diff options
Diffstat (limited to 'target/linux/mediatek/filogic/base-files/lib/preinit/75_rootfs_prepare')
| -rw-r--r-- | target/linux/mediatek/filogic/base-files/lib/preinit/75_rootfs_prepare | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/target/linux/mediatek/filogic/base-files/lib/preinit/75_rootfs_prepare b/target/linux/mediatek/filogic/base-files/lib/preinit/75_rootfs_prepare new file mode 100644 index 0000000000..0a32073e0b --- /dev/null +++ b/target/linux/mediatek/filogic/base-files/lib/preinit/75_rootfs_prepare @@ -0,0 +1,35 @@ +# SPDX-License-Identifier: GPL-2.0-or-later OR BSD-2-Clause + +rootfs_create() { + local blocks + + blocks=$(cat /sys/class/ubi/ubi0/avail_eraseblocks) + [ -z "$blocks" ] && { + echo "Failed to read amount of available erase blocks" >&2 + return + } + + # Delete after getting available blocks: Make sure enough space is + # left to recreate these volumes. + ubirmvol /dev/ubi0 -N kernel_backup + ubirmvol /dev/ubi0 -N rootfs_backup + + # Use 90% of remaining flash size for "rootfs_data" + ubimkvol /dev/ubi0 -n 20 -N rootfs_data --lebs $((blocks / 100 * 90)) + mknod -m 0600 /dev/ubi0_20 c 250 21 +} + +rootfs_prepare() { + case $(board_name) in + netgear,wax220) + if ! ubinfo /dev/ubi0 -N rootfs_data &>/dev/null; then + echo "Creating \"rootfs_data\" UBI volume" + rootfs_create + fi + ;; + *) + ;; + esac +} + +boot_hook_add preinit_main rootfs_prepare |