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Old 04-06-2009, 09:24 PM   #1
ufmale
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Disappear OS. -- No operating system found


I have been running REL4 for quiet some time. Last week, when I reboot the system, It cannot boot. It says:

Code:
"1962: No operating system found. Press F1 to repeat boot sequence.
I was thinking that it might be that the disk is full since there is about 1G left on the disk. So I took the disk and mount it on different system and remove some of the files.

When put back and try to reboot, it still does not work.
Can someone suggest what investigation I should do next?
I hate to reinstall all the tools and environment I have on this system.

I hope it is not a virus. I've never heard about virus on linux.

Can i copy data from /boot folder from a good system? Will that work?

Last edited by ufmale; 04-06-2009 at 09:26 PM.
 
Old 04-06-2009, 10:19 PM   #2
grunt547
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Try to use the CD you installed Linux with as a rescue disk, most distros let you do that. You should be able to pass a "root=/dev/hda1" parameter or something similar (depending on your root device) to the CD's bootloader. After you boot, you can re-install LILO or GRUB, whichever you're using.

Also, that 1962 error sounds like you're using the Windows ntldr as the first-stage boot loader. Is this a dual-boot or ex-Windows system?
 
Old 04-06-2009, 10:46 PM   #3
syg00
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The ntldr does have a similar message, but that looks more like a BIOS message.
I'd be taking a real close look at that disk - as suggested from a liveCD. Check the partitions, see if there is in fact any loader code there. I've seen BIOS's that won't boot unless the boot flag is on a partition somewhere - but if it was working, why would it change ?.
 
Old 04-07-2009, 10:48 AM   #4
ufmale
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Quote:
Originally Posted by grunt547 View Post
Try to use the CD you installed Linux with as a rescue disk, most distros let you do that. You should be able to pass a "root=/dev/hda1" parameter or something similar (depending on your root device) to the CD's bootloader. After you boot, you can re-install LILO or GRUB, whichever you're using.

Also, that 1962 error sounds like you're using the Windows ntldr as the first-stage boot loader. Is this a dual-boot or ex-Windows system?
There is no dual-boot on this system.
When I use rescue option from the CD. it couldn't find any pre-installed OS. However, I am able to mount the boot partion and Volgroup partition successfully (default partition for Redhat).


Any suggestion?
 
Old 04-07-2009, 04:08 PM   #5
ufmale
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Found the problem

It is just something we do not usually think about. The pair cable connecting the harddisk was broken.
After replace the cable, it boot fine.
 
  


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