Difference between revisions of "User:SamuelM"
From ArmadeusWiki
(tips: fix prompt, add my u-boot config) |
m (→u-boot configuration) |
||
| Line 137: | Line 137: | ||
If the '''NFS server is alive''', but neither the '''linux kernel image nor the rootfs''' | If the '''NFS server is alive''', but neither the '''linux kernel image nor the rootfs''' | ||
| − | are '''NOT at the expected location''' | + | are '''NOT at the expected location''': ''/path/to/where/you/untar/your/rootfs'', |
| − | the boot will hang up, '''booting will fail''' !}} | + | the boot will hang up, so '''booting will fail''' !}} |
==== NFS server configuration ==== | ==== NFS server configuration ==== | ||
| Line 147: | Line 147: | ||
Then: | Then: | ||
| − | * untar the rootfs tarball in | + | * untar the rootfs tarball in ''/path/to/where/you/untar/your/rootfs'' |
| − | * copy the linux kernel image to | + | * copy the linux kernel image to ''/path/to/where/you/untar/your/rootfs'' |
<pre class="host"> | <pre class="host"> | ||
Revision as of 12:08, 24 July 2011
Contents
whoami
- Name:
- Samuel MARTIN
- Background:
-
Student at ESEO (French engineering school), specialised in Embedded systeme and Automation / -
Master student at l'University of Plymouth (UK), in Robotics. - Embedded and System Engineer (Paris, France)
-
Interests
- Robotics
- Computer Vision
- Image & signal processing
- Linux
Objectives
or, what I wanna do with the APF board (APF27 + Devfull)
- Have fun!
- Improve my skills in:
- Hardware development (FPGA)
- System and embedded OS
- Electronic development
- Software development for embedded (tiny) target
- Share my experiments
Contributions
Cross-compile OpenCV for your APF
Tips
A colored (and useful) prompt
zsh and ctafconf users won't be lost ;-)
##
## ~/.profile
##
source /etc/profile
## Enhanced promt
if [ -t 0 ]; then
bldblk='\033[1;30m' # Black - Bold
bldred='\033[1;31m' # Red
bldgrn='\033[1;32m' # Green
bldylw='\033[1;33m' # Yellow
bldblu='\033[1;34m' # Blue
bldpur='\033[1;35m' # Purple
bldcyn='\033[1;36m' # Cyan
bldwht='\033[1;37m' # White
txtrst='\033[0m' # Text Reset
undred='\033[4;31m' # Red - Underlined
bgdred='\033[1;41m' # Red - Background
bgdblu='\033[1;44m' # Blue - Background
fi;
if [ $(id -u) -eq 0 ]; then
userbgd="${bgdred}"
else
userbgd="${bgdblu}"
fi
export PS1="${userbgd}\u${bldylw}@${bldgrn}\h${txtrst} ${bldpur}[\$(eval \"res=\$?\"; [ \${res}$
u-boot configuration
- nfs-boot (kernel and rootfs), if the nfs server is alive
- boot from the NAND flash, otherwise
u-boot environment
BIOS> setenv nfsboot 'setenv bootargs ${console} ${mtdparts}; \
run addnfsargs addipargs; \
setenv autostart yes; \
nfs ${loadaddr} {serverip}:${rootpath}/${board_name}-linux.bin; \
bootm'
BIOS> setenv addnfsargs 'setenv bootargs ${bootargs} root=/dev/nfs rw nfsroot=${serverip}:${rootpath}'
BIOS> setenv addipargs 'setenv bootargs ${bootargs} ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}::off'
BIOS> setenv bootcmd 'if ping ${serverip}; then \
echo; \
echo Boot over NFS; \
echo; \
run nfsboot; \
else \
echo; \
echo Boot from the board; \
run jffsboot; \
fi'
BIOS> setenv board_name apf27
BIOS> setenv netmask 255.255.255.0
BIOS> setenv serverip 192.168.10.2
BIOS> setenv gatewayip 192.168.10.1
BIOS> setenv ipaddr 192.168.10.10
BIOS> setenv rootpath /path/to/where/you/untar/your/rootfs
BIOS> saveenv
BIOS> boot
Adjust the bootdelay if needed.
Next boot will automatically try to boot over NFS, then fallback on the NAND flash
 |
Warning:
If the NFS server is alive, but neither the linux kernel image nor the rootfs are NOT at the expected location: /path/to/where/you/untar/your/rootfs, the boot will hang up, so booting will fail ! |
NFS server configuration
Refer to the NFS wiki page to setting the NFS server up.
Then:
- untar the rootfs tarball in /path/to/where/you/untar/your/rootfs
- copy the linux kernel image to /path/to/where/you/untar/your/rootfs
sudo tar xvf apf27-rootfs.tar -C /path/to/where/you/untar/your/rootfs sudo -fv cp apf27-linux.bin /path/to/where/you/untar/your/rootfs
