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grub-btrfs: New package

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This kind of grub addon will extend the grub boot menu by a additional
submenu where a BTRFS snapshot can be selected to directly use as root
volume and boot into it.

The grub-btrfsd daemon is using inotify(tools) to watch the snapshot directory for
new or deleted snapshots and calls grub-mkconfig to adjust the snapshot grub submenu

Signed-off-by: Stefan Schantl <stefan.schantl@ipfire.org>
Signed-off-by: Arne Fitzenreiter <arne_f@ipfire.org>
This commit is contained in:
Stefan Schantl
2024-03-24 13:39:53 +01:00
committed by Arne Fitzenreiter
parent 32d81fdc2e
commit a6d5b71f2c
6 changed files with 162 additions and 0 deletions
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14
config/rootfiles/common/grub-btrfs Normal file
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@@ -0,0 +1,14 @@
boot/grub/grubenv
etc/default/grub-btrfs
etc/default/grub-btrfs/config
etc/grub.d/41_snapshots-btrfs
usr/bin/grub-btrfsd
#usr/lib/systemd/system/grub-btrfsd.service
#usr/share/doc/grub-btrfs
#usr/share/doc/grub-btrfs/README.md
#usr/share/doc/grub-btrfs/initramfs-overlayfs.md
#usr/share/licenses
#usr/share/licenses/grub-btrfs
#usr/share/licenses/grub-btrfs/LICENSE
#usr/share/man/man8/grub-btrfs.8.bz2
#usr/share/man/man8/grub-btrfsd.8.bz2

4
config/rootfiles/common/x86_64/initscripts
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@@ -26,6 +26,7 @@ etc/rc.d/init.d/firewall
etc/rc.d/init.d/firstsetup
etc/rc.d/init.d/fsresize
etc/rc.d/init.d/functions
etc/rc.d/init.d/grub-btrfsd
etc/rc.d/init.d/halt
etc/rc.d/init.d/ipsec
etc/rc.d/init.d/leds
@@ -92,6 +93,7 @@ etc/rc.d/init.d/vnstat
etc/rc.d/init.d/waitdrives
etc/rc.d/init.d/wlanclient
#etc/rc.d/rc0.d
etc/rc.d/rc0.d/K01grub-btrfsd
#etc/rc.d/rc0.d/K01imspetor
#etc/rc.d/rc0.d/K01motion
#etc/rc.d/rc0.d/K01vdradmin
@@ -135,10 +137,12 @@ etc/rc.d/rc3.d/S32apache
etc/rc.d/rc3.d/S40fcron
etc/rc.d/rc3.d/S98rc.local
#etc/rc.d/rc3.d/S98sslh
etc/rc.d/rc3.d/S99grub-btrfsd
#etc/rc.d/rc3.d/S99imspetor
#etc/rc.d/rc3.d/S99motion
#etc/rc.d/rc3.d/S99vdradmin
#etc/rc.d/rc6.d
etc/rc.d/rc6.d/K01grub-btrfsd
#etc/rc.d/rc6.d/K01imspetor
#etc/rc.d/rc6.d/K01motion
#etc/rc.d/rc6.d/K01vdradmin

79
lfs/grub-btrfs Normal file
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@@ -0,0 +1,79 @@
###############################################################################
# #
# IPFire.org - A linux based firewall #
# Copyright (C) 2007-2023 IPFire Team <info@ipfire.org> #
# #
# This program is free software: you can redistribute it and/or modify #
# it under the terms of the GNU General Public License as published by #
# the Free Software Foundation, either version 3 of the License, or #
# (at your option) any later version. #
# #
# This program is distributed in the hope that it will be useful, #
# but WITHOUT ANY WARRANTY; without even the implied warranty of #
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #
# GNU General Public License for more details. #
# #
# You should have received a copy of the GNU General Public License #
# along with this program. If not, see <http://www.gnu.org/licenses/>. #
# #
###############################################################################
###############################################################################
# Definitions
###############################################################################
include Config
VER = 4.13
THISAPP = grub-btrfs-$(VER)
DL_FILE = $(THISAPP).tar.gz
DL_FROM = $(URL_IPFIRE)
DIR_APP = $(DIR_SRC)/$(THISAPP)
TARGET = $(DIR_INFO)/$(THISAPP)
###############################################################################
# Top-level Rules
###############################################################################
objects = $(DL_FILE)
$(DL_FILE) = $(DL_FROM)/$(DL_FILE)
$(DL_FILE)_BLAKE2 = e2f11a0a8282e3ec8ff8223e3bad70b5d5c5e81b4d740a1bf3554db412dbe48a8a0f216f4e6c65ae1d11c01a27b8b92bae9b470c60d2389505ce089511536e1a
install : $(TARGET)
check : $(patsubst %,$(DIR_CHK)/%,$(objects))
download :$(patsubst %,$(DIR_DL)/%,$(objects))
b2 : $(subst %,%_BLAKE2,$(objects))
dist:
@$(PAK)
###############################################################################
# Downloading, checking, b2sum
###############################################################################
$(patsubst %,$(DIR_CHK)/%,$(objects)) :
@$(CHECK)
$(patsubst %,$(DIR_DL)/%,$(objects)) :
@$(LOAD)
$(subst %,%_BLAKE2,$(objects)) :
@$(B2SUM)
###############################################################################
# Installation Details
###############################################################################
$(TARGET) : $(patsubst %,$(DIR_DL)/%,$(objects))
@$(PREBUILD)
@rm -rf $(DIR_APP) && cd $(DIR_SRC) && tar axf $(DIR_DL)/$(DL_FILE)
$(UPDATE_AUTOMAKE)
cd $(DIR_APP) && make install
@rm -rf $(DIR_APP)
@$(POSTBUILD)

