固件下载后，在启动的时候显示kernel panic.log如下，请问可能 是啥 原因，好像文件系统没有识别

[ 0.730000] VFS: Cannot open root device "(null)" or unknown-block(0,0): error -6

[ 0.740000] Please append a correct "root=" boot option; here are the available partitions:

[ 0.760000] 1f00 192 mtdblock0 (driver?)

[ 0.770000] 1f01 64 mtdblock1 (driver?)

[ 0.780000] 1f02 64 mtdblock2 (driver?)

[ 0.790000] 1f03 32448 mtdblock3 (driver?)

[ 0.800000] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)

[ 0.800000] ---[ end Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)

[ 82.700000] random: nonblocking pool is initialized