diff options
| -rw-r--r-- | package/base-files/files/lib/upgrade/common.sh | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/package/base-files/files/lib/upgrade/common.sh b/package/base-files/files/lib/upgrade/common.sh index 5eb7b23a83..a5c27dc2fb 100644 --- a/package/base-files/files/lib/upgrade/common.sh +++ b/package/base-files/files/lib/upgrade/common.sh @@ -106,6 +106,17 @@ get_image() { # <source> [ <command> ] $cmd <"$from" } +get_image_dd() { + local from="$1"; shift + + ( + exec 3>&2 + ( exec 3>&2; get_image "$from" 2>&1 1>&3 | grep -v -F ' Broken pipe' ) 2>&1 1>&3 \ + | ( exec 3>&2; dd "$@" 2>&1 1>&3 | grep -v -E ' records (in|out)') 2>&1 1>&3 + exec 3>&- + ) +} + get_magic_word() { (get_image "$@" | dd bs=2 count=1 | hexdump -v -n 2 -e '1/1 "%02x"') 2>/dev/null } |