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Changed mkusbimg size to 25% over rootsize

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This is plenty to compensate for filesystem
overhead. Cutting the size too close to
the minimum makes the image unbootable.
No idea why.

Signed-off-by: Simo Leone <simo@archlinux.org>
This commit is contained in:
Simo Leone 2008-03-30 03:31:46 -05:00
parent 378bf136e2
commit c265757045
1 changed files with 6 additions and 3 deletions
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9
mkusbimg
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@ -56,13 +56,16 @@ LOOPDEV=$(next_avail_loop)
TMPDIR=$(mktemp -d) TMPDIR=$(mktemp -d)
# TODO: there are better ways to do this # TODO: there are better ways to do this
# than adding 5MB to the rootsize # than adding 25% to the rootsize
# XXX: doesn't seem to boot if we cut it too
# close. even if everything fits...
# IMGSZ >= filesystem overhead + rootsize + 512bytes # IMGSZ >= filesystem overhead + rootsize + 512bytes
# must hold or there will be insufficient space # must hold or there will be insufficient space
IMGSZ=$(( $(du -ms ${IMGROOT}|cut -f1) + 5 )) rootsize=$(du -bs ${IMGROOT}|cut -f1)
IMGSZ=$(( (${rootsize}*5)/4 + 512 ))
# create the image file # create the image file
dd if=/dev/zero of="$IMG" bs=1M count="$IMGSZ" dd if=/dev/zero of="$IMG" bs="$IMGSZ" count=1
# loop mount the disk image # loop mount the disk image
losetup "$LOOPDEV" "$IMG" losetup "$LOOPDEV" "$IMG"