On Feb 12 17:32, Cedric Blancher via Cygwin wrote: > Good afternoon! > > Is copying sparse files broken in 3.6.0-0.362.g68c13dc92f65.x86_64? > > cp --version > cp (GNU coreutils) 9.5 > Packaged by Cygwin (9.5-1 > > Checklist: > - Volume has FILE_SUPPORTS_SPARSE_FILES > - Cygwin mount has "sparse" option (mount Y: -o sparse,exec /cygdrive/y) > - source file has FILE_ATTRIBUTE_SPARSE_FILE set > > But cp --sparse=auto ... or any other combination of --sparse does > copy holes, i.e. turns 500GB of hole into 500GB of data (zero bytes). > > echo "hello sparse file\n" >testcase17_sparse_begins_with_data && dd > if=/dev/null of=testcase17_sparse_begins_with_data oflag=append bs=1 > count=1 seek=$((65536*512)) && echo "endoffile" > >>testcase17_sparse_begins_with_data
Works for me: $ uname -r 3.6.0-0.362.g68c13dc92f65.x86_64 $ pwd /home/corinna/tmp $ mount | grep tmp C:/cygwin64/home/corinna/tmp on /home/corinna/tmp type ntfs (binary,sparse,user,bind) $ echo "hello sparse file\n" >testcase17_sparse_begins_with_data && dd if=/dev/null of=testcase17_sparse_begins_with_data oflag=append bs=1 count=1 seek=$((65536*512)) && echo "endoffile" >>testcase17_sparse_begins_with_data $ ls -gGsh testcase17* 128K -rw----r--+ 1 33M Feb 12 18:22 testcase17_sparse_begins_with_data $ cp --sparse=auto testcase17_sparse_begins_with_data testcase17_sparse_begins_with_data.copy $ ls -gGsh testcase17* 128K -rw----r--+ 1 33M Feb 12 18:22 testcase17_sparse_begins_with_data 128K -rw----r--+ 1 33M Feb 12 18:23 testcase17_sparse_begins_with_data.copy Corinna -- Problem reports: https://cygwin.com/problems.html FAQ: https://cygwin.com/faq/ Documentation: https://cygwin.com/docs.html Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple
