Update partition shrink function
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natemaia
parent
0289427125
commit
a21464c4c6
@ -5,7 +5,7 @@
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# Some ideas and code reworked from other resources
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# AIF, Cnichi, Calamares, Arch Wiki.. Credit where credit is due
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VER="2.0.36" # installer version
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VER="2.0.40" # installer version
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DIST="ArchLabs" # linux distributor
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MNT="/mnt" # install mountpoint
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ANS="/tmp/ans" # dialog answer file
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@ -717,7 +717,7 @@ part_menu()
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if [[ $DISPLAY && $TERM != 'linux' ]] && hash gparted >/dev/null 2>&1; then
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dlg choice menu "Edit Partitions" "$_part" \
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"auto" "Whole device automatic partitioning" \
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"resize" "Resize an existing ext2/3/4 or ntfs partition" \
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"shrink" "Shrink an existing ext2/3/4 or ntfs partition to make room for a new partition" \
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"gparted" "GUI front end to parted" \
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"cfdisk" "Curses based variant of fdisk" \
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"parted" "GNU partition editor" \
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@ -726,7 +726,7 @@ part_menu()
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else
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dlg choice menu "Edit Partitions" "$_part" \
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"auto" "Whole device automatic partitioning" \
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"resize" "Resize an existing ext2/3/4 or ntfs partition" \
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"shrink" "Shrink an existing ext2/3/4 or ntfs partition to make room for a new partition" \
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"cfdisk" "Curses based variant of fdisk" \
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"parted" "GNU partition editor" \
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"fdisk" "Dialog-driven creation and manipulation of partitions" \
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@ -735,8 +735,8 @@ part_menu()
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if [[ $choice == 'done' ]]; then
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return 0
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elif [[ $choice == 'resize' ]]; then
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part_resize "$device"
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elif [[ $choice == 'shrink' ]]; then
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part_shrink "$device"
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elif [[ $choice == 'auto' ]]; then
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local root_size txt table boot_fs
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root_size=$(lsblk -lno SIZE "$device" | awk 'NR == 1 {
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@ -906,7 +906,7 @@ part_format()
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sleep "${delay:-0}"
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}
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part_resize()
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part_shrink()
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{
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part=""
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typeset -i size num
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@ -921,20 +921,26 @@ part_resize()
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ext*|ntfs)
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msg "Resize" "\nGathering device size info.\n" 0
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# shit hacks to get device size info
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# get device size info
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num="${part: -1}"
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end=$(parted -s "$device" print | awk '/^\s*'"$num"'/ {print $3}')
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devsize=$(parted -s "$device" print | awk '/Disk '"${device//\//\\/}"':/ {print $3}')
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mount "$part" $MNT >/dev/null 2>&1; sleep 0.5
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min=$(df "$part" | awk '/'"${part//\//\\/}"'/ {print int($3 / 1024)}') # used
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max=$(df "$part" | awk '/'"${part//\//\\/}"'/ {print int($4 / 1024)}') # available
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umount $MNT >/dev/null 2>&1
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end=$(parted -s "$device" unit KiB print | awk '/^\s*'"$num"'/ {print int($3)}') # part size in KiB
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devsize=$(parted -s "$device" unit KiB print | awk '/Disk '"${device//\//\\/}"':/ {print int($3)}') # whole device size in KiB
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# minimum in KiB (2^10)
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case "$fs" in
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ext[2-4]) min=$(dumpe2fs -h "$part" |& awk '/Block count/{count=$NF} /Block size/{size=$NF} END{print int((count * size) / 1024)}') ;;
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ntfs) min=$(ntfsresize -f -m "$part" | awk 'NR == 2 {print int(($NF * 1000 * 1000) / 1024)}') ;;
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esac
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# KiB -> MiB
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mbmin=$((min / 1024))
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mbend=$((end / 1024))
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# get new size from user
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tput cnorm
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if dialog --backtitle "$DIST Installer - $SYS - v$VER" --title " Resize: $part " --rangebox "$_resize" 17 "$COLUMNS" "$min" "$max" $((max / 2)) 2>$ANS; then
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(( (size = $(< "$ANS")) + 1025 <= max )) || return 1
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size=$((( (size * 1024) / 4 ) * 4)) # 4K block alignment
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if dialog --backtitle "$DIST Installer - $SYS - v$VER" --title " Resize: $part " --rangebox "$_resize" 17 "$COLUMNS" "$mbmin" "$mbend" $((mbend / 2)) 2>$ANS; then
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(( (size = $(< "$ANS")) < mbend )) || return 1
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size=$((size * 1024))
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else
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return 1
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fi
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@ -943,28 +949,31 @@ part_resize()
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case "$fs" in
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ext[2-4])
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e2fsck -f "$part"; sleep 0.5
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resize2fs -f "$part" ${size}K 2>$ERR
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errshow "resize2fs -f $part ${size}K" { echo 'press enter to continue'; read; return 1; }
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resize2fs -f "$part" ${size}K 2>$ERR # K=2^10 bytes
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errshow "resize2fs -f $part ${size}K" || return 1
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;;
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ntfs)
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ntfsresize -fc "$part" || { msg "Resize" "\nThe ntfs partition $part cannot be resized because it is scheduled for a consistency check.\n\nTo do a consistency check in windows open command prompt as admin and run:\n\n\tchkdsk /f /r /x\n"; return 1; }
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ntfsresize -ff --size $(( (size * 1024) / 1000 ))k "$part" 2>$ERR # k=10^3 bytes
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errshow "ntfsresize -f -s $(( (size * 1024) / 1000 ))k $part" || return 1
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;;
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ntfs) ntfsresize -f -s ${size}k "$part" || { echo 'press enter to continue'; read; return 1; } ;;
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esac
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echo "filesystem shrunk successfully, now the partition"
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sleep 0.5
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(( size += 1024 ))
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parted "$device" resizepart "$num" ${size}Kib || return 1
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parted "$device" resizepart "$num" ${size}KiB || return 1
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(( size++ ))
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sleep 0.5
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if (( ++size < (max * 1024) )); then
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if [[ $devsize == "$end" ]]; then
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parted -s "$device" mkpart primary ext4 ${size}Kib 100% 2>$ERR
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else
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parted -s "$device" mkpart primary ext4 ${size}Kib "$end" 2>$ERR
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fi
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errshow "parted -s $device mkpart primary ext4 ${size}Kib 100%" || return 1
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if [[ $devsize == "$end" ]]; then
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parted -s "$device" mkpart primary ext4 ${size}KiB 100% 2>$ERR
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errshow "parted -s $device mkpart primary ext4 ${size}KiB 100%" || return 1
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else
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parted -s "$device" mkpart primary ext4 ${size}KiB ${end}KiB 2>$ERR
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errshow "parted -s $device mkpart primary ext4 ${size}KiB ${end}KiB" || return 1
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fi
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sleep 1
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msg "Resize Complete" "\n$part has been successfully resized to $(( (size - 1025) / 1024 ))M.\n"
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msg "Resize Complete" "\n$part has been successfully resized to $((size / 1024))M.\n"
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;;
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*) msg "Invalid Filesystem: $fs" "\nResizing only supports ext and ntfs.\n\nFor unformatted partitions, cfdisk can be used.\n" ;;
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esac
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