When following the flashing instructions on this page: Flashing Instructions I encountered errors in which the flashing process would hang and never complete. The terminal would have messages like this
tar: Read checkpoint 140000
tar: Read checkpoint 150000
tar: Read checkpoint 160000
tar: Read checkpoint 170000
tar: Read checkpoint 180000
tar: Read checkpoint 190000
tar: Read checkpoint 200000
Erased 67108864 bytes from address 0x00000000 in flash
Flash failure
Cleaning up...
I tried this with both JP 5.1.1 and JP 5.1.2 multiple times with the same failure. I traced the problem to a line in tools/l4t_flash_prerequisities.sh which tries to install a non existent package “python”. I changed the line that says python to python-is-python3 and then the flashing worked as expected.
sudo apt-get update && \
sudo apt-get install -y abootimg \
binfmt-support \
binutils \
cpp \
device-tree-compiler \
dosfstools \
lbzip2 \
libxml2-utils \
nfs-kernel-server \
python-is-python3 \
python3-yaml \
qemu-user-static \
sshpass \
udev \
uuid-runtime \
whois \
openssl \
cpio
Hopefully this post helps someone get past this problem. I’m looking for the code repository for these scripts and will push an upstream patch when I find it. In the meantime I stored a tar file with the fix in this gcp bucket: Updated JP 5.1.1 flashing script (python fix)