For me, my high bar that I have yet to beat, was the time I pivoted the running OS (ubuntu) into RAM over SSH so I could unmount and image the boot drive without rebooting and loading a live USB (Which would have required a ticket with my provider to enable IPMI)
In the early 2ks, computer were ugly grey box with noisy fan and a hard drive that gave the impression a cockroach colony were trying to escape your case. I wanted to build a silent computer to watch Divx movies from my bed, but as a broke teen, I just had access to disposed hardwares I could find there and there.
I dismantled a power supply, stuck mosfets to big mother fucking dissipator, and I had a silent power supply. I put another huge industrial dissipator on CPU (think it was an AMD k6 500Mhz) and had fanless cooling. Remained the hard drive.
Live CD/USB weren’t common at that time. I’ve discovered a live CD distrib (I think it was Knoppix) that could run entirely from RAM.
I removed hard drive, boot on live distrib, then replace CD by my Divx and voila.
Having a fanless-harddriveless computer was pure science fiction for me and my friends at that time.
That this worked when I did it in 2006:
wine ~/.wine/drive_c/Program\ Files/Warcraft\ III/Frozen\ Throne.exe -openglYet in 2025 w3c is a pain in the ass
Wine still feels like magic in 2025
Yes! It used to be so hit or miss with Wine, but I played WoW in it around the same time and it was crazy that it worked (at least most of the time).
Recovered a legacy COBOL 911 dispatch system after the hard drive containing the root filesystem died, which wasn’t RAID protected at all and had no complete backups except for a few days prior when I started running daily rsync backups out of paranoia because the idiot dipshit sysadmin who set it all up left the company to work directly for one of our customers.
Thankfully the data volume was RAID protected and didn’t die so the critical data was pretty much all there ready to go again after some rebuilding of shit.
Still, took 15 hours to recover. Was a RHEL 4 system when RHEL 6 was current, and we had no way of obtaining the install media or licensing, so I dug up an archived CentOS 4 iso and installed from that, and got stuff working mostly just by copying various files from backup.
Fucking nightmare come true. Drive crashed at noon and we didn’t go home until about 4am.
Moving from old to new Laptop by piping /dev/sda3’s content through netcat and into /dev/nvme0n1p3
How did you do it? Did you run a live distro on the new laptop to receive and overwrite the SSD ?
Livebooted (Arch) on both, I think you can even remove the install media after it copied itself to RAM, though I’m not sure (especially with Ventoy in between).
Piped the ps2 usb camera /dev/video0 to nc. Reverse port fwd’d to my router 200 miles away, and got vlc 200 miles to connect to that port and it worked. No rtsp or server required
I used to be a build engineer at an enterprise Linux company that built custom Linux distributions for various device manufacturers.
I built a whole build automation system that used what would be the equivalent of a Docker container for the build system, and it was distributed across the whole company to make simultaneous build in parallel and a system that would check how many build systems were in use or available with a queueing system.
All written in Bash, Perl and Python.
When the network printer suddenly started printing the picture my kid had drawn in tux paint without me having configured the printer on their PC.
You might actually be a wizard lmao
The real wizards are the folks who made KDE’s printer integration. Or maybe CUPS.
I’ve you ever looked at CUPS code? Forget wizardry, it’s straight up Eldritch lore in typed form.
mdadm
scp
I’m never using a flash drive again.
especially nice when you get path completion on the target server :D
Note: to do this you have to have your public key on the remote server
Next step: rsync, because it lets you resume.
Installing Linux on the Nintendo DS (https://www.dslinux.org/) was pretty impressive for me.
The first time I learned about PDFGrep, I was able to track down a purchase order that would have taken hours otherwise.
Maybe a little specific, but the first time i used autorandr, I was wow it does exactly what it sounds like it does.
Oh! I just thought of a better one. The first time you run
vim scp://user@server//home/user/.Oh so many fun adventures, too much to count… But a few nice ones:
- HDD died, so ran a desktop system over network from a NAS (nfs) without HDD… for months.
- Rebuilding a corrupted system (any bit advanced tools wouldn’t start anymore, like apt).
- Custom bootable live cd based on Linux From Scratch (around 2002).
- Anything related to Kerberos and NFS4.
- Replacing syscalls to run software from a ramdrive that would otherwise not work.
- Recently using debootstrap to install Kubuntu with a ZFS root, which went surprisingly smooth and pretty easy.
I love Linux for all these insane possibilities.
Migrated a server to a new drive by copying all the files with rsync and chrooting into it. Nothing too impressive from a linux standpoint, but I had no idea that was possible until I tried it.
I used to do this to migrate user profiles on Macs at my previous employer. I’d ssh in and copy everything across the network and then have the user log in on the other computer like magic. Network copy is a beautiful thing.
I tripped over a cord once and broke the screen on my laptop. I salvaged the disk for another purpuse. But I got some prime hardware here, it’s got video output, it’s got ram, and a cpu! I used it for my lectures; liveusb with some persistent storage on, put my slides on there and fire it up. Did not have to unplug the normal laptop from my office. Nothing magic really, but some students were puzzled.
