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save a few seconds by seeking instead of copying zeros

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This commit is contained in:
Jesse Andrews 2011-09-28 18:38:10 -07:00
parent 46ad2de5d9
commit 236943fe54
1 changed files with 2 additions and 2 deletions
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4
build_pxe_ramdisk.sh
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@ -89,8 +89,8 @@ BASE=build.$$
IMG=$BASE.img
MNT=$BASE/
# create a 2GB blank filesystem
dd if=/dev/zero of=$IMG bs=1024k count=2048
# (quickly) create a 2GB blank filesystem
dd bs=1 count=1 seek=$((2*1024*1024*1024)) if=/dev/zero of=$IMG
# force it to be initialized as ext2
mkfs.ext2 -F $IMG