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Old 08-24-2011, 10:40 AM   #1
SeRi@lDiE
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mbr question


So me like a dumb ass left the mbr on the "primary" drive. Now I want to get rid of that drive but I cant because my OS is in the secondary drive and wont boot without the primary (what a cluster f!@k). If I boot of the slackware cd and run lilo -M /dev/sdb and create a new mbr with lilo would this help me or would it fubar my current config?

Thanks for the help.

Last edited by SeRi@lDiE; 08-25-2011 at 11:19 AM.
 
Old 08-24-2011, 11:53 AM   #2
ecki_
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What I usually do in this situation is, that I prepare the target situation first, then boot from a CD and install the boot loader.

So, first remove the primary drive and boot from the Slackware CD. From there edit /etc/fstab and /etc/lilo.conf on your previous /dev/sdbX (which now should be /dev/sdaX), and then execute lilo to install the new boot block.

The reason for this is, that lilo examines the _current_ situation and translates /dev/sdXX to the actual BIOS drives. This translation wouldn't be valid anymore after you remove the former primary disk.

If something goes wrong you should always be able to plug the former primary disk back in and get at least into single user mode of your OS to edit /etc/fstab again (after mounting the root disk read-write).
 
Old 08-24-2011, 02:58 PM   #3
SeRi@lDiE
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Thats the general idea I have I was just not to sure if lilo -M would be the correct command.

Thanks for the reply.

I am open to more ideas and thought's as well.

TIA.
 
Old 08-24-2011, 03:02 PM   #4
H_TeXMeX_H
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Try to keep your posts clean of bad language as best you can. This forum is supposed to be readable by all people.
 
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Old 08-24-2011, 03:06 PM   #5
SeRi@lDiE
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Quote:
Originally Posted by H_TeXMeX_H View Post
Try to keep your posts clean of bad language as best you can. This forum is supposed to be readable by all people.
While I some what agree.... I have to say "Welcome to the year 2011" . Please try to PM next time...
I know is not Friday yet :P
Thanks.

Last edited by SeRi@lDiE; 08-24-2011 at 03:12 PM.
 
Old 08-24-2011, 08:52 PM   #6
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I haven't used lilo in forever, so can't answer your general question, but you might simply try changing your BIOS boot drive, boot a liveCD (Slack or other), and chroot into your normal system.
Run lilo from there - your new disk will be the primary.
 
Old 08-25-2011, 07:06 AM   #7
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Install lilo to the MBR of the primary booted HDD.
 
Old 08-25-2011, 07:25 AM   #8
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It would be important to know if you're computer has IDE or SATA drives!

Markus
 
Old 08-25-2011, 08:51 AM   #9
SeRi@lDiE
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It would be important to know if you're computer has IDE or SATA drives!

Markus
Markus,

It has sata drives.
 
Old 08-25-2011, 09:16 AM   #10
markush
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Well, I have a Computer at home with two identical SATA-drives, /dev/sda and /dev/sdb. When I once had problems because grub had damaged my MBR of sda I installed lilo without any issues in the MBR of /dev/sdb.

You can learn here: http://www.linuxquestions.org/questi...he-mbr-850261/ what happened and what I did in order to solve the issue.

I don't know if this is exactly the solution for your problem, but at least this thread will provide you with additional information related to your issue.

hope this helps

Markus
 
Old 08-25-2011, 09:38 AM   #11
SeRi@lDiE
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Originally Posted by markush View Post
Well, I have a Computer at home with two identical SATA-drives, /dev/sda and /dev/sdb. When I once had problems because grub had damaged my MBR of sda I installed lilo without any issues in the MBR of /dev/sdb.

You can learn here: http://www.linuxquestions.org/questi...he-mbr-850261/ what happened and what I did in order to solve the issue.

I don't know if this is exactly the solution for your problem, but at least this thread will provide you with additional information related to your issue.

hope this helps

Markus
Markus,

Thanks for your reply. Your post was helpful. I will try and fix all this tonight and if anything goes wrong (Hope not :P ) than I guess ill have to start all over again. Is all my fault any ways.

To All Thank You!
 
Old 08-25-2011, 10:08 AM   #12
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mh, I think I have forgotten to write the most important point

Look in the BIOS, make sure that both SATA-drives are bootable devices.

Markus
 
Old 08-25-2011, 10:16 AM   #13
SeRi@lDiE
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Originally Posted by markush View Post
mh, I think I have forgotten to write the most important point

Look in the BIOS, make sure that both SATA-drives are bootable devices.

Markus
That's been covered

Thanks.
 
  


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