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writeimage.sh: cosmetic changes

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This commit is contained in:
Calin Crisan 2017-02-07 20:07:54 +02:00
parent cf35f56719
commit 3a6e99b664
1 changed files with 37 additions and 47 deletions
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84
writeimage.sh
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@ -1,5 +1,6 @@
#!/bin/bash -e
function usage() {
echo "Usage: $0 [options...]" 1>&2
echo ""
@ -16,40 +17,33 @@ function msg() {
echo "$(date) $1"
}
# use this function to unmount regardless of MAC OS or not
function smartUnmount() {
msg "Unmounting $1"
function smart_unmount() {
msg "Unmounting $1"
# if MAC OS
if [ `uname` == "Darwin" ]; then
diskutil unmountDisk $1
else # assuming Linux
# unmount sdcard
umount $1* >/dev/null 2>&1
fi
if [ `uname` == "Darwin" ]; then # if macOS
diskutil unmountDisk $1
else # assuming Linux
umount $1* >/dev/null 2>&1
fi
}
# use this function to mount regardless of MAC OS or not
function smartMount() {
msg "Mounting $1"
function smart_mount() {
msg "Mounting $1"
# if MAC OS
if [ `uname` == "Darwin" ]; then
diskutil mountDisk $1
else # assuming Linux
# unmount sdcard
umount $1* >/dev/null 2>&1
fi
if [ `uname` == "Darwin" ]; then # if macOS
diskutil mountDisk $1
else # assuming Linux
mount $1* >/dev/null 2>&1
fi
}
# This function will be ran upon script EXIT (using trap)
# this function will be run upon script exit (using trap)
function cleanup {
msg "Performing cleanup"
msg "Performing cleanup"
set +e
# unmount sdcard
smartUnmount ${SDCARD_DEV}
smart_unmount ${SDCARD_DEV}
}
if [ -z "$1" ]; then
@ -112,7 +106,7 @@ if [[ $DISK_IMG == *.gz ]]; then
DISK_IMG=${DISK_IMG::-3}
fi
smartUnmount ${SDCARD_DEV}
smart_unmount ${SDCARD_DEV}
msg "writing disk image to sdcard"
dd if=$DISK_IMG of=$SDCARD_DEV bs=1048576
sync
@ -124,19 +118,15 @@ fi
mkdir -p $BOOT
if [ `uname` == "Darwin" ]; then
BOOT_DEV=${SDCARD_DEV}s1 # e.g. /dev/disk4s1
if [ `uname` == "Darwin" ]; then # if macOS
BOOT_DEV=${SDCARD_DEV}s1 # e.g. /dev/disk4s1
# mount the disk
hdiutil attach ${BOOT_DEV}
BOOT=$(pwd)/.boot
echo "set BOOT for MAC to $BOOT"
else # assuming Linux
BOOT_DEV=${SDCARD_DEV}p1 # e.g. /dev/mmcblk0p1
else # assuming Linux
BOOT_DEV=${SDCARD_DEV}p1 # e.g. /dev/mmcblk0p1
if ! [ -e ${SDCARD_DEV}p1 ]; then
BOOT_DEV=${SDCARD_DEV}1 # e.g. /dev/sdc1
BOOT_DEV=${SDCARD_DEV}1 # e.g. /dev/sdc1
fi
mount $BOOT_DEV $BOOT
fi
@ -184,22 +174,22 @@ if [ -n "$IP" ] && [ -n "$GW" ] && [ -n "$DNS" ]; then
echo "static_dns=\"$DNS\"" >> $conf
fi
if [ `uname` == "Darwin" ]; then
# copy created files over to the disk
DISK_PARTITION=`diskutil info $BOOT_DEV | grep "Mount Point:" | sed 's/^[^/]*//' | sed 's/ /\\ /g'`
if [ `uname` == "Darwin" ]; then # if macOS
# copy created files over to the disk
DISK_PARTITION=`diskutil info $BOOT_DEV | grep "Mount Point:" | sed 's/^[^/]*//' | sed 's/ /\\ /g'`
echo "moving $BOOT/* to $DISK_PARTITION"
echo "moving $BOOT/* to $DISK_PARTITION"
mv -v "$BOOT"/* "$DISK_PARTITION"
mv -v "$BOOT"/* "$DISK_PARTITION"
sync
smart_unmount ${SDCARD_DEV}
rmdir $BOOT
diskutil eject ${SDCARD_DEV}
sync
smartUnmount ${SDCARD_DEV}
rmdir $BOOT
diskutil eject ${SDCARD_DEV}
else
sync
smartUnmount $BOOT
rmdir $BOOT
else # assuming Linux
sync
smart_unmount $BOOT
rmdir $BOOT
fi
msg "***you can now remove the sdcard***"