找不到init进程

uboot配置如下：
baudrate=115200
bootargs=console=ttySAC0,115200 root=/dev/mtdblock3 rootfstype=yaffs2
bootcmd=nand read 30000000 kernel;bootm 30000000
bootdelay=5
ethact=dm9000
ethaddr=00:0c:29:4d:e4:f4
fileaddr=30000000
filesize=7DD000
ipaddr=192.168.1.130
machid=16a
mtddevname=u-boot
mtddevnum=0
mtdids=nand0=jz2440-0
mtdparts=mtdparts=jz2440-0:256k(u-boot),128k(params),4m(kernel),-(rootfs)
netmask=255.255.255.0
partition=nand0,0
serverip=192.168.1.120
stderr=serial
stdin=serial
stdout=serial



根文件系统挂载出错

sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver
NET: Registered protocol family 17
Loading compiled-in X.509 certificates
hctosys: unable to open rtc device (rtc0)
ALSA device list:
  No soundcards found.
yaffs: dev is 32505859 name is "mtdblock3" rw
yaffs: passed flags ""
VFS: Mounted root (yaffs2 filesystem) on device 31:3.
Freeing unused kernel memory: 204K
This architecture does not have kernel memory protection.
Run /***in/init as init process
Run /etc/init as init process
Run /bin/init as init process
Run /bin/sh as init process
Kernel panic - not syncing: No working init found.  Try passing init= option to kernel. See Linux Documentation/admin-guide/init.rst for guidance.
CPU: 0 PID: 1 Comm: swapper Not tainted 4.19.8 #3
Hardware name: SMDK2440
[] (unwind_backtrace) from [] (show_stack+0x10/0x18)
[] (show_stack) from [] (dump_stack+0x18/0x24)
[] (dump_stack) from [] (panic+0xc0/0x248)
[] (panic) from [] (kernel_init+0xcc/0xf4)
[] (kernel_init) from [] (ret_from_fork+0x14/0x34)
Exception stack(0xc381ffb0 to 0xc381fff8)
ffa0:                                     00000000 00000000 00000000 00000000
ffc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
ffe0: 00000000 00000000 00000000 00000000 00000013 00000000
---[ end Kernel panic - not syncing: No working init found.  Try passing init= option to kernel. See Linux Documentation/admin-guide/init.rst for guidance. ]---



1、根文件挂载成功，却始终找不到init进程，我仔细检查了文件系统，init进程是有的，为什么就是挂载不上呢？
2、我在烧写文件系统时nand flash 出现大量坏块，这是怎么回事？

我看帖子 之前的解决连接已经失效

还请解惑。。。
这是我制作的文件系统  https://pan.baidu.com/s/1WTdVfU3hGnHbdKduMyLhTQ

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