67 lines
2.4 KiB
Bash
Executable File
67 lines
2.4 KiB
Bash
Executable File
#!/bin/bash
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##############################################################################
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# parabola-arm-imagebuilder #
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# #
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# Copyright (C) 2017 Andreas Grapentin #
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# #
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# This program is free software: you can redistribute it and/or modify #
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# it under the terms of the GNU General Public License as published by #
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# the Free Software Foundation, either version 3 of the License, or #
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# (at your option) any later version. #
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# #
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# This program 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 program. If not, see <http://www.gnu.org/licenses/>. #
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##############################################################################
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set -eu
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die() { echo "$*" 1>&2 ; exit 1; }
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[ $(id -u) -ne 0 ] && die "must be root"
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_builddir=build
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mkdir -p "$_builddir"
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_imagefile="$_builddir/$(basename "$1")"
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cp $1 $_imagefile
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_rootdir="$_builddir"/root-$$
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_loopdev=$(sudo losetup -f --show "$_imagefile")
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sudo partprobe $_loopdev
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# register a cleanup error handler
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function cleanup {
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sudo umount ${_loopdev}p1
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sudo umount ${_loopdev}p3
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sudo losetup -d $_loopdev
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rm -rf "$_rootdir" "$_imagefile"
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}
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trap cleanup ERR
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# mount the image
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mkdir -p "$_rootdir"
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sudo mount ${_loopdev}p3 "$_rootdir"
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sudo mount ${_loopdev}p1 "$_rootdir"/boot
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# clean the image
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rm -fvr \
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"$_rootdir"/root/.ssh \
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"$_rootdir"/etc/ssh/ssh_host_* \
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"$_rootdir"/var/log/* \
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"$_rootdir"/var/cache/* \
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"$_rootdir"/lost+found
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# create the tarball
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tar -czf ParabolaARM-armv7-$(date "+%Y-%m-%d").tar.gz -C "$_rootdir" .
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# cleanup
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sudo umount ${_loopdev}p1
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sudo umount ${_loopdev}p3
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sudo losetup -d $_loopdev
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rm -rf "$_rootdir" "$_imagefile"
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