小米路由内核开发环境搭建
来自Jack's Lab
(版本间的差异)
第11行: | 第11行: | ||
− | 得到的 vmlinuz 是一个 LZMA 压缩过的内核+initramfs,Build 日期为 Wed Apr 30 18:03:21 CST 2014 的CFE是可以直接加载后启动的(刷过 0.4.92版本固件的,都是这个版本的CFE) | + | 得到的 vmlinuz 是一个 LZMA 压缩过的内核+initramfs,Build 日期为 Wed Apr 30 18:03:21 CST 2014 的CFE是可以直接加载后启动的(刷过 0.4.92版本固件的,都是这个版本的CFE): |
+ | |||
+ | <source lang=bash> | ||
+ | CFE version v1.0.4 | ||
+ | BSP: 6.37.14.34 (r415984) based on BBP 1.0.37 for BCM947XX (32bit,SP,) | ||
+ | Build Date: Wed Apr 30 18:03:21 CST 2014 (szy@shenzhiyong-ct) | ||
+ | Copyright (C) 2000-2008 Broadcom Corporation. | ||
+ | |||
+ | ...... | ||
+ | |||
+ | Device eth0: hwaddr 8C-BE-BE-20-B7-48, ipaddr 192.168.1.1, mask 255.255.255.0 | ||
+ | gateway not set, nameserver not set | ||
+ | Startup canceled | ||
+ | xiaomi> ^C | ||
+ | xiaomi> boot -raw -z -addr=0x8000 -max=0x800000 192.168.1.2:vmlinuz | ||
+ | Loader:raw Filesys:tftp Dev:eth0 File:192.168.1.2:vmlinuz Options:(null) | ||
+ | Loading: ........ 5670784 bytes read | ||
+ | Entry at 0x00008000 | ||
+ | Closing network. | ||
+ | Starting program at 0x00008000 | ||
+ | console [ttyS0] enabled, bootconsole disabled | ||
+ | serial8250.0: ttyS1 at MMIO 0x18000400 (irq = 117) is a 16550 | ||
+ | ...... | ||
+ | </source> | ||
2014年6月6日 (五) 16:51的版本
当前路由刷入的固件版本为 0.4.58
则先从当前版本固件内 mkxqimage -x 解压出 vmlinuz.trx 去除 TRX 头:
comcat@jackslab:/work/openwrt/xiaomi/rom/0.4.58$ dd if=vmlinuz.trx of=vmlinuz bs=1 skip=28 记录了2834404+0 的读入 记录了2834404+0 的写出 2834404字节(2.8 MB)已复制,4.10377 秒,691 kB/秒
得到的 vmlinuz 是一个 LZMA 压缩过的内核+initramfs,Build 日期为 Wed Apr 30 18:03:21 CST 2014 的CFE是可以直接加载后启动的(刷过 0.4.92版本固件的,都是这个版本的CFE):
CFE version v1.0.4 BSP: 6.37.14.34 (r415984) based on BBP 1.0.37 for BCM947XX (32bit,SP,) Build Date: Wed Apr 30 18:03:21 CST 2014 (szy@shenzhiyong-ct) Copyright (C) 2000-2008 Broadcom Corporation. ...... Device eth0: hwaddr 8C-BE-BE-20-B7-48, ipaddr 192.168.1.1, mask 255.255.255.0 gateway not set, nameserver not set Startup canceled xiaomi> ^C xiaomi> boot -raw -z -addr=0x8000 -max=0x800000 192.168.1.2:vmlinuz Loader:raw Filesys:tftp Dev:eth0 File:192.168.1.2:vmlinuz Options:(null) Loading: ........ 5670784 bytes read Entry at 0x00008000 Closing network. Starting program at 0x00008000 console [ttyS0] enabled, bootconsole disabled serial8250.0: ttyS1 at MMIO 0x18000400 (irq = 117) is a 16550 ......
设置 nvram 参数 flag_tftp_bootup=on,则打开 CFE 首先尝试从 tftp server 加载内核:
root@XiaoQiang:/# nvram get flag_tftp_bootup off root@XiaoQiang:/# nvram set flag_tftp_bootup=on root@XiaoQiang:/# nvram commit