From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8) Gecko/20051201 Fedora/1.5-1.1.fc4.nr Firefox/1.5 Description of problem: I find it useful to be able to create a large loopback root filesystem. Unfortunately nash losetup fails when attempting to create a loopback device for a file >= 2 GB in size. Version-Release number of selected component (if applicable): mkinitrd-4.2.15-1 How reproducible: Always Steps to Reproduce: Example: # dd if=/dev/zero of=testfile bs=1M seek=2048 count=0 # echo losetup /dev/loop0 testfile | /sbin/nash --force (forcing normal run) Red Hat nash version 4.2.15 starting losetup: failed to open testfile: 27 Expected Results: Running the same test with seek=2047 instead of 2048 works fine. Additional info: The util-linux losetup has no problem handling large files.