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-rw-r--r--package/base-files/files/lib/upgrade/nand.sh20
1 files changed, 16 insertions, 4 deletions
diff --git a/package/base-files/files/lib/upgrade/nand.sh b/package/base-files/files/lib/upgrade/nand.sh
index 7cf95c0139..2b766480d7 100644
--- a/package/base-files/files/lib/upgrade/nand.sh
+++ b/package/base-files/files/lib/upgrade/nand.sh
@@ -117,6 +117,9 @@ nand_restore_config() {
nand_upgrade_prepare_ubi() {
local rootfs_length="$1"
local rootfs_type="$2"
+ local rootfs_data_max="$(fw_printenv -n rootfs_data_max 2>/dev/null)"
+ [ -n "$rootfs_data_max" ] && rootfs_data_max=$(($rootfs_data_max))
+
local kernel_length="$3"
local has_env="${4:-0}"
@@ -176,11 +179,11 @@ nand_upgrade_prepare_ubi() {
# update rootfs
if [ -n "$rootfs_length" ]; then
- local root_size_param
+ local rootfs_size_param
if [ "$rootfs_type" = "ubifs" ]; then
- root_size_param="-m"
+ rootfs_size_param="-m"
else
- root_size_param="-s $rootfs_length"
+ rootfs_size_param="-s $rootfs_length"
fi
if ! ubimkvol /dev/$ubidev -N $CI_ROOTPART $rootfs_size_param; then
echo "cannot create rootfs volume"
@@ -190,7 +193,16 @@ nand_upgrade_prepare_ubi() {
# create rootfs_data for non-ubifs rootfs
if [ "$rootfs_type" != "ubifs" ]; then
- if ! ubimkvol /dev/$ubidev -N rootfs_data -m; then
+ local availeb=$(cat /sys/devices/virtual/ubi/$ubidev/avail_eraseblocks)
+ local ebsize=$(cat /sys/devices/virtual/ubi/$ubidev/eraseblock_size)
+ local avail_size=$(( $availeb * $ebsize ))
+ local rootfs_data_size_param="-m"
+ if [ -n "$rootfs_data_max" ] &&
+ [ "$rootfs_data_max" != "0" ] &&
+ [ "$rootfs_data_max" -le "$avail_size" ]; then
+ rootfs_data_size_param="-s $rootfs_data_max"
+ fi
+ if ! ubimkvol /dev/$ubidev -N rootfs_data $rootfs_data_size_param; then
echo "cannot initialize rootfs_data volume"
return 1
fi