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56 lines
993 B
Bash
Executable file
56 lines
993 B
Bash
Executable file
#!/bin/sh
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set -u -e -x
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FILE=$1
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MOUNTED=0
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LOOPATTACHED=0
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function do_cleanup() {
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[ $MOUNTED -ne 0 ] && umount /tmp/mnt.$$
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[ $LOOPATTACHED -ne 0 ] && losetup -d ${LODEV}
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rmdir /tmp/mnt.$$
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}
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trap do_cleanup ERR INT
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cd `dirname $0`
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truncate -s 1G $FILE
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parted --script $FILE \
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"mklabel msdos" \
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"mkpart primary fat32 1M 256M" \
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"mkpart primary btrfs 256M 100%" \
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"set 1 boot on"
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LODEV=$(losetup -f)
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losetup -P ${LODEV} ${FILE}
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LOOPATTACHED=1
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mkfs.vfat ${LODEV}p1
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mkfs.btrfs -f ${LODEV}p2
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mkdir /tmp/mnt.$$
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mount -t vfat ${LODEV}p1 /tmp/mnt.$$
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MOUNTED=1
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cp -r boot/* /tmp/mnt.$$/
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umount /tmp/mnt.$$
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MOUNTED=0
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mount -t btrfs ${LODEV}p2 /tmp/mnt.$$
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MOUNTED=1
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mkdir /tmp/mnt.$$/etc /tmp/mnt.$$/etc_work
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mkdir /tmp/mnt.$$/var_lib /tmp/mnt.$$/var_lib_work
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mkdir /tmp/mnt.$$/root /tmp/mnt.$$/root_work
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chmod 750 /tmp/mnt.$$/root /tmp/mnt.$$/root_work
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chown 0:0 /tmp/mnt.$$/root /tmp/mnt.$$/root_work
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umount /tmp/mnt.$$
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MOUNTED=0
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losetup -d ${LODEV}
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LOOPATTACHED=0
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rmdir /tmp/mnt.$$
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