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This is my first post on LinuxQuestions and I have a lot to learn about computers and operating systems, so please think about that when you reply.
I have two operating systems installed on my computer; Windows XP and openSuSE 10.3 and everything is working perfectly.
I want to install Ubuntu 7.10 instead of openSuSE 10.3 but the problem is when I restart computer and GRUB is loaded and I choose to boot from the Ubuntu live CD, GRUB always prompt me whit the error 25; Disk read error, but I know there is nothing wrong with the CD.
GRUB is installed on the MBR and in SuSE manuals they say that this is not good if you have 2 OSs on the same computer, but that is what YaST (SuSE system administration tool) suggested me to do.
Sorry if my english is not the best and thanks for your help!!!
Last edited by alan_ri; 09-13-2009 at 02:12 AM.
Try booting straight from the CD. Put CDROM ahead of the drive in the boot sequence. If it doesn't boot, then there is something wrong with the CD or the CD drive. ( Maybe just a smudge on the CD or a dirty laser in the drive. )
Hi! Welcome to LQ!
I might be wrong for I'm newbie too. But it seems to me that you shouldn't boot the bootable cd from the GrUB menu. Maybe you should change the boot device priority in BIOS setup? Make your computer to check for bootable CD prior to booting from the hard drive. In this case the GrUB is no longer needed to boot the CD. And it doesn't even work at that moment. As far as I know any of Live CDs could be started even on computers that have no operating systems installed on their hard drive.
I've configured the BIOS to check the floppy drive firstly. Than it searches for bootable media on my CD-ROM. And afterwards (if there is no bootable floppy or CD found in previous steps) it starts to check the MBR of the hard drive.
Ooops. I tried to be first to answer your question. But I was obviously typing too slow)))
Originally Posted by alan_ri
Dinithion,I think that what you suggested is the wright thing to do, but how do I enter my BIOS?
There must be the note explaining how to enter the BIOS setup when your computer is just starting to boot. But you may see the logo of the dealer/reseller (from which you have got your computer) instead. Try to press F2(this works for me) or F7 or DELETE or INSERT at the moment when your computer starts to boot.
That depends on your computer. During the initial startup, the computer often informs you how to enter the BIOS. If there isn't any text, only a picture, you could try to press esc or tab to remove the picture (That sometimes hide text).
DEL, F2, F8 and F12 are often used to enter the BIOS, try them out. You have to press them at the "right" moment, so repeat to press the key. If the GRUB menu shows up, you pressed the wrong key. In that case, reboot your computer and try another key.
alan_ri, to enter you bios resart your computer then when it goes to the first picture(if the pc is built by compaq it will have the compaq logo) on the screen at the bottom it should tell you what key to press to get into the bios(It may be called setup)common keys for the bios are f1, f2, f12, del. once you are in the bios look for something to do with boot, then it should list all possible devices to boot off put the cd drive at the top. then go to the exit tab and select exit saving changes.
caution be careful when in the bios, screwing up the bios may make your computer not boot!!!!!!!!!!!!!!!!!!