Hi, after reading dozens of threads on this forum about how to make a read-only SSD or SD card to make your device never break in production devices (say as a result of power cut while there is an SD card write operation going on), I understood that the NX dev kit is not the right way to do it in p…

I recognise the problem, very common. I provide code to implement 2x approaches for that very purpose. The first is this one: https://github.com/hcfman/sbts-boot-from-SSD That does however require an SSD. It implements a read-only mounted SSD with a memory overlayFS so that the operating system …

hello jan.juran, may I know what’s the actual use-case, what’s the threat model of file system. instead of read-only filesystem, how about refer to Jetson Security to enable the Disk Encryption? BTW, there’re some discussion threads, such as Topic 78540 , Topic 49050 , and Topic 191060 for makin…

Hi, Thanks for your response. Not sure what this has to do with security. My concern is not about anyone stealing the data, but about the device not being able to boot or otherwise getting corrupted as a result of invalid disk write operation (say because of a power cut). That’s not a theoretical …

hello jan.juran, you should refer to Bootloader and Root filesystems redundancy regarding to your use-case. it ensures that a workable Bootloader partition remains on boot storage, you may duplicate A/B slot, switching to workable slot if the crash happened.

Hi, that’s great news! I will have a look at your projects. I like working with SD cards because those are easily backed up and swapped and do not require any special equipment. Just a USB dongle. I think I can get away with using SSDs for this project though - it should be able to boot fast anywa…

Very glad it’s worked out for you. It’s inspiring me now to make a single SD version of sbts-base project at some time. I’m still trying to get people’s attention to try my projects as they are very new. I’m happy with every new person that tries them :-) The approach I use as well is rather unique…

Meanwhile there is a solution using the default overlayfs, also here in this forum (search for lehni)

Nice to hear others are busy with the overlayFS. The approach I use explicitly avoids creating a new initramfs image and uses the standard one that it boots on. Initially I was also building an initramfs in order to fix any corrupt file systems during boot. However, after jetpack 4.6 was introduced …

The proper way to implement production read-only filesystem

Robotics & Edge Computing Jetson Systems Jetson Xavier NX

jan.juran January 25, 2022, 4:45pm 8

@KimHendrikse One question though. Any idea why these guys died trying what you have in a repo with just a few commits? At some point during my research I read through the whole thread (which is a loooong evening) and after doing so fell in despair…

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The proper way to implement production read-only filesystem

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