devtmpfs: error mounting -2 这个问题有人遇到过吗

文件系统没mount上啊

请问一下楼主现在问题解决了吗？我也是这个问题{:3_65:}

Kernel panic - not syncing: No working init found.  Try passing init= option to kernel. See Linux Documentation/init.txt for guidance.

下面的内容是百度的：
init指定的是内核启起来后，进入系统中运行的第一个脚本，一般init=/linuxrc, 或者init=/etc/preinit，preinit的内容一般是创建console,null设备节点，运行init程序，挂载一些文件系统等等操作。请注意，很多初学者以为init=/linuxrc是固定写法，其实不然，/linuxrc指的是/目录下面的linuxrc脚本，一般是一个连接罢了。


或者uboot参数加上rw为：
.......console=ttyAMA0,115200 root=/dev/mtdblock2 rootfstype=jffs2 rw mtdparts=hi_sfc:1M(boot),.......

楼主。解决了吗。我也是遇到这个情况

Registering SWP/SWPB emulation handler
mmc1: cannot verify signal voltage switch
VFS: Mounted root (jffs2 filesystem) on device 31:2.
devtmpfs: error mounting -2
himci: tuning mmc1: valid phase shift [11, 8] Final Phase 1
mmc1: new ultra high speed SDR104 SDHC card at address aaaa
mmcblk0: mmc1:aaaa SP32G 29.7 GiB
mmcblk0: p1
Freeing unused kernel memory: 224K (c0560000 - c0598000)
Kernel panic - not syncing: No working init found.  Try passing init= option to kernel. See Linux Documentation/init.txt for guidance.
CPU: 1 PID: 1 Comm: swapper/0 Not tainted 3.18.20 #1
[] (unwind_backtrace) from [] (show_stack+0x10/0x14)
[] (show_stack) from [] (dump_stack+0x88/0x98)
[] (dump_stack) from [] (panic+0x9c/0x1fc)
[] (panic) from [] (cpu_die+0x0/0x80)
[] (cpu_die) from [<00000000>] (  (null))
CPU0: stopping
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.18.20 #1
[] (unwind_backtrace) from [] (show_stack+0x10/0x14)
[] (show_stack) from [] (dump_stack+0x88/0x98)
[] (dump_stack) from [] (handle_IPI+0x1cc/0x1ec)
[] (handle_IPI) from [] (gic_handle_irq+0x74/0x78)
[] (gic_handle_irq) from [] (__irq_svc+0x40/0x54)
Exception stack(0xc0599f48 to 0xc0599f90)
9f40:                   fffffff0 00000000 fffffff0 c00199a0 c0598018 c05a0460
9f60: c05a04c4 00000000 00000000 00000000 c0598000 c04249ac c05a121c c0599f90
9f80: c000f0e4 c000f0e8 60000113 ffffffff
[] (__irq_svc) from [] (arch_cpu_idle+0x38/0x3c)
[] (arch_cpu_idle) from [] (cpu_startup_entry+0x228/0x29c)
[] (cpu_startup_entry) from [] (start_kernel+0x398/0x3a4)
---[ end Kernel panic - not syncing: No working init found.  Try passing init= option to kernel. See Linux Documentation/init.txt for guidance.

顶一下:):):)