Thanks for help, i find it useful. On 3/22/12, Vlad Dogaru <ddvlad@xxxxxxxxxx> wrote: > On Thu, Mar 22, 2012 at 3:31 PM, Akshay Nehe <akshaynehe785@xxxxxxxxx> > wrote: >> Hello, >> >> Can we create file on ext4 file system which dose not uses extent >> allocation? > > Man page of mkfs.ext4 suggests using "-O ^feature" to disable an ext4 > feature. This seems to work: > > $ dd if=/dev/zero of=test1 bs=4M count=20 > [...] > $ mkfs.ext4 -F test1 > [...] > $ file test1 > test1: Linux rev 1.0 ext4 filesystem data, > UUID=408f6da2-c4ef-4335-9574-985f3a349ed2 (extents) (huge files) > > $ mkfs -O ^extent -F test1 > [...] > $ file test1 > test1: Linux rev 1.0 ext4 filesystem data, > UUID=23c046d6-db7a-419d-a1d5-0cba3c5b52d0 (huge files) > > Hope this helps, > Vlad > -- Regards, Akshay Nehe. _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
