copy MBR

[julio rivas]

HI,
I find that the solution for some of the problems could be to copy a master boot on the system, but I'm not really sure on how to do this ,

I remember something was mentioned on class so I'm reviewing the power points.
didn't see any on the how to.
any help apreciayed
julio.

[Jonathan Simms]

Hey Julio,

you need to boot off of the rescue floppy then,
mount /dev/fd0 /mnt
cd /mnt
dd if=mbr of=/dev/sda bs=512 count=1
cd ..
umount /mnt
init 6 # to reboot

[julio rivas]

hi
hey, jonathan,
it works thanks a lot.

[jeff clark]

Praise the lard, it worked! So the MBR of /dev/sda was at fault - but why? A number of us banged our heads against this problem in the CTC today. We concluded that stage2 wasn't being loaded properly, and compared the xxd output of the trouble MBR (/dev/sda) to the backup mbr file we'd created before starting the trouble exercise, but the two looked exactly the same. What was xxd hiding from us?

[Jonathan Simms]

Which trouble was this? I was able to solve all of the booting problems and so far up to number 3 of rooting problems so if anyone has any questions I'll try and help. I'm still working on the last 6.

[jeff clark]

Sorry, #4 of booting problems (1, 4).