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Old 10-22-2008, 11:23 AM   #1
Alfiow
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System halts at boot


I've acquired a spare machine, which I'm using to try out different distros, without dual boot.

I've tried, Freespire, Mandrake and Ubuntu, I get the same problem with them all..........with the bios set to Cdrom as first boot device, the system stops after it finds both cdroms..........if I change the bios to boot from the harddrive first, I see the grub menu, the 2 second count, and the system boots correctly.

This machine always booted correctly with the cdrom set as first boot device when used with WinXP.

Any thoughts?

Thanks

Alf
 
Old 10-22-2008, 11:28 AM   #2
onebuck
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Hi,

Welcome to LQ!

You didn't post any hardware specification so this is a 'swag'.

You could be experiencing a BIOS problem with the 4K vs 8k block reads. Some older BIOS will not read newer Distribution cd because of the 4K blocks expected on the media. The newer Distributions do a 8K block read.
 
Old 10-23-2008, 06:25 AM   #3
Alfiow
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Quote:
Originally Posted by onebuck View Post
Hi,

Welcome to LQ!

You didn't post any hardware specification so this is a 'swag'.

You could be experiencing a BIOS problem with the 4K vs 8k block reads. Some older BIOS will not read newer Distribution cd because of the 4K blocks expected on the media. The newer Distributions do a 8K block read.
Thanks for the reply, the machine is a mix of old and less old, the motherboard was replaced about 2 years ago, with a Foxconn 661fx7, it still reatins the orginal hard drive, must be 8 years old now, a Quantum Fireball 15 GB.

This machine, is a second machine, and is purely for me to get used to installing and and using a Linux OS, I'm not that bothered about further upgrades.

Alf
 
Old 10-23-2008, 10:01 PM   #4
plpl303
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If it always chokes up after looking at both CD's, perhaps removing one of the CD drives will fix the problem?

Would one of your CD drives be sharing an IDE cable with the hard disk? They might be conflicting with each other...

Or, on the other hand, maybe when the CD is set to the boot device, the CD's get reported as the first two bootable devices. The BIOS is only able to handle two different hard drives, so with both CD's occupying the two "slots" the BIOS can boot from, the hard disk is not visible as a boot device.

Which of these most closely matches your setup?

IDE0: HD
IDE1: CD1, CD2

IDE0: HD,CD1
IDE1: CD2

IDE0: CD1,CD2
IDE1: HD

Or maybe something else?

I'd guess (and maybe this won't work) that putting the two CD's on IDE1 and the hard drive alone on IDE0 would allow the hard drive to be bootable?

Last edited by plpl303; 10-23-2008 at 10:03 PM.
 
Old 10-23-2008, 11:16 PM   #5
onebuck
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Hi,

For a modern PC BIOS the ide channel should not be a problem. If you have both cd1 & cd2 on the same channel as long as one is master & the other is slave either one could be set as bootable. The hdd on ide1 could still be bootable with the selection of the BIOS boot order. Even if you have another hdd on the same ide1 channel with the other hdd on ide1 you could select either one, master or slave. As for Linux the IPL will control the boot then pass to the SPL for the kernel.

Linux doesn't care if the partition is marked bootable as long as you have a bootloader setup.
 
Old 10-24-2008, 06:50 AM   #6
Alfiow
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Which of these most closely matches your setup?

IDE0: HD
IDE1: CD1, CD2

IDE0: HD,CD1
IDE1: CD2

IDE0: CD1,CD2
IDE1: HD

The primary ide, IDE0 has master and slave hard drives
The secondary IDE, IDE1 has master and slave CDROMS

this set up worked with Win98, and WinXP

Alf
 
  


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