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Thanks for this info. I'm trying to create a small system that can run off a HDD and/or a USB drive. I'm still not able to do a switch_root from the initramfs to a hardware root fs, but this helped get me to that point.

FYI, 'chmod +s su' will change the permissions of busybox and all the other commands. Others have created a separate small busybox binary with just the su and sudo commands built in, and given that binary the ability to elevate permissions.

[bluedragon1221]

I'm trying to create a small system that can run off a HDD and/or a USB drive. I'm still not able to do a switch_root from the initramfs to a hardware root fs, but this helped get me to that point.

Yeah, I haven't learned about switch_root yet, so I haven't written about it, but if you're interested, you're welcome to write an extension to the guide talking about setting up a mutable root file system with switch_root. It sounds super cool!

FYI, 'chmod +s su' will change the permissions of busybox and all the other commands. Others have created a separate small busybox binary with just the su and sudo commands built in, and given that binary the ability to elevate permissions.

Ah, this seems like a much better solution than what I have currently. I will look into it and update accordingly. Thanks for the tip