gistfile1.txt

--- a/package/base-files/files/etc/init.d/system
+++ b/package/base-files/files/etc/init.d/system
@@ -22,9 +22,11 @@ system_config() {

        echo "$hostname" > /proc/sys/kernel/hostname
        [ -z "$conloglevel" -a -z "$buffersize" ] || dmesg ${conloglevel:+-n $conloglevel} ${buffersize:+-s $buffersize}
-       echo "$timezone" > /tmp/TZ
-       [ -n "$zonename" ] && [ -f "/usr/share/zoneinfo/$zonename" ] && \
-               ln -sf "/usr/share/zoneinfo/$zonename" /tmp/localtime && rm -f /tmp/TZ
+       if [ -n "$zonename" ] && [ -f "/usr/share/zoneinfo/$zonename" ]; then
+               ln -sf "/usr/share/zoneinfo/$zonename" /tmp/localtime
+       else
+               echo "$timezone" > /tmp/localtime
+       fi

        # apply timezone to kernel
        hwclock -u --systz