On Thu, 2008-01-10 at 13:22 +0000, Timothy Murphy wrote: > Tom Spec wrote: > > > I am planning to move from one HD to another I need a bit of feedback. I > > am partitioned as follows: > > > > sda1 /boot (Linux Partition) 256M > > sda2 LVM PV (Linux LVM Partition) 20G > > > > I was planning to..... > > > > 1) attach the new HD > > 2) boot to a rescue CD > > 3) partition the new HD exactly how the old one is > > 4) dd if=/dev/sda1 of=/dev/sdb1 > > 5) dd if=/dev/sda2 of=/dev/sdb2 > > 6) make the new HD bootable > > 7) disconnect the old HD > > 8) boot > > > > My questions... > > > > - Is this basically the right procedure? > > In my opinion dd is not the right tool for this. > (I am amazed no-one else has said this.) > > I would partition the new disk as you like, > and copy the contents of the old partitions to the new > with "cp -a". > > > - Do I need to boot to the rescue CD or would single user (or emergency) > > mode be good enough (in step 2)? - Exactly what steps are required to > > "make the new HD bootable"? - Is there a way for me to make the old hd > > "unbootable" so I can leave it in, but make sure it's the new one that > > boots? > > I don't really see any problem. > Assuming you have both disks in the same machine, > you should be able to add a new entry in grub.conf > allowing you to boot from the new disk. > Then you could install grub on the second disk. > > [I would actually have two grub entries for each disk, > one with root (hd0,...) and one with root (hd1,...). > Then you could physically change the disks, > and remove the old one if all works OK.] > > > -- > Timothy Murphy > e-mail (<80k only): tim /at/ birdsnest.maths.tcd.ie > tel: +353-86-2336090, +353-1-2842366 > s-mail: School of Mathematics, Trinity College, Dublin 2, Ireland > Hi Tom I tend to agree with this comment - a bit more detail though. I have found an old script (printout only) that I used to use to clone RH9.0 onto a USB disk !! #mount the new disk, something like mount /dev/sdb1 /mnt/zip umask 0 #Copy "nearly" all the top level directories #Avoid /proc, /dev, /tmp cp -rdpx /bin /mnt/zip cp -rdpx /etc /mnt/zip ... ... #Not sure whether with hal, udev and friends this is #still necessary (cd /dev;find . -print | cpio -pmd /mnt/zip/dev) mkdir /mnt/zip/proc mkdir /mnt/zip/tmp chmod 777 /mnt/zip/tmp #Edit /mnt/zip/etc/fstab as required #Edit /mnt/zip/boot/grub/grub.conf as required(This #assumes /boot and / are in the same partition !!) John
