mastodon
4.5.7
I like to take things apart
Has anyone seen weirdness with lvm cache interfering with qcow2 snapshots? Backing up our VM's after adding caching makes them freeze on disk IO when the virt-backup is running.
It's spring cleaning in my office, so the few dozens paper prototype sliderules that have been cluttering my workbench are going away.
One of my favorite talks at #39c3 by @elise@fedi.katze.sh in which she glitches the ROM and gains persistent code execution on the Tegra X2
https://media.ccc.de/v/39c3-making-the-magic-leap-past-nvidia-s-secure-bootchain-and-breaking-some-tesla-autopilots-along-the-way
well that's just dell... we tried to upgrade our server to have an NVMe boot disk and their UEFI firmware refuses to boot from unapproved drives. So we rolled back those changes for now.
Should we upgrade our rack to dual phase immersion cooling for better efficiency or because it looks awesome?
After my #39c3 talk on day 3, the @HouseOfTea@chaos.social is hosting a celestial navigation hands on. I'll have sextants, slide rules and plotting paper for you to practice turning sun sights into position fixes https://events.ccc.de/congress/2025/hub/en/event/detail/celestial-navigation
