sysupgrade: fixes broken pipe error during sysupgade

Signed-off-by: John Crispin <blogic@openwrt.org>
SVN-Revision: 36548

diff --git a/package/base-files/files/lib/upgrade/common.sh b/package/base-files/files/lib/upgrade/common.sh
index fbe54a5ee5f32bc225cd0204b78bc8231880adb3..6bb36db489302bbd592e1a261ee16e2c9a6e8f53 100644 (file)
--- a/package/base-files/files/lib/upgrade/common.sh
+++ b/package/base-files/files/lib/upgrade/common.sh
@@ -157,14 +157,14 @@ get_image() { # <source> [ <command> ]
                *) cmd="cat";;
        esac
        if [ -z "$conc" ]; then
-               local magic="$(eval $cmd $from | dd bs=2 count=1 2>/dev/null | hexdump -n 2 -e '1/1 "%02x"')"
+               local magic="$(eval $cmd $from 2>/dev/null | dd bs=2 count=1 2>/dev/null | hexdump -n 2 -e '1/1 "%02x"')"
                case "$magic" in
                        1f8b) conc="zcat";;
                        425a) conc="bzcat";;
                esac
        fi
 
-       eval "$cmd $from ${conc:+| $conc}"
+       eval "$cmd $from 2>/dev/null ${conc:+| $conc}"
 }
 
 get_magic_word() {