User:Pau pajuelo

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How to manage the kernel modules on Linux

How do I edit my kernel command line

Basic Software instructions

Make a flash backup to a microSD and restore

Change your static IP to IGEP Firmware

Configure a static IP using the same private network range

under construction

IGEP Firmware Yocto uses the following Ethernet network configuration (IP addresses)

• eth0 − 192.168.5.1
• eth0:0 − assigned via dhcp.

This Ethernet network configuration is really useful when you work using a Linux operating system like IGEP SDK Virtual Machine. Because you use eth0 device to communicate easily with your board and eth0:0 device to get Internet acces using dhcp protocol.

But some scenarios this network configuration is not useful, for example: if you use a non-Linux operating system, connect to two IP private range interfaces is not simple. This How-to can be useful to

(Make diagram one: IGEP and Linux defualt communication. Diagram 2 IGEP and other SO alternative configuration)

Backup your flash memory

under contruction

Overview

This How-To is meant to be a starting point for people to learn to backup and restore the flash memory from IGEP Boards.

Requirements

There are some requisites to follow this guide:

• IGEP Board
• MicroSD card with the latest IGEP Firmware Yocto
• PC
• IGEP remote terminal, using a serial cable or Ethernet communication

Backup

• Boot your IGEP Board using a microSD card
• Get a remote terminal
• Log as a root user
• Mount flash memory partition using the following commands:

mkdir /tmp/mtdblock1
mkdir /tmp/mtdblock2
mount -t jffs2 /dev/mtdblock1 /tmp/mtdblock1
mount -t jffs2 /dev/mtdblock2 /tmp/mtdblock2

• Create a backup directory and backup your flash memory:

mkdir /home/root/backup
tar -cvf /home/root/backup/igepinikernel.tar /tmp/mtdblock1/
tar -cvf /home/root/backup/rootfs.tar /tmp/mtdblock2

• Shutdown your system

Restore

Get IGEP X-Loader image

First of all, you need to get a IGEP X-Loader image (named by default MLO), you can download a compiled IGEP X-loader image from this article.

Once you extract MLO file copy to microSD rootfs partition inside backup folder create before.

Restore your firmware image to flash memory

• Boot your IGEP Board using the same microSD used when you backup your system
• Get a remote terminal
• Log as a root user
• Erase flash memory using the following commands:

flash-eraseall /dev/mtd0
flash_eraseall /dev/mtd1
flash_eraseall /dev/mtd2

• Mount flash memory partition using the following commands:

mkdir /tmp/mtdblock1
mkdir /tmp/mtdblock2
mount -t jffs2 /dev/mtdblock1 /tmp/mtdblock1
mount -t jffs2 /dev/mtdblock2 /tmp/mtdblock2

• Restore igep.ini, Kernel and rootfs:

cd /
tar xvf /home/root/backup/igepinikernel.tar
tar xvf /home/root/backup/rootfs.tar

• Copy IGEP X-Loader binary to flash memory:

 writeloader -i /home/root/backup/MLO /dev/mtd0

• Shutdown your system

Test results

Once you shutdown your system,l extract your microSD card and bootup IGEP Board using flash memory. Your old system image should be executed.

igep.ini parameters

The kernel command line syntax is name=value1. These next parameters are supported in igep.ini since IGEP-X_Loader 2.4.0-2:

[kernel]

Parameter Name	Description	Default value	Comments
kaddress	Kernel copy address	=0x80008000	Hex memory address
rdaddress	Ram Disk location address	=0x81600000	Hex memory address; disabled by default
serial.low	Serial number (low part)	=00000001	Numeric
serial.high	Serial number (high part)	=00000000	Numeric
revision	Revision ID	=0003	Numeric
kImageName	Kernel, binary image name	=zImage	Kernel or binary image name
kRdImageName	Kernel RAM Disk Image Name	-	Ram Disk image name
MachineID	Machine ID (kernel ID)	;IGEPv2 =2344	;Module =2717 ;Proton =3203
Mode	Boot Mode	;Linux kernel =kernel	;Other image (like uboot) [binary image]

[kparams]

Parameter Name	Description	Default value	Comments
buddy	Enable/disable expansion board support	;IGEPv2 Expansion Board support =igep0022	;Berlin and Paris Expansion Board support =base0010 New York Expansion =ilms0015
console	Setup the kernel console parameters	=ttyO2,115200n8	-
earlyprintk	Enable early printk	-	-
mem	Setup the Board Memory Configuration	=430M	-
boot_delay	Setup the boot delay	=0	-
mpurate	Setup ARM Processor Speed	-	-
loglevel	Setup the loglevel	-	-
debug	Enable kernel debug output	-	-
fixrtc	Fix RTC variable	-	-
nocompcache	Configure nocompcache variable	=1	-
omapfb.mode	Configure frame bugger configuration	=dvi:hd720-16@50	;Other configuration =dvi:1280x720MR-16@60
vram	Configure Video RAM assigned to every frame buffer	-	-
omapfb.vram	Configure Video RAM assigned to every frame buffer	-	-
omapfb.debug	Configure frame buffer debug output	-	-
omapdss.debug	Configure DSS Video debug output	-	-
smsc911x.mac0	Configure Board Ethernet Mac Address	=0xb2,0xb0,0x14,0xb5,0xcd,0xde	For IGEP BERLIN
smsc911x.mac1	Configure Board Ethernet Mac Address	=0xb2,0xb0,0x14,0xb5,0xcd,0xdf	For IGEP BERLIN (only with IGEP PROTON)
smsc911x.mac	Configure Board Ethernet Mac Address	=0xb2,0xb0,0x14,0xb5,0xcd,0xde	For IGEPv2, IGEP PROTON, IGEP PARIS and IGEP BERLIN
ubi.mtd	Fot UBI FS boot	-	-
root	Configure root directory for MMC, NFS or UBI	;For mmc memory =/dev/mmcblk0p2 rw rootwait	;For flash memory =/dev/mtdblock2
nfsroot	For NFS boot	-	-
rootfstype	For UBI FS boot	-	-
ip	For NFS boot	-	-
init	Assign init program	-	-
musb_hdrc.debug	USB debug	-	-
musb_hdrc.use_dma	USB over network	-	-
libertas.libertas_debug	Configure libertas debug	-	-
board.ei485	Enable/disable RS485	;Enable RS485 =yes	;Disable RS485 =no
board.modem	Enable/disable GPRS modem	;Enable modem (IGEPv2 Expansion) =no	;Enable modem (IGEPv2 Expansion) =yes
buddy.revision	Enable hardware buddy revision [A or B]	Only for base0010 =A	Only for base0010 =B