I have a load-bearing raspberry pi on my network - it runs a DNS server, zigbee2mqtt, unifi controller, and a restic rest server. This raspberry pi, as is tradition, boots from a microSD card. As we all know, microSD cards suck a little bit and die pretty often; I’ve personally had this happen not all that long ago.
I’d like to keep a reasonably up-to-date hot spare ready, so when it does give up the ghost I can just swap them out and move on with my life. I can think of a few ways to accomplish this, but I’m not really sure what’s the best:
I’m thinking out loud a little bit here, but do y’all have any thoughts? I think I’m leaning towards ZFS or BTRFS.
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I can’t remember the steps (they were simple though) but when my Home Assistant raspi SD card died, I bought a 128gb SSD from AliExpress and a usb-sata cable.
I then did something to the pi that meant it can boot from the SSD, and flashed the SSD using Balenetcher or RUFUS or whatever (same program I was using to flash my SD cards basically).
Then it was just a case of plugging in and turning it on.
Runs exactly the same as with an SD card with less dying because SD cards aren’t meant for a lot of read/write but SSDs do.
That’s true, just booting from an SSD would be a lot more reliable and simple.
Just Google “Booting a pi from an SSD” and follow the steps