Re: DD not working

[Karl Larsen <k5di zianet com>]

Jim Cornette wrote:
> Karl Larsen wrote:
> > Vivek J. Patankar wrote:
> > > Karl Larsen wrote:
> > > > mount: /dev/sdb5 already mounted or /mnt busy
> > > >
> > > > The last 2 lines say that /dev/sdb5 is mounted to this Old Hard 
> > > > Drive somehow. I did not do this. /etc/fsack did not do this. So 
> > > > not sure what 
> > >
> > > Yes you did. See your opening mail of the thread titled 'dd and cp 
> > > -a' in which you say that you mounted it to /mnt, but didn't mention 
> > > how. I am assuming you made it permanent by adding it to fstab. And 
> > > if you did this, dd'ing the partition would take this setting over 
> > > to the new drive.
> >    Guys I am getting a information overload. My question is simple 
> > now. If I do it right is it possible to use dd to make a copy of this 
> > F7 to another Hard Drive?
> >
> >    Also you NEVER mount a partition that your dd transfering too. It 
> > finds it fine.
>
> Wouldn't you lose 10 GB and the disk would appear to be a 20 GB disk 
> also with dd?
>
> What about making a /boot, a /home, a / and a swap partition on the 
> new drive, create a filesystem and label the new partitions, then 
> mount the new / under a /mnt/newdrive directory, create a boot and 
> home partition on the new / partition so you could mount the to be new 
> home drive under a /mnt/newdrive/home mount point and then do the same 
> with the soon to be new boot directory under /mnt/newdrive/boot
>
> Once the new disk partitions are mounted you could use rsync to 
> replicate your present installation onto the new drive.
>
> I did this once and was fairly successful and got the replicated disk 
> to start to boot by using the rescue mode to run grub-install on the 
> new disk. It was a sata drive and the other drive was an IDE so I had 
> other issues with the attempt. If the target disk was IDE instead of a 
> SATA drive, it might have worked.
>
> Someone more familiar with rsync and the effects of /proc, /sys and 
> other not truly directories might be able to answer to whether rsync 
> would work when transferred to IDE to IDE. I figure the kernel panic 
> that I got was because of the IDE to SATA attempt.
>
> Using some replication program for Linux would probably be the best 
> option rather than DD or rsync.
>
> Jim
   Hi Jim, well the third iteration of a dd to the new drive is 
ongoing. So When it is done I will not reboot until I have used fsck on 
the new file system. Last time I had big trouble even getting a chance 
to check the file system :-)



--

	Karl F. Larsen, AKA K5DI
	Linux User
	#450462   http://counter.li.org.