copy linux installation from old disk to new disk
 

hey guys,
I have just added a new HD to my 3 year old machine. I wanted to copy over my linux installation onto the new disk.these are the steps i followed:
1)i issued this command:
2)I then changed the /mnt/newdisk/etc/fstab file with the new parameters as in boot with /dev/hdb2 mounted on / and the new swap partition on the new disk.
3.)then i edited /mnt/new_disk/etc/lilo.conf and made the root=/dev/hdb2 and boot=/dev/hdb
4.)i issued this command:
When i reboot though..i still boot into the old disk(/dev/hda3) even though the additional swap space is picked up and i can see the swap memory at 1200 MB in gkrellm.
can someone please tell me how i am going wrong here and how to correct it.

Oh and i did not copy over /proc from the old directory since that is recreated at boot time(right??).
I am uing knoppix with kernel 2.6.3(or 7...i am not at home right now).
thanks

you need to re-install grub.

the moethod you used will work fine provided you DO NOT USE CD-RECORDDING, X or ANY GRAPHICAL USER ENVIRONMENT !

(like my caps lock abuse ?)

you forgot to tell the copy command to preserve file attributes !

i tried this before... X will not be able to load because certain files which need to be writable to the user will not be.
also, some parts of X NEED to be set to suid root.

you just made a horrible mess !

i sure hope you didnt delete the origonal install !

you can fix the OS... but it will take a LOT or trial and error fixing file attribute settings with chown and chroot.

and yes, /proc is created at boot time, but /dev/ isnt neccererily... depends on how you setup your OS and kernel. load knoppix, and mount the old OS... there may be some devices in the old mounted /dev/ directory ! but you can re-build the /dev/ directory with the make_devices script.

Follow the link below, here you wil find all the information you need

http://www.linux.com/howtos/Hard-Disk-Upgrade/

I have already tried the method described in this link. Infact it is the one i followed the first time around.
It did not seem to work and i honestly cannot remember screwing up anywhere.
thanks though

If you follow the instructions to the letter you should at some moment remove the old disk, in this case you are force to boot the "new-disk".

If you want to use the old disk connect it again after you have finished the migration instruction