AGX Xavier DRBD

Autonomous Machines Jetson & Embedded Systems Jetson AGX Xavier
#1

Hi.

I was wondering if someone can help me. I have a 2TB M.2 flash installed on my Xavier and everything is working great with the M.2 flash. Now, i want to make the M.2 flash be a drbd partition. I have installed the drbd8-utils package and configure it. However, when I run the “modprobe drbd” command, I get the following error:

modprobe: FATAL: Module drbd not found in directory /lib/modules/4.9.140-tegra

Where can I download the kernel mod for drbd?

Has anyone done drbd on the NVIDIA Xaviers?

Thanks ahead of time.

#2

To add new driver as module, you need to download the source code from our download center and add it in tegra_defconfig.

#3

Hi Wayne. Thank you for responding back. When you say download the source, I assume you are referring to the public_sources.tgb2 file and untar the kernel source. If this is correct, I am not sure what to add to the tegra_defconfig file. Can you give me more information or point me to the right direction?

Just to clarify, once this procedure works, I should be able to see the /dev/drbd0 for the “modprobe drbd” to work, correct?

Thank you.

#4

First, you need to know how to build kernel image/kernel. You could refer to L4T document from our download center.

Second, to add a driver, please find what drbd needs in their makefile.

According to their makefile as below, you should put the CONFIG_BLK_DEV_DRBD=m in tegra_defconfig.

drbd-y := drbd_bitmap.o drbd_proc.o
drbd-y += drbd_worker.o drbd_receiver.o drbd_req.o drbd_actlog.o
drbd-y += drbd_main.o drbd_strings.o drbd_nl.o
drbd-y += drbd_interval.o drbd_state.o
drbd-y += drbd_nla.o
drbd-$(CONFIG_DEBUG_FS) += drbd_debugfs.o 
obj-$(<b>CONFIG_BLK_DEV_DRBD</b>)     += drbd.o

Please note that we didn’t verify it in our platform, so maybe some bugs there.

#5

Thanks you Wayne! I was able to get the drbd/pacemaker installed and running!

#6