base-files: sysupgrade: fix handing get_image unpack commands

On bcm53xx and brcm47xx, commands are passed to default_do_upgrade that
expect the image to be passed on stdin, rather than as an argument.

Fixes: 30f61a34b4 ("base-files: always use staged sysupgrade")
Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>
This commit is contained in:
Matthias Schiffer 2018-06-10 15:41:52 +02:00
parent c22117a791
commit 3b6f865b01
No known key found for this signature in database
GPG key ID: 16EF3F64CB201D9C

View file

@ -78,18 +78,18 @@ rootfs_type() {
get_image() { # <source> [ <command> ]
local from="$1"
local cat="$2"
local cmd="$2"
if [ -z "$cat" ]; then
if [ -z "$cmd" ]; then
local magic="$(dd if="$from" bs=2 count=1 2>/dev/null | hexdump -n 2 -e '1/1 "%02x"')"
case "$magic" in
1f8b) cat="zcat";;
425a) cat="bzcat";;
*) cat="cat";;
1f8b) cmd="zcat";;
425a) cmd="bzcat";;
*) cmd="cat";;
esac
fi
$cat "$from" 2>/dev/null
cat "$from" 2>/dev/null | $cmd
}
get_magic_word() {