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-rw-r--r--target/linux/bcm53xx/base-files/lib/upgrade/platform.sh9
1 files changed, 7 insertions, 2 deletions
diff --git a/target/linux/bcm53xx/base-files/lib/upgrade/platform.sh b/target/linux/bcm53xx/base-files/lib/upgrade/platform.sh
index e53c2513d2..88629549dc 100644
--- a/target/linux/bcm53xx/base-files/lib/upgrade/platform.sh
+++ b/target/linux/bcm53xx/base-files/lib/upgrade/platform.sh
@@ -152,12 +152,17 @@ platform_pre_upgrade() {
echo "Unable to find \"linux\" partition size"
exit 1
}
- linux_length=$((0x$linux_length + 28))
+ linux_length=$((0x$linux_length))
+ local kernel_length=$(wc -c $dir/kernel | cut -d ' ' -f 1)
+ [ $kernel_length -gt $linux_length ] && {
+ echo "New kernel doesn't fit \"linux\" partition."
+ return
+ }
rm -f /tmp/null.bin
rm -f /tmp/kernel.trx
touch /tmp/null.bin
otrx create /tmp/kernel.trx \
- -f $dir/kernel -b $linux_length \
+ -f $dir/kernel -b $(($linux_length + 28)) \
-f /tmp/null.bin
# Prepare UBI image (drop unwanted extra blocks)