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I saw “Permission denied”. Are you running the command using the root user?

A temporary solution is to use sudo

sudo rosinstall_generator ros_comm --rosdistro noetic --deps --wet-only --tar > noetic-ros_comm-wet.rosinstall

Otherwise, use a normal user like what I did (I used the pi user).

[VarHowto Editor]

Hi dacutty,

Did you follow the step 7 to increase swap? Raspberry Pi’s memory is quite limited.

How to Install ROS Noetic on Raspberry Pi 4

[VarHowto Editor]

Have you changed the lines in bold?

User=lgtm
Group=lgtm
WorkingDirectory=/home/lgtm/Heimdall-2.2.2

[VarHowto Editor]

You’ll need to use your own username in the service files.