mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-30 02:29:01 +00:00
20 lines
546 B
Bash
20 lines
546 B
Bash
|
#!/bin/sh
|
||
|
|
|
||
|
|
OUTPUT_FILE=$1
|
||
|
|
KERNEL_FILE=$2
|
||
|
|
RECOVERY_FILE=$3
|
||
|
|
ROOTFS_FILE=$4
|
||
|
|
|
||
|
|
BS=512
|
||
|
|
|
||
|
|
#RECOVERY_OFFSET= kernel size / BS = 20M / 512 (blocks)
|
||
|
|
RECOVERY_OFFSET=40960
|
||
|
|
|
||
|
|
#ROOTFS_OFFSET = RECOVERY_OFFSET + (RECOVERY_SIZE / BS)
|
||
|
|
# = 40960 + (10M / 512) (blocks)
|
||
|
|
ROOTFS_OFFSET=61440
|
||
|
|
dd bs="$BS" of="$OUTPUT_FILE" if="$KERNEL_FILE"
|
||
|
|
dd bs="$BS" of="$OUTPUT_FILE" if="$RECOVERY_FILE" seek="$RECOVERY_OFFSET"
|
||
|
|
dd bs="$BS" of="$OUTPUT_FILE" if="$ROOTFS_FILE" seek="$ROOTFS_OFFSET"
|
||
|
|
dd if=/dev/zero of="$OUTPUT_FILE" bs=128k count=1 oflag=append conv=notrunc
|