[Zedboard] Where is the setup of network interfaces?

General
1

tl,dr: How do I keep ip configurations on Zedboards survive a reboot automatically?

sbruno@desk:~/opencpi$ env|grep OCPI
OCPI_CDK_DIR=/home/sbruno/opencpi/cdk
OCPI_TOOL_OS=linux
OCPI_TOOL_PLATFORM=ubuntu22_04
OCPI_SERVER_ADDRESSES=zed2:12345,zed3:12345
OCPI_ROOT_DIR=/home/sbruno/opencpi
OCPI_TOOL_ARCH=x86_64
OCPI_TOOL_DIR=ubuntu22_04
OCPI_TOOL_OS_VERSION=u22_04
OCPI_TOOL_PLATFORM_DIR=/home/sbruno/opencpi/project-registry/ocpi.core/exports/rcc/platforms/ubuntu22_04
OCPI_PREREQUISITES_DIR=/home/sbruno/opencpi/prerequisites
sbruno@desk:~/opencpi$ ocpirun -C
Available containers:
 #  Model Platform            OS     OS-Version  Arch     Name
 0  hdl   zed                                             zed2:12345/PL:0
 1  rcc   xilinx24_1_aarch32  linux  24_1        aarch32  zed2:12345/rcc0
 2  hdl   zed                                             zed3:12345/PL:0
 3  rcc   xilinx24_1_aarch32  linux  24_1        aarch32  zed3:12345/rcc0
 4  rcc   ubuntu22_04         linux  u22_04      x86_64   rcc0

I’ve been able to kind of see how to setup multiple boards for my use and had a couple of questions about customization. I’m pretty familiar with PetaLinux builds, so I’m trying to hunt down the customization bits for building my own SD card images.

As far as I can tell, there’s no connectivity between the bootup of a Zedboard and the OCPI scripts. It appears that one is expected to login on the serial console each time one reboots and run a modified version of /run/media/mmcblk0p1/opencpi/mysetup.sh to do things like change the MAC address to get different IP addresses for different boards.

If I want to manage more than 1 or 2 boards, I’d like to keep make the boards have independent configurations like ip addresses on reboot.

2

What we have done in the past in order to setup device’s network with a persistent IP address is modify the root file system (rootfs).

A fellow user of the framework has written up a guide that covers the modification. It can be found here: Modify the Root Filesystem - OpenCPI Examples

1 Like
3

Thank you. This is what I was looking for.

Is there any danger in having an init script invoke “mysetup.sh” so that OpenCPI is autostarted on reboot?

4

You’re welcome.

You should be fine to invoke mysetup.sh. It’s a user preference on how you want to execute OpenCPI applications. “mysetup.sh” is for running in standalone mode.