On Fri, 2003-01-31 at 17:51, Bob Holtzman wrote: > On 30 Jan 2003, Craig White wrote: > > > As a follow up, being the impatient person that I am, I just went ahead > > and did it. > > > > dd if=/dev/hda of=/dev/hdd bs=512 > > > > and it worked fine (target drive was slave on secondary controller, > > hence /dev/hdd > > Would it work to use /dev/ht0 instead of /dev/hdd to dump to tape. If > so, do you swap /dev/hda with /dev/ht0 to recover data? > ----- I think the block sizes are different. See - man dd or probably info dd, on RH 8 there was a bit of an explanation. I had to wing it myself when no one stepped up to answer the question right away Which actually brings up a point. I had a problem with the computer that I was using (an HP Brio - few years old...P III /500) When I had two linux drives installed hda & hdd for example, I would get an error if I tried to boot normally. It would not mount /usr and probably some other file systems. The only way I could get things to work was to boot from CD, clone the disk (using dd) shutdown, and then disconnect the extra drive. I have done this several times on other systems without incident...allows me to copy config files and such. On two of these machines, I had the same problem. Any one want to guess why? Craig