I’ve downloaded the TX2 rootfs associated with JetPack 4.5 using the SDKManager (/JetPack_4.5_Linux_JETSON_TX2/Linux_for_Tegra/rootfs).
I was able to use the flash.sh script to flash this image into the internal eMMC of my TX2; I had no problem doing the first time setup from eMMC.
When I attempt to copy this rootfs onto an external SD card (sudo cp -a /nvidia_downloads/JetPack_4.5_Linux_JETSON_TX2/Linux_for_Tegra/rootfs/* /media/ubuntu/my_sdcard/ && sync) and boot from that I receive the following error in the first time setup of the TX2 “Installation Failed: The installer encountered an unrecoverable error. A desktop session will now be run so that you may investigate the problem or try installing again.” Pressing ‘OK’ on this prompt does not bring up a desktop session.
Previously (on previous JetPack releases) I would expect that copying the root files system to the SD card would enable me to boot to an SD card, I have not seen this error before. I expect that my extlinux.conf is setup correctly to boot to SD Card.
Any ideas on what is going wrong here?