overview for traches

H model C-130s, the ones with the 4 square blade props? The engines and props are mechanically governed. There are electronic corrections applied, but the core of the systems are purely mechanical. Still flying.

Source: former flight engineer on them.

Self-documenting Code in c/programming@programming.dev

[-] traches@sh.itjust.works 47 points 1 week ago

Agreed. OP was doing well until they replaced the if statements with ‚function call || throw error’. That’s still an if statement, but obfuscated.

What is your linux backup strategy? in c/linux@lemmy.ml

[-] traches@sh.itjust.works 2 points 2 weeks ago* (last edited 2 weeks ago)

Software & Services:

Restic client
Restic REST server
https://github.com/rbuchberger/res-man + systemd timers or cron to configure & run restic nightly
healthchecks.io for monitoring
ntfy.sh for notifications

Destinations:

Local raspberry pi with external hdd, running restic REST server
RAID 1 NAS at parents' house, connected via tailscale, also running restic REST

I've been meaning to set up a drive rotation for the local backup so I always have one offline in case of ransomware, but I haven't gotten to it.

Edit: For the backup set I back up pretty much everything. I'm not paying per gig, though.

What technology purchase felt like a major upgrade in your life? in c/asklemmy@lemmy.world

[-] traches@sh.itjust.works 30 points 2 weeks ago

iPhone 3G. I’ll never forget the day I put the internet in my pocket

What were you wrong about for a long time? How did you realize you were wrong? in c/asklemmy@lemmy.world

[-] traches@sh.itjust.works 115 points 3 weeks ago

Raised conservative christian, took a disgustingly long time to lose some of my shittier takes

What would you replace the "pledge of allegiance" with? in c/asklemmy@lemmy.world

[-] traches@sh.itjust.works 23 points 3 weeks ago

Delete the middle.

“I pledge allegiance to liberty and justice for all”

Setup Arch on New Laptop in c/archlinux@lemmy.ml

[-] traches@sh.itjust.works 8 points 4 weeks ago

With AMD it’ll just work

46

Best way to keep a hot spare SD card for a raspberry pi? (sh.itjust.works)

submitted 2 months ago by traches@sh.itjust.works to c/selfhosted@lemmy.world

54 comments fedilink

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:

The simplest is probably cron + dd, but I'm worried about filesystem corruption from imaging a running system and could this also wear out the spare card?
recreate partition structure, create an fstab with new UUIDs, rsync everything else. Backups are incremental and we won't get filesystem corruption, but we still aren't taking a point-in-time backup which means data files could be inconsistent with each other. (honestly unlikely with the services I'm running.)
Migrate to BTRFS or ZFS, send/receive snapshots. This would be annoying to set up because I'd need to switch the rpi's filesystem, but once done I think this might be the best option? We get incremental updates, point-in-time backups, and even rollback on the original card if I want it.

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.