On Fri, 25 Jan 2013 07:29:44 -0500 Gene Czarcinski <gene@xxxxxxxxx> wrote: > After all, I do not need to be root to execute "btrfs --version". Is that all that comes to mind? I just did $ dd if=/dev/zero of=fs.img bs=1M count=2048 2048+0 records in 2048+0 records out 2147483648 bytes (2.1 GB) copied, 3.76772 s, 570 MB/s $ /sbin/mkfs.btrfs fs.img WARNING! - Btrfs Btrfs v0.19 IS EXPERIMENTAL WARNING! - see http://btrfs.wiki.kernel.org before using fs created label (null) on fs.img nodesize 4096 leafsize 4096 sectorsize 4096 size 2.00GB Btrfs Btrfs v0.19 $ /sbin/btrfsck fs.img checking extents checking fs roots checking root refs found 28672 bytes used err is 0 total csum bytes: 0 total tree bytes: 28672 total fs tree bytes: 8192 btree space waste bytes: 23875 file data blocks allocated: 0 referenced 0 Btrfs Btrfs v0.19 etc, etc. And after that I could start a QEMU VM or an UserModeLinux kernel image, passing this fs.img to it as a block device -- all while still being a regular user, without needing root privileges. -- With respect, Roman ~~~~~~~~~~~~~~~~~~~~~~~~~~~ "Stallman had a printer, with code he could not see. So he began to tinker, and set the software free."
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