John Summerfield wrote:
John R Pierce wrote:
dump 0f - /mnt/src | (cd /mnt/dst; restore rf - ) ...
And presumably, fairly quickly. I've never used dump/restore, but if it does the obvious and decides which blocks top copy, sorts the list then copies, it should be quickest of all, regardless of the data content.
dump/restore is an exact file by file copy of a filesystem, it replicates the directory entries quite exactly including all supported attributes.. I probably got in the habit of using it from Solaris, which has the rather similar ufsdump/ufsrestore.
another method is
cd /source; tar clf - . | (cd /dest; tar xvf -)
but not all versions of tar have the -l (--one-file-system) option (gnu tar in CentOS does, however).
oh yeah, dump will dump an unmounted filesytem too, so in fact, that could have been...
mount /dev/hda1 /mnt/dst cd /mnt/dst dump 0f - /dev/hdb1 | restore rf -