3
lfs/initscripts
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@@ -91,6 +91,7 @@ $(TARGET) :
install -v -m 755 $$i /etc/rc.d/helper/; \
done
ln -sf ../init.d/grub-btrfsd /etc/rc.d/rc0.d/K01grub-btrfsd
ln -sf ../init.d/imspetor /etc/rc.d/rc0.d/K01imspetor
ln -sf ../init.d/motion /etc/rc.d/rc0.d/K01motion
ln -sf ../init.d/vdradmin /etc/rc.d/rc0.d/K01vdradmin
@@ -132,10 +133,12 @@ $(TARGET) :
ln -sf ../init.d/fcron /etc/rc.d/rc3.d/S40fcron
ln -sf ../../sysconfig/rc.local /etc/rc.d/rc3.d/S98rc.local
ln -sf ../init.d/sslh /etc/rc.d/rc3.d/S98sslh
ln -sf ../init.d/grub-btrfsd /etc/rc.d/rc3.d/S99grub-btrfsd
ln -sf ../init.d/imspetor /etc/rc.d/rc3.d/S99imspetor
ln -sf ../init.d/motion /etc/rc.d/rc3.d/S99motion
ln -sf ../init.d/vdradmin /etc/rc.d/rc3.d/S99vdradmin
ln -sf ../init.d/grub-btrfsd /etc/rc.d/rc6.d/K01grub-btrfsd
ln -sf ../init.d/imspetor /etc/rc.d/rc6.d/K01imspetor
ln -sf ../init.d/motion /etc/rc.d/rc6.d/K01motion
ln -sf ../init.d/vdradmin /etc/rc.d/rc6.d/K01vdradmin

1
make.sh
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@@ -1714,6 +1714,7 @@ buildipfire() {
lfsmake2 wsdd
lfsmake2 btrfs-progs
lfsmake2 inotify-tools
lfsmake2 grub-btrfs
# Kernelbuild ... current we have no platform that need
# multi kernel builds so KCFG is empty

61
src/initscripts/system/grub-btrfsd Normal file
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@@ -0,0 +1,61 @@
#!/bin/sh
###############################################################################
# #
# IPFire.org - A linux based firewall #
# Copyright (C) 2007-2024 IPFire Team <info@ipfire.org> #
# #
# This program is free software: you can redistribute it and/or modify #
# it under the terms of the GNU General Public License as published by #
# the Free Software Foundation, either version 3 of the License, or #
# (at your option) any later version. #
# #
# This program is distributed in the hope that it will be useful, #
# but WITHOUT ANY WARRANTY; without even the implied warranty of #
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #
# GNU General Public License for more details. #
# #
# You should have received a copy of the GNU General Public License #
# along with this program. If not, see <http://www.gnu.org/licenses/>. #
# #
###############################################################################
. /etc/sysconfig/rc
. ${rc_functions}
SNAPSHOTDIR="/.snapshots"
PIDFILE="/run/grub-btrfsd.pid"
root_is_btrfs() {
[ "$(stat -f --format="%T" /)" == "btrfs" ] || return 1
return 0
}
case "$1" in
start)
root_is_btrfs || exit 0
boot_mesg "Starting Grub/Btrfs snapshot manager..."
loadproc -b -p "$PIDFILE" /usr/bin/grub-btrfsd --syslog "$SNAPSHOTDIR"
# Store the gained PID to the defined pidfile
echo "$!" > "$PIDFILE"
;;
stop)
boot_mesg "Stopping grub-btrfsd..."
killproc -p "$PIDFILE" /usr/bin/grub-btrfsd
sleep 1;
;;
restart)
$0 stop
sleep 2
$0 start
;;
*)
echo "Usage: $0 {start|stop|restart}"
exit 1
;;
esac