@itguyeric.mastodon.social.ap.brid.gy#TechTipThursday: let git find the commit that broke it.
Something worked three weeks ago and doesn't now, and there are two hundred commits in between. Stop reading diffs:
git bisect start
git bisect bad
git bisect good abc1234
Git checks out the midpoint […]
@pviwaterheaters.bsky.socialIncorporate manufacturer venting requirements in the early stages of a project to ensure proper routing space is available and avoid costly change orders.
Visit: https://ow.ly/gkCe50ZSglm
@itguyeric.mastodon.social.ap.brid.gy#TechTipThursday: stop committing five unrelated things at once.
You fixed a bug, renamed a variable, and left a debug line in there. git add . takes all of it. Instead:
git add -p
Git walks the change hunk by hunk and asks about each one. y to stage it, n […]
@itguyeric.mastodon.social.ap.brid.gy#TechTipThursday: you didn't actually lose that commit.
Bad rebase, hard reset, deleted branch. Before you panic:
git reflog
It's a log of everywhere HEAD has been, including commits that aren't on any branch anymore. Find the hash from before things went […]
@pviwaterheaters.bsky.socialIf your flue temperature is too hot, ensure the recirculation loop is connected to the provided port. Tying it into the cold line on a condensing unit can cause high exhaust temperatures and loss of efficiency.
Learn more: https://ow.ly/TE8h50ZIqus
@pviwaterheaters.bsky.socialEnsure your water heater has adequate air supply to avoid incomplete combustion and potentially hazardous operational issues.
Learn more: https://ow.ly/HqCV50ZIqsL
@itguyeric.mastodon.social.ap.brid.gy#TechTipThursday: stop losing long jobs to a dropped SSH session.
Before you kick off that big rsync:
tmux new -s migration
It runs on the server, not in your terminal. Ctrl+b then d to detach, close the laptop, walk away. Come back with tmux attach -t […]
@pviwaterheaters.bsky.socialIf installed in a cold winter climate, either insulate or use double wall pipe for the intake combustion air to control the condensation of airborne moisture in the combustion air.
Learn more: https://ow.ly/WmfM50ZIqsn #PVI #TechTipThursday #CombustionAir
@itguyeric.mastodon.social.ap.brid.gyStop drowning in logs:
journalctl -p err -b
Every error from the current boot, nothing else. Add -u nginx -f to follow one service live.
Logs are like receipts. Useless until you desperately need one.
#Linux #SysAdmin #TechTipThursday
@itguyeric.mastodon.social.ap.brid.gy#TechTipThursday: installing NVIDIA drivers on Fedora.
Skip the .run file from NVIDIA's site. Enable RPM Fusion nonfree, then:
sudo dnf install akmod-nvidia
Give it a few minutes to build before you reboot. Secure Boot? You'll need to sign it.