I like old computers. I like playing with different operating systems, including old ones. A year and a half ago, give or take, I received an SGI Indy from someone who was cleaning out the shed. This was a low-end machine from SGI, but a relatively high-end workstation by most standards of the era, meant for people doing 3D design and CAD work. This one was made in 1996, about a year before the product line was discontinued.
I've never used IRIX (Silicon Graphics' implementation of UNIX) before, but when the machine booted, I was presented with a graphical account chooser, not too different from what you might see on a modern computer (except lacking 20 years of graphical finesse). Of course, the first account I try to get into is root, because I would like to actually get this machine on the network. I cannot. I try a few other accounts until I come across one without a password. Then, I checked out /etc/passwd and found that the hashes weren't even shadowed. You can see several accounts don't have passwords at all.
I had a Kali Linux VM running on my laptop already, so I scribbled the password hash on a piece of paper, then re-constructed a fake password file from this one line and set John The Ripper loose on it.
Trying to load a shell as a kernel, obviously, wouldn't work, but it didn't stop me from trying, thus causing a panic and crash.
A short while later, I heard a noise on my laptop, and saw this:
Humorously, a few folks also tried cracking the same password on their equipment. One ended up finding it in under 2 minutes with 4 threads on an i5-2400 desktop, Fritz smashed it in a mere 13 seconds on a 32-core VM. I should probably see how fast JTR would get it on the laptop natively, with 4 threads outside a VM, but I'm not going to bother with that.
Now I just need to get Fusion installed on this IRIX box so I can reproduce the cheesy scene from Jurassic Park.