I don't know where you got that command from, but "noerror" would
generally be used if the source device is failing. And yes, in that
case, you might get a corrupted image.
The command came from here:
So it's better to use just "sync" and not "noerror" right ?
The block size won't change the resulting image. It's just that the
default block size of 512 bytes can be quite inefficient. Using a
larger block reduces the CPU time used in system calls.
Ok so it makes no difference, and I will use whatever is most efficient on my hardware.
But as Jorge said, this is probably not the right tool for what you want
to do.
But again, I just want to copy the contents of the root logical volume, and not the partition itself.
The reason I am doing this is because I want to move to the newer thin LVMs. The partition will remain just the root logical volume will be deleted and then recreated as a thin logical volume.
Is partclone still the best option in the above scenario ?