LinuxQuestions.org - Lost boot drive, howto reinstall from backups w/ apt?

I lost my boot drive (sounds crunchy!). I was running Ubuntu Edgy, and I had /var and /home mounted on a RAID5. I also backed up /etc daily to /var/backup so I have all of that.

Here's the relevant lines from /etc/fstab:

Code:

root@ubuntu:/mnt/var/backup/CURRENT/etc# cat ./fstab

# /etc/fstab: static file system information.

#

# <file system> <mount point>  <type>  <options>      <dump>  <pass>

proc            /proc          proc    defaults        0      0

# /dev/hda3 -- converted during upgrade to edgy

UUID=21a6dc19-b80f-49f7-8722-69dd20b7b72d / ext3 defaults,errors=remount-ro 0 1

# /dev/hda6 -- converted during upgrade to edgy

UUID=04415998-25f0-40d4-9632-39f49ea530b7 none swap sw 0 0

/dev/md1        /var            ext2    defaults,errors=remount-ro 0      1

/dev/md0        /home          ext2    defaults,errors=remount-ro 0      1

/dev/hdb        /media/cdrom0  udf,iso9660 user,noauto    0      0

I have installed a new disk and I am currently installing Ubuntu Dapper from a live CD while I type up this message.

(Note, I am a little unsure of those lines pointing to /dev/hda since I have replaced that disk and I am not using the same partitions).

What is the best way to restore this?

One method:
1) Install dapper to the disk.
2) From the live CD boot, update the dapper fstab to mount the old /var and /home. Copy over the backup /etc.
3) Boot into the new installation, run apt to update the system.

Obviously, I am a little short on the details, but is this the way to go? If so, what is the command to force apt to glabally reinstall?

If you know a good HOWTO for this, please let me know. I am looking around, but I haven't seen anything that involves backups for /var and /etc.

Thanks!