TDA4VM: copy vision apps binaries via ssh

Hi Mariem,

If you intend to have the rootfs in the NFS then you can use 'make linux_fs_install_nfs'. If you are using the file system on SD/eMMC then i recommend using make linux_fs_install_sd. Do you want to avoid inserting/removing SD card? Where is your file system hosted?

- Keerthy

Hello Keerthy,

Thank you for your response.

The board is hosted in a server and I am accessing it via ssh. I would like to copy the generated binaries over the network (via ssh/scp or sshfs). I tried to copy them using scp but the inference did not work correctly, I think I am doing it wrong. 

I worked previously with make linux_fs_install_sd when I was using the board locally, but when moving the board to the server, I encountered problems when trying to perform the same task on the server via SSH. Can I have some support ? Is there any solution that can be suggested?

Thanks a lot,

Mariem

Hi Mariem,

Can you share the commands/changes you used to copy?

You can use scp command from your Linux machine to the Board to copy from a remote machine to the board.

- Keerthy

Hi Keerthy,

First, I use the command linux_fs_install_sd_temp, it does the steps as linux_fs_install_sd but it copies the files in local directories:

ROOT_PATH ?= /ti_sdk/rootfs
BOOT_PATH ?= /ti_sdk/BOOT

linux_fs_install_sd_temp: linux_fs_install
$(call CLEAN_COPY_FROM_STAGE,$(ROOT_PATH))
ifneq ($(HS),1)
cp -rf $(LINUX_BOOTFS_STAGE_PATH)/* $(BOOT_PATH)/
endif
$(call MODIFY_FS,$(ROOT_PATH),$(BOOT_PATH))

ifeq ($(BUILD_CPU_MCU1_0),yes)
ifeq ($(BUILD_TARGET_MODE),yes)
$(call UBOOT_INSTALL,linux,$(BOOT_PATH))
endif
endif
sync

Then, I copy the generated files to the board using the following commands. I used these commands in order to be able to update the files that already exist in the SD card, because when copying with just scp -r, the files that exist in the board are not updated.

find /ti_sdk/rootfs/lib/firmware/ -type f -exec scp {} root@$(ip_address):/lib/firmware/ \;
find /ti_sdk/rootfs/opt/vision_apps/ -type f -exec scp {} root@$(ip_address):/opt/vision_apps \;
find /ti_sdk/rootfs/opt/vx_app_arm_remote_log.out -type f -exec scp {} root@$(ip_address):/opt/ \;
find /ti_sdk/rootfs/etc/security/ -type f -exec scp {} root@$(ip_address):/etc/security/ \;
find /ti_sdk/rootfs/usr/lib/ -type f -exec scp {} root@$(ip_address):/usr/lib/ \;

Hello Keerthy,

Yes the scp command is working and the files are updated in the SD card. However, I am getting an error when running the inference:

VX_ZONE_ERROR:[ownReleaseReferenceInt:297] Invalid reference error. But when do the same steps locally (not in the server) the inference works well.

Could you please confirm that the files that I am copying are the right files to copy? Isn't there missing files to copy ?

Hi Mariem,

Typically we even need to copy the modules. /lib/modules/

Can you try to copy that as well?

- Keerthy

Hello Keerthy,

In the /tmp/tivision_apps_targetfs_stage/ I can find only /lib/firmware. there is no repo called /lib/modules/

Hi,

Mariem Turki said:

VX_ZONE_ERROR:[ownReleaseReferenceInt:297] Invalid reference error. But when do the same steps locally (not in the server) the inference works well.

Could you please confirm that the files that I am copying are the right files to copy? Isn't there missing files to copy ?

Please share the full logs when this error happens.

- Keerthy

Hello Keerthy,

I have successfully ran the inference :) There was one difference between the codes (the one locally and the one in the server) that is why I was getting the error [ownReleaseReferenceInt:297] . When both are identical, the inference worked successfully when I just copied the /opt/vision_apps binaries using scp -r.

Thanks