[LEDE-DEV] [PATCH 2/2] Octeon: Do not create backup for vmlinux64.bin on Edgerouter.

[Daniel Danzberger]

This patch avoids sysupgrade to fail and break the boot image.
This patch dosen't affact the Edgerouter Lite.

The boot partition on the internal mmc flash is only 8.3M large.
Device         Boot  Start     End Sectors  Size Id Type
/dev/mmcblk0p1 *        63   17135   17073  8.3M 83 Linux

Creating a backup of vmlinux64.bin might use to much space,
when using a kernel image > 4.2 MBytes.
This results in a "no space left on device" error when sysupgrade
flashes the new kernel image, leaving an incomplete kernel image in the boot partition.
This prevents further booting.

Signed-off-by: Daniel Danzberger <daniel at dd-wrt.com>
---
 target/linux/octeon/base-files/lib/upgrade/platform.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/target/linux/octeon/base-files/lib/upgrade/platform.sh b/target/linux/octeon/base-files/lib/upgrade/platform.sh
index 91763ce..e763763 100755
--- a/target/linux/octeon/base-files/lib/upgrade/platform.sh
+++ b/target/linux/octeon/base-files/lib/upgrade/platform.sh
@@ -42,7 +42,7 @@ platform_do_flash() {
 	mkdir -p /boot
 	mount -t vfat /dev/$kernel /boot
 
-	[ -f /boot/vmlinux.64 -a ! -L /boot/vmlinux.64 ] && {
+	[ "$board" != "er" -a -f /boot/vmlinux.64 -a ! -L /boot/vmlinux.64 ] && {
 		mv /boot/vmlinux.64 /boot/vmlinux.64.previous
 		mv /boot/vmlinux.64.md5 /boot/vmlinux.64.md5.previous
 	}
-- 
1.9.1