Busybox prerm scripts create temp directory and fill with
symlinks to common utilities in order to upgrade itself, PATH
is exported but dpkg didn't take a look of this links and fails.

In order to fix,

        Changed temp directory to /usr/loca/bin in debian packages.
        Added missing links for utilities tar, find, tail, cut.

Busybox syslog prerm script tries to stop the daemon but if already
stopped returns 1 then causes that dpkg fails because it expects 0.

In order to fix,

        Added workaround to exit 0 in debian packages.

[YOCTO #6768]

Signed-off-by: Aníbal Limón <anibal.li...@linux.intel.com>
---
 meta/recipes-core/busybox/busybox.inc | 46 ++++++++++++++++++++++++++++++++++-
 1 file changed, 45 insertions(+), 1 deletion(-)

diff --git a/meta/recipes-core/busybox/busybox.inc 
b/meta/recipes-core/busybox/busybox.inc
index bd66e4f..61f12b4 100644
--- a/meta/recipes-core/busybox/busybox.inc
+++ b/meta/recipes-core/busybox/busybox.inc
@@ -377,13 +377,46 @@ pkg_postinst_${PN} () {
                        fi
                done
        fi
+
+       # Workaround for deb packages, clean
+        if [ "$DPKG_MAINTSCRIPT_PACKAGE"x != x ]; then
+               tmpdir='/usr/local/bin'
+               rm -f $tmpdir/[
+               rm -f $tmpdir/test
+               rm -f $tmpdir/head
+               rm -f $tmpdir/sh
+               rm -f $tmpdir/basename
+               rm -f $tmpdir/echo
+               rm -f $tmpdir/mv
+               rm -f $tmpdir/ln
+               rm -f $tmpdir/dirname
+               rm -f $tmpdir/rm
+               rm -f $tmpdir/sed
+               rm -f $tmpdir/sort
+               rm -f $tmpdir/grep
+               rm -f $tmpdir/tar
+               rm -f $tmpdir/find
+               rm -f $tmpdir/tail
+               rm -f $tmpdir/cut
+        fi
 }
 
 pkg_prerm_${PN} () {
        # This is so you can make busybox commit suicide - removing busybox 
with no other packages
        # providing its files, this will make update-alternatives work, but the 
update-rc.d part
        # for syslog, httpd and/or udhcpd will fail if there is no other 
package providing sh
-       tmpdir=`mktemp -d /tmp/busyboxrm-XXXXXX`
+
+        # Workaround for deb packages, dpkg don't take into account exported 
PATH variable,
+        # use instead local directory.
+        if [ "$DPKG_MAINTSCRIPT_PACKAGE"x == x ]; then
+               tmpdir=`mktemp -d /tmp/busyboxrm-XXXXXX`
+        else
+               tmpdir='/usr/local/bin'
+               if [ ! -e $tmpdir ]; then
+                       mkdir -p $tmpdir
+               fi
+       fi
+
        ln -s /bin/busybox $tmpdir/[
        ln -s /bin/busybox $tmpdir/test
        ln -s /bin/busybox $tmpdir/head
@@ -397,6 +430,11 @@ pkg_prerm_${PN} () {
        ln -s /bin/busybox $tmpdir/sed
        ln -s /bin/busybox $tmpdir/sort
        ln -s /bin/busybox $tmpdir/grep
+       ln -s /bin/busybox $tmpdir/tar
+       ln -s /bin/busybox $tmpdir/find
+       ln -s /bin/busybox $tmpdir/tail
+       ln -s /bin/busybox $tmpdir/cut
+
        export PATH=$PATH:$tmpdir
 }
 
@@ -405,6 +443,12 @@ pkg_prerm_${PN}-syslog () {
        if test "x$D" = "x"; then
                if test "$1" = "upgrade" -o "$1" = "remove"; then
                        /etc/init.d/syslog stop
+
+                       # Workaround for deb packages, if syslog is already 
stopped returns
+                       # 1 but dpkg expects 0 and then fails.
+                       if [ "$DPKG_MAINTSCRIPT_PACKAGE"x != x ]; then
+                               exit 0
+                       fi
                fi
        fi
 }
-- 
1.9.1

-- 
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