[package] base-files: ensure that /sys is available during sysupgrade, some essential...

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@32587 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/package/base-files/files/lib/upgrade/common.sh b/package/base-files/files/lib/upgrade/common.sh
index 0a92aad..e6de348 100644 (file)
--- a/package/base-files/files/lib/upgrade/common.sh
+++ b/package/base-files/files/lib/upgrade/common.sh
@@ -35,12 +35,14 @@ install_bin() { # <file> [ <symlink> ... ]
 
 pivot() { # <new_root> <old_root>
        mount | grep "on $1 type" 2>&- 1>&- || mount -o bind $1 $1
-       mkdir -p $1$2 $1/proc $1/dev $1/tmp $1/overlay && \
+       mkdir -p $1$2 $1/proc $1/sys $1/dev $1/tmp $1/overlay && \
        mount -o move /proc $1/proc && \
        pivot_root $1 $1$2 || {
         umount $1 $1
                return 1
        }
+
+       mount -o move $2/sys /sys
        mount -o move $2/dev /dev
        mount -o move $2/tmp /tmp
        mount -o move $2/overlay /overlay 2>&-
@@ -83,6 +85,8 @@ kill_remaining() { # [ <signal> ]
 
        local stat
        for stat in /proc/[0-9]*/stat; do
+               [ -f "$stat" ] || continue
+
                local pid name state ppid rest
                read pid name state ppid rest < $stat
                name="${name#(}"; name="${name%)}"