Gergely Budai wrote: > mv: cannot move `p7zip-4.57' to `../p7zip-4.57-orig': Permission denied
This is probably caused by a handle remaining open for some short period of time after tar has completed writing the files, such that mv starts before it closes. On a normal system, I don't think this should ever be the case, i.e. handles should be closed by the time tar terminates. Sometimes if you have on-demand virus scanning however, those hooks cause the file to remain open for a short period after tar has written them. I've also seen this with on-demand/real-time disk defragmentation (in my case, Diskeeper v11 I believe) software, which I had to disable. The fact that it is transient definitely indicates that it's a race, but I wouldn't go pinning it on dual core; although that may exacerbate it. Brian