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fc0b75b2be
Signed-off-by: Moritz Breitbach <moritz.breitbach@t-online.de> Signed-off-by: Tobias Knöppler <6317548+theCalcaholic@users.noreply.github.com>
110 lines
3.3 KiB
Bash
110 lines
3.3 KiB
Bash
#!/bin/bash
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# Format a USB external drive as a unique BTRFS partition
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#
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# Copyleft 2017 by Ignacio Nunez Hernanz <nacho _a_t_ ownyourbits _d_o_t_ com>
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# GPL licensed (see end of file) * Use at your own risk!
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#
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# More at: https://ownyourbits.com
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#
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configure()
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{
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# count all disk devices except mmcblk0
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local mounts
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local found=false
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local root_disk
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while read -r line
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do
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if [[ "$found" != "true" ]]
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then
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mounts="$(rev <<<"$line" | cut -d" " -f1 | rev)"
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[[ "$mounts" =~ (^|'\x0a')/($|'\x0a') ]] && {
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echo "$line"
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found=true
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}
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fi
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if [[ "$found" == "true" ]]
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then
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if [[ "$(cut -d" " -f6 <<<"$line")" == "disk" ]]
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then
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root_disk="$(cut -d" " -f1 <<<"$line")"
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break
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fi
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fi
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done < <( lsblk -nr | tac )
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[[ -n "$root_disk" ]] || {
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echo "ERROR: Could not determine root disk!"
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return 1
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}
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local NUM=$( lsblk -ln | grep "^sd[[:alpha:]].*disk" | grep -v "^$root_disk" | awk '{ print $1 }' | wc -l )
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# only one plugged in
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[[ $NUM != 1 ]] && {
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echo "ERROR: counted $NUM devices. Please, only plug in the USB drive you want to format";
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return 1;
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}
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DATADIR="$(get_nc_config_value datadirectory || true)"
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if [[ $( stat -fc%d / ) != $( stat -fc%d "$DATADIR" ) ]] || [[ -z "$DATADIR" ]] && [[ "$ALLOW_DATADIR_REMOVAL" != "yes" ]]
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then
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echo "ERROR: Data directory is on USB drive (or can't be determined) and removal of data directory was not explicitly allowed." \
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"Please move the data directory to SD before formatting the USB drive." \
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"If you are certain that the data directory is not on this USB drive, check 'Allow data directory removal'." \
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"Exiting..."
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return 1
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fi
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# disable nc-automount if enabled
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killall -STOP udiskie 2>/dev/null
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# umount if mounted
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umount /media/USBdrive* &> /dev/null
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# check still not mounted
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for dir in $( ls -d /media/* 2>/dev/null ); do
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mountpoint -q $dir && { echo "$dir is still mounted"; return 1; }
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done
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# do it
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local NAME=( $( lsblk -ln | grep "^sd[[:alpha:]].*disk" | awk '{ print $1 }' ) )
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[[ ${#NAME[@]} != 1 ]] && { echo "unexpected error"; return 1; }
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wipefs -a -f /dev/"$NAME" || return 1
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parted /dev/"$NAME" --script -- mklabel gpt || return 2
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parted /dev/"$NAME" --script -- mkpart primary 0% 100% || return 3
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sleep 0.5
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mkfs.btrfs -q /dev/"${NAME}1" -f -L "$LABEL"
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local RET=$?
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# enable nc-automount if enabled
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killall -CONT udiskie 2>/dev/null
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[ $RET -eq 0 ] && echo "Drive $NAME formatted successfuly and labeled $LABEL"
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return $RET
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}
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install() { :; }
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# License
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#
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# This script is free software; you can redistribute it and/or modify it
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# under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This script is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this script; if not, write to the
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# Free Software Foundation, Inc., 59 Temple Place, Suite 330,
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# Boston, MA 02111-1307 USA
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