:
I'm back. Could you summarize where you're at right now? I've seen you posted so much that it's become confusing.
What works, what doesn't?
Which GRUB are you using: the one generated by Ubuntu or the one generated by Fedora?
Did you modify the original entry for Ubuntu and, if yes, how?
OK, if Ubuntu fails to boot, you need to make a minor adjustment:
its kernel /vmlinuz .... line should have root=/dev/sda2 instead of root=UUID=....
Ubuntu uses a different syntax to identify the root device; you need to "translate" it if you want it to boot from a GRUB other than its own.
The quiet and splash thingies you removed before can be put back - they are in now way involved in this. They only indicate whether you want to see the full boot messages while booting or whether you prefer to hide them.
I don't like the look of that. It seems your filesystem got damaged although I fail to see why.
Pop in your Gparted cd and double-click the terminal icon. When a terminal comes up type this:
Then try booting Ubuntu again.
Note: don't just power down a Linux system by clicking on the reset button- it's one of the main causes of filesystem corruption. You may get away with it using windows but Linux is less forgiving. If you ever get stuck on a command line, you can power down safely like this:
shutdown -h now
or if you want to reboot