[openwrt/openwrt] base-files: make sure tools are present in sysupgrade ramdisk

[LEDE Commits]

dangole pushed a commit to openwrt/openwrt.git, branch master:
https://git.openwrt.org/2baded9ecc3434abadec43bbcc0aca95a12deddd

commit 2baded9ecc3434abadec43bbcc0aca95a12deddd
Author: Daniel Golle <daniel at makrotopia.org>
AuthorDate: Tue Feb 22 18:04:34 2022 +0000

    base-files: make sure tools are present in sysupgrade ramdisk
    
    Not all targets create /var/lock or touch /var/lock/fw_printenv.lock in
    their platform.sh. This is problematic as fw_printenv then fails in
    case /var/lock/fw_printenv.lock has not been created by previous calls
    to fw_printenv/fw_setenv before sysupgrade is run.
    
    Targets using fw_printenv/fw_setenv during sysupgrade:
     * ath79/*
     * ipq40xx/*
     * ipq806x/*
     * kirkwood/*
     * layerscape/*
     * mediatek/mt7622
     * mvebu/*
     * ramips/*
     * realtek/*
    
    Targets currently using additional steps in /lib/upgrade/platform.sh
    to make sure /var/lock/fw_printenv.lock (or at least /var/lock)
    actually exists:
     * ath79/* (openmesh devices)
     * ipq40xx/* (linksys devices)
     * ipq806x/* (linksys devices)
     * kirkwood/* (linksys devices)
     * layerscape/*
     * mvebu/cortexa9 (linksys devices)
    
    Given that accessing the U-Boot environment during sysupgrade is not
    uncommon and the situation across targets is currently quite diverse,
    just make sure both tools as well fw_env.config are always copied to
    the ramdisk used for sysupgrade. Also make sure /var/lock always
    exists.
    
    This now allows to remove copying of fw_printenv/fw_setenv as well as
    fw_env.config, creation of /var/lock or even /var/lock/fw_printenv.lock
    from lib/upgrade/platform.sh or files included there.
    
    As the same applies also to 'fwtool' which is used by generic eMMC
    sysupgrade, also always copy that to ramdisk.
    
    Signed-off-by: Daniel Golle <daniel at makrotopia.org>
---
 package/base-files/files/lib/upgrade/stage2 | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/package/base-files/files/lib/upgrade/stage2 b/package/base-files/files/lib/upgrade/stage2
index 74edd61104..5e0d73631b 100755
--- a/package/base-files/files/lib/upgrade/stage2
+++ b/package/base-files/files/lib/upgrade/stage2
@@ -46,13 +46,19 @@ switch_to_ramfs() {
 		ubiupdatevol ubiattach ubiblock ubiformat		\
 		ubidetach ubirsvol ubirmvol ubimkvol			\
 		snapshot snapshot_tool date logger			\
+		/usr/sbin/fw_printenv /usr/bin/fwtool			\
 		$RAMFS_COPY_LOSETUP $RAMFS_COPY_LVM			\
 		$RAMFS_COPY_BIN
 	do
 		local file="$(command -v "$binary" 2>/dev/null)"
 		[ -n "$file" ] && install_bin "$file"
 	done
-	install_file /etc/resolv.conf /lib/*.sh /lib/functions/*.sh /lib/upgrade/*.sh /lib/upgrade/do_stage2 /usr/share/libubox/jshn.sh $RAMFS_COPY_DATA
+	install_file /etc/resolv.conf /lib/*.sh /lib/functions/*.sh	\
+		/lib/upgrade/*.sh /lib/upgrade/do_stage2 		\
+		/usr/share/libubox/jshn.sh /usr/sbin/fw_setenv		\
+		/etc/fw_env.config $RAMFS_COPY_DATA
+
+	mkdir -p $RAM_ROOT/var/lock
 
 	[ -L "/lib64" ] && ln -s /lib $RAM_ROOT/lib64