我正在尝试使用 yaffs2 fs 启动嵌入式系统。这是我使用的引导参数：
控制台=ttyO0,115200n8 androidboot.console=ttyO0 ip=off mem=256M rootwait=1 rw root=1f09 rw rootfstype=yaffs2 init=/init
我在启动内核时得到了这个：
[ 3.160095] yaffs: dev is 32505865 name is "mtdblock9" rw
[ 3.165802] yaffs: passed flags ""
[ 3.480407] VFS: Mounted root (yaffs2 filesystem) on device 31:9.
[ 3.486877] devtmpfs: error mounting -2
[ 3.491546] Freeing init memory: 244K
[ 3.495422] Failed to execute /init. Attempting defaults...
[ 3.502258] Kernel panic - not syncing: No init found. Try passing init= option to kernel. See Linux Documentation/init.txt for guidance.
[ 3.515350] Backtrace:
[ 3.518005] [<c001803c>] (dump_backtrace+0x0/0x10c) from [<c0504850>] (dump_stack+0x18/0x1c)
[ 3.526885] r7:00000013 r6:c003f498 r5:c0739350 r4:c0739350
[ 3.532867] [<c0504838>] (dump_stack+0x0/0x1c) from [<c05048b8>] (panic+0x64/0x198)
[ 3.540954] [<c0504854>] (panic+0x0/0x198) from [<c0008818>] (init_post+0x84/0xd4)
[ 3.548919] r3:fffffffe r2:00000004 r1:00000080 r0:c05f5690
[ 3.554901] [<c0008794>] (init_post+0x0/0xd4) from [<c06a02fc>] (kernel_init+0xf4/0x124)
[ 3.563446] r5:c06dbf94 r4:c0738400
[ 3.567230] [<c06a0208>] (kernel_init+0x0/0x124) from [<c003f498>] (do_exit+0x0/0x6ac)
我也尝试过使用其他初始化脚本（/system/bin/sh），但我仍然遇到同样的问题。
我也尝试了 ramdisk 映像，我从内核得到了这个日志：
[ 3.171234] omap_rtc omap_rtc: setting system clock to 2000-01-01 01:24:39 UTC (946689879)
[ 3.180786] RAMDISK: gzip image found at block 0
[ 3.190429] yaffs: dev is 1048576 name is "ram0" rw
[ 3.195587] yaffs: passed flags ""
[ 3.199371] List of all partitions:
[ 3.203063] 1f00 128 mtdblock0 (driver?)
[ 3.208435] 1f01 128 mtdblock1 (driver?)
[ 3.213775] 1f02 128 mtdblock2 (driver?)
[ 3.219116] 1f03 128 mtdblock3 (driver?)
[ 3.224426] 1f04 1920 mtdblock4 (driver?)
[ 3.229766] 1f05 128 mtdblock5 (driver?)
[ 3.235076] 1f06 5120 mtdblock6 (driver?)
[ 3.240417] 1f07 5120 mtdblock7 (driver?)
[ 3.245727] 1f08 61440 mtdblock8 (driver?)
[ 3.251068] 1f09 187904 mtdblock9 (driver?)
[ 3.256408] b300 7875584 mmcblk0 driver: mmcblk
[ 3.262023] b301 200781 mmcblk0p1 00000000-0000-0000-0000-000000000000mmcblk0p1
[ 3.270751] b302 7671037 mmcblk0p2 00000000-0000-0000-0000-000000000000mmcblk0p2
[ 3.279449] No filesystem could mount root, tried: yaffs2
[ 3.285247] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(31,9)
[ 3.294036] Backtrace:
[ 3.296661] [<c001803c>] (dump_backtrace+0x0/0x10c) from [<c0504850>] (dump_stack+0x18/0x1c)
[ 3.305541] r7:c05f5f18 r6:00008000 r5:c0739350 r4:c0739350
[ 3.311553] [<c0504838>] (dump_stack+0x0/0x1c) from [<c05048b8>] (panic+0x64/0x198)
[ 3.319641] [<c0504854>] (panic+0x0/0x198) from [<c06a0df4>] (mount_block_root+0x1e8/0x228)
[ 3.328430] r3:00000000 r2:cf81df58 r1:cf81df58 r0:c05f59c8
[ 3.334411] [<c06a0c0c>] (mount_block_root+0x0/0x228) from [<c06a194c>] (initrd_load+0xb4/0x338)
[ 3.343688] [<c06a1898>] (initrd_load+0x0/0x338) from [<c06a0fcc>] (prepare_namespace+0xcc/0x1cc)
[ 3.353027] r5:c06ce068 r4:c06ce05c
[ 3.356842] [<c06a0f00>] (prepare_namespace+0x0/0x1cc) from [<c06a02f8>] (kernel_init+0xf0/0x124)
[ 3.366149] r5:c06dbf94 r4:c0738400
[ 3.369964] [<c06a0208>] (kernel_init+0x0/0x124) from [<c003f498>] (do_exit+0x0/0x6ac)
[ 3.378295] r5:c06a0208 r4:00000000
我不明白这个问题的原因。由于我对这个主题不太了解，任何人都可以帮我找到原因吗？是否有任何内核选项可以添加以获取有关 bootargs 中原因或缺失详细信息的更多详细信息？
谢谢 ！