SBC35-C398/Setup
v1.0
www.winsystems.com
Page 13
into the file system so that the TFTP server is configured for use. Contact your
WinSystems Applications Engineer for additional information on configuring U-Boot.
7.8.5 Root File System
The root file system arguments (
root=/dev/mmcblk0p2 'rootwait rw'
) specify
the device and partition where the Linux file system resides. For each device, this will be
the second partition that contains a Linux ext3 file system.
7.8.6 U-Boot Delay
This is the amount of time after power-up during which you can press a key to abort the
OS boot; if the OS boot is aborted, the U-Boot command prompt will appear and the
various U-Boot commands can be executed. This delay can be changed by modifying
the environment variable '
bootdelay
'. The default value is three (3 seconds). To
change the value to 10 seconds enter:
setenv bootdelay '10'
