rochchip px30刷机后卡在系统引导界面。具体系统引导日志为：

 

 

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[    2.403866] Run /init as init process
[    2.873149] dwmmc_rockchip ff390000.dwmmc: Successfully tuned phase to 207
[    2.874129] mmc1: new HS200 MMC card at address 0001
[    2.877446] mmcblk1: mmc1:0001 08A391 7.22 GiB
[    2.879300] mmcblk1boot0: mmc1:0001 08A391 partition 1 4.00 MiB
[    2.881151] mmcblk1boot1: mmc1:0001 08A391 partition 2 4.00 MiB
[    2.882121] mmcblk1rpmb: mmc1:0001 08A391 partition 3 4.00 MiB, chardev (241:0)
[    2.889840]  mmcblk1: p1 p2 p3 p4 p5 p6 p7 p8 p9 p10 p11 p12 p13 p14
Device /dev/mmcblk1p9 is not a valid VERITY device.
system enter halt error(0)
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[    2.812287] device-mapper: verity: sha256 using implementation "sha256-ce"
Verity OK
 
[    2.824325] EXT4-fs (mmcblk1p11): recovery complete
 
[    2.824840] EXT4-fs (mmcblk1p11): mounted filesystem with ordered data mode. Opts: errors=continue
 
[    2.832181] device-mapper: verity: 179:9: data block 0 is corrupted
 
[    2.832913] SQUASHFS error: squashfs_read_data failed to read block 0x0
 
[    2.833507] squashfs: SQUASHFS error: unable to read squashfs_super_block
 
mount: mounting /dev/mapper/vroot on /root failed: Input/output error
 
system enter halt error(0)
 
[    2.840945] cpu cpu0: min=816000, max=816000
[    2.857804] cpu cpu0: min=816000, max=816000
[    2.885917] vendor storage:20190527 ret = 0
[    2.890964] reboot: Restarting system

　　

根据提供的启动日志和搜索结果，我们可以分析出以下rootfs镜像检查不通过的问题：

dm-verity校验失败： 日志中显示device-mapper: verity: 179:9: data block 0 is corrupted，这表明在使用dm-verity进行数据完整性校验时，发现数据块0已损坏。这可能是由于rootfs镜像文件损坏或者在传输过程中发生了错误。

 

通过搜索，可以在uboot的命令行内通过bootargs禁用这个校验机制，或替换默认的初始化程序/init .搜到了4种方法：

rdinit=/bin/bash

rdinit=/sbin/init

androidboot.veritymode=disabled

dm_verity.verify=0   

经测试rdinit=/bin/bash或rdinit=/sbin/init   ，方式可以生效，=/bin/bash是修改了系统引导后执行的默认程序，可能肯会导致系统内一些初始化项目没有完成。/sbin/init是OPENWRT的正常初始化文件。

 

以下二条命令即可实现正常引导：

setenv bootargs console=ttyFIQ0,1500000 earlycon=uart8250,mmio32,0xff160000 system=/dev/mmcblk1p9 root=/dev/mmcblk1p9  rdinit=/sbin/init rootdelay=1 rw rootwait net.ifnames=0

mmc read 0x03a80000 0x00010000 0x014000;bootm 0x03a80000

 

 

 

其他办法：编辑镜像，对以下关键值清零。应该可以直接编辑引导程序，/sbin/initab  ， /etc/inittab    这些都没有测试。

Method 1 - Manually patching boot.img using hex editor

 

Requirements

  • Ideal for devices with Android Verified Boot 1.0 (commonly found in Android 8)
  • Stock boot.img for your phone model (it's best it's for your Build Number / Variant ). You can extract from the stock ROM / firmware of your device (you may check our firmware collection) OR backup from your device using any method at the forum e.g Wwr_Mtk, Miracle Box, CM2, Nck Box Pro etc
  • Hxd hex editor ; download @ https://mh-nexus.de/en/hxd/
  • Install adb and fastboot

 

Follow the steps below to patch boot.img manually to remove/disable dm-verity

    1. Launch Hxd hex editor tool
    2. Drag and drop your boot.img onto HxD hex editor window
    3. Click Search > Replace
    4. In the Replace windows, Click the Hex-values tab and input the following below

      Search for    2C 76 65 72 69 66 79
      replace with  00 00 00 00 00 00 00

 

android刷机后卡住也可以用这个办法解决。

参考文章：https://www.hovatek.com/forum/thread-32719.html