octeon: sysupgrade: fix test for rootfs device

Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@43522 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/target/linux/octeon/base-files/lib/upgrade/platform.sh b/target/linux/octeon/base-files/lib/upgrade/platform.sh
index d81d7fd..1df3d17 100755 (executable)
--- a/target/linux/octeon/base-files/lib/upgrade/platform.sh
+++ b/target/linux/octeon/base-files/lib/upgrade/platform.sh
@@ -36,7 +36,7 @@ platform_do_upgrade() {
        local board=$(octeon_board_name)
        local rootfs="$(platform_get_rootfs)"
 
-       [ -d "${rootfs}" ] || return 1
+       [ -b "${rootfs}" ] || return 1
 
        case "$board" in
        erlite)