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56 lines
1.6 KiB
Bash
56 lines
1.6 KiB
Bash
#!/bin/bash
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### BEGIN INIT INFO
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# Provides: resize2fs
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# Required-Start: $local_fs
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# Required-Stop:
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# Should-Start:
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# Default-Start: 2 3 4 5
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# Default-Stop: 0 1 6
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# Short-Description: Resize the root filesystem to fill partition
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# Description:
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### END INIT INFO
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set -e
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device="/dev/"$(lsblk -idn -o NAME | grep mmcblk0)
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PARTITIONS=$(($(fdisk -l $device | grep $device | wc -l)-1))
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device="/dev/"$(lsblk -idn -o NAME | grep mmcblk0)"p"$PARTITIONS
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N=/etc/init.d/resize2fs
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root_device=$(mountpoint -d /)
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for file in /dev/* ; do
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CURRENT_DEVICE=$(printf "%d:%d" $(stat --printf="0x%t 0x%T" $file))
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if [ $CURRENT_DEVICE = $root_device ]; then
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root_partition=$file
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break;
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fi
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done
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rootfstype=$(blkid -s TYPE -o value $root_partition)
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case "$1" in
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start)
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if [[ $rootfstype == ext4 && ! -f "/root/.no_rootfs_resize" ]]; then
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echo -e "[\e[0;32m ok \x1B[0m] Resizing SD card file-system"
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/sbin/resize2fs $device >/dev/null 2>&1
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fi
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echo -e "[\e[0;32m ok \x1B[0m] Force password change upon first login"
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chage -d 0 root
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echo -e "[\e[0;32m ok \x1B[0m] Creating 128Mb emergency swap area"
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dd if=/dev/zero of=/var/swap bs=1024 count=131072 status=noxfer >/dev/null 2>&1
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chown root:root /var/swap
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chmod 0600 /var/swap
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mkswap /var/swap >/dev/null 2>&1
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swapon /var/swap >/dev/null 2>&1
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echo "/var/swap none swap sw 0 0" >> /etc/fstab
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echo 'vm.swappiness=0' >> /etc/sysctl.conf
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update-rc.d -f resize2fs remove >/dev/null 2>&1
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;;
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stop)
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echo -e "[\e[0;32m ok \x1B[0m] Resizing in next start"
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;;
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*)
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echo "Usage: $N {start}" >&2
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exit 1
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;;
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esac
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exit 0
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