diff options
| -rwxr-xr-x | mkusbimg | 9 |
1 files changed, 6 insertions, 3 deletions
@@ -56,13 +56,16 @@ LOOPDEV=$(next_avail_loop) TMPDIR=$(mktemp -d) # TODO: there are better ways to do this -# than adding 5MB to the rootsize +# than adding 25% to the rootsize +# XXX: doesn't seem to boot if we cut it too +# close. even if everything fits... # IMGSZ >= filesystem overhead + rootsize + 512bytes # must hold or there will be insufficient space -IMGSZ=$(( $(du -ms ${IMGROOT}|cut -f1) + 5 )) +rootsize=$(du -bs ${IMGROOT}|cut -f1) +IMGSZ=$(( (${rootsize}*5)/4 + 512 )) # create the image file -dd if=/dev/zero of="$IMG" bs=1M count="$IMGSZ" +dd if=/dev/zero of="$IMG" bs="$IMGSZ" count=1 # loop mount the disk image losetup "$LOOPDEV" "$IMG" |