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How to netboot a Raspberry Pi with TFTP and NFS on a Synology NAS?

The answer is relatively simple, though it took a long time to find it. If you netboot Ubuntu with NFS on an RPi4 the nfsmount included with klibc (as delivered by Ubuntu) only supports NFS v2 and v3. ...
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FFmpeg/FFplay sometimes goes to sleep waiting on IO when webcam is unplugged

Don't know exactly which part fixed it but I removed FFmpeg and just played the webcam back with FFplay instead. I also run the following script when the webcam is unplugged: #!/bin/bash sudo pkill -...
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Raspbian : Failed to change fw-clk-arm frequency

Just wanted to post that I was having the same issue with one of my Compute Module 4s (a Lite model, no eMMC). I tried booting it, but it would show the same error: failed to change fw-clk-arm ...
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Cannot boot from SD Card on Raspberry Pi 3+ when external hard drive is connected

My microSD card was simply dead. I changed it after multiple tests which showed that it was an error of the card and not of the hard disk.
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