On Tue, May 20, 2008 at 3:07 PM, Jochen Schulz <[EMAIL PROTECTED]> wrote: > Javier Vasquez: >> >> Do you suggest using "dd" instead? Would it work even if the destine >> partition is bigger (I read somewhere it works perfectly when source >> and destine are the same size, but I never read it works perfectly >> when destine is bigger)... > > Yes, it works. You have to resize your filesystems afterwards, but > that's not a biggie. > >> What about the HD MBR? I've tried already using "dd if=/dev/hda >> of=~/full_mbr.bin bs=512 count=1 && dd if=~/full_mbr.bin of=/dev/sda >> bs=446 count=1", but it didn't seem to work... > > Why do you only copy 446 Bytes back?
That's what I read is necessary, since the last 64+2 bytes of the 1st 512 bytes correspond to the partition table, which shouldn't be copied over I believe. An example of such warning can be found: http://www.sysdesign.ca/guides/partitions.html http://www.unix.com/unix-dummies-questions-answers/24885-how-copy-mbr-old-harddrive-new-harddrive.html Well, I'm not sure anymore then... > >> I wouldn't know if >> using count=2 to include the boot sector would work since the boot >> partition is the 2nd one (the swap is the 1st one)... > > It doesn't matter where your boot partition is. You only need the MBR > (the first 512 Bytes, AFAIK, which you already copied.) Sure the whole 512 1st bytes are required? I think they include the partition table, which is what I tried to avoid, but I might be wrong, :). >> The thing is that as this is a laptop, and changing the HD on the only >> IDE slot is getting less fun each time, I was thinking what would be a >> good recipy to follow. Maybe using dd for each partition, or for the >> whole HD would work, although I find it hard to believe it would (the >> partition tables at least should be different, since the difference in >> sizes), but I just might be too skeptical, and using dd for the whole >> HD is what works out of the box after partitioning the HD, :). > > No, you're right about your skepticism. dd'ing the whole disc will also > copy the partition table which you probably don't want. > > You only need to: > > - Partition the new disk to your liking. > > - dd filesystems from old partitions to the new ones. Make sure to use a > big number for the block size like bs=1M or more. That will speed up > the process. While dd is working, you can send the dd process a USR1 > signal (like 'kill -USR1 $pid') to make it print a report about its > current progress. > > - Copy the MBR using 'dd if=/dev/in of=/dev/out bs=512 count=1'. > > - Use resize2fs or whatever suits your filesystems to grow them up to > the capacity of their partition. > > - Swap disks and reboot. > > At least, that's how it should work in theory. :) > > J. -- Javier -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
