Emerson MVME2500 manual Boot Options, Booting from a Network, Boot System, setenv netmask netmask

Models: MVME2500

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Boot System

U-Boot aborts the boot sequence and enters into a command line interface mode.

Enter the command setenv bootdelay -1; saveenv to disable the U-Boot auto-boot feature and let the U-Boot directly enter the command line interface after the next reboot/power up.

6.3Boot Options

6.3.1Booting from a Network

In this mode, U-Boot downloads and boots the Linux kernel from an external TFTP server and mounts a root file system located on a network server.

1.Make sure that the kernel, dtb, and ramdisk are accessible to the board from the TFTP server.

2.Configure U-Boot environment variables:

setenv ipaddr <IP address of MVME2500> setenv serverip <IP address of TFTP server> setenv gatewayip <gateway IP>

setenv netmask <netmask>

setenv bootargs 'root=/dev/ram rw console=ttyS0,9600n8 ramdisk_size=700000 cache-sram-size=0x10000'

saveenv

3.Transfer the files through the TFTP from the server to the local memory. tftp 1000000 <kernel_image>

tftp 2000000 <ramdisk> tftp C00000 <kernel dtb>

4.Boot the Linux from the memory. bootm 1000000 2000000 c00000

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MVME2500 Installation and Use (6806800L01H)

Page 104
Image 104
Emerson MVME2500 manual Boot Options, Booting from a Network, Boot System, setenv netmask netmask, saveenv