On Jun 30, 2013, at 3:24 AM, Chen Qi wrote:
tried both approaches.
No matter I used the 'defconfig + devtmpfs' approach or I used the
'host
config file' approach, I always met the following error.
'''
VFS: Cannot open root device "sdb1" or unknown-block(0,0)
For USB devices, there are two ways to do this when not using initramfs:
Inside the kernel source tree's Documentation/kernel-parameters.txt:
rootdelay=
rootwait=
Those are two options you can use. 5 seconds is usually good for
rootdelay.
So you could pass rootdelay=5 to the kernel when using usb devices.
rootwait will wait indefinitely.
Sincerely,
William Harrington
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