We used an Ultra 5 as a webserver at a very old job, and I managed to score an Ultra 5 and Sun Blade 100 that I plan on messing around with.

• You're going to need to use ancient protocols to connect to Solaris 10's sshd server: https://www.openssh.com/legacy.html

snippet.bash

ssh -oKexAlgorithms=+diffie-hellman-group1-sha1 -oHostKeyAlgorithms=+ssh-dss root@<my server>

A usb3sun works great.

• Raspberry PI mouse works
• Moonlander works
• Small Rii media keyboard works, but the mouse doesn't
• Apple Magic Keyboard doesn't work

None of the USB keyboards I tried worked. Only a Sun Type 6 USB keyboard worked.

These videos cover both the Dremel-old-chip-attach-new-battery and replacement NVRAM approaches:

• https://www.youtube.com/watch?v=ZDlt4b_pqno
• https://www.youtube.com/watch?v=k4QPBCS7BL8

When you replace the NVRAM chip with the correct type, the first boot with the new chip will take on the order of minutes. Be patient and you'll eventually get to an OpenBoot prompt.

• New NVRAM chip with battery: https://forum.vcfed.org/index.php?threads%2Fsun-ultra-5-nvram-replacement-trouble.1248448%2F
  • eBay: https://www.ebay.com/sch/i.html?_trksid=p2334524.m570.l1313&_nkw=M48T59Y-70PC1d&_sacat=0&_odkw=M48T59Y-70PC1
  • Update: I tried the 70PC1D. The machine booted with it in once, then failed to boot with it again. I have a 70PC1 on the way that I'll try next.
  • Update 2: Yes, you want a 70PC1 or a 70PC1U.
• Resetting NVRAM: https://forum.vcfed.org/index.php?threads%2Fhow-to-workaround-when-your-sun-ultra-5-10-nvram-no-longer-works.52997%2F

# 80:8:0:20:c0:ff is the MAC address you're setting, change accordingly
# i've tried this and it works

ok set-defaults
ok 1 0 mkp
ok 80 1 mkp
ok 8 2 mkp
ok 0 3 mkp
ok 20 4 mkp
ok c0 5 mkp
ok ff 6 mkp
ok ee 7 mkp
ok 0 8 mkp
ok 0 9 mkp
ok 0 a mkp
ok 0 b mkp
ok c0 c mkp
ok ff d mkp
ok ee e mkp
ok 0 f 0 do i idprom@ xor loop f mkp

• New NVRAM chip with battery: https://groups.google.com/g/comp.unix.solaris/c/XY0yoiyFaTc
  • You can find them on eBay: https://www.ebay.com/sch/i.html?_nkw=M48T59Y-70PC1D
  • Update: Yes, you want a 70PC1D. Same deal applies with waiting several minutes for it to start up.
• https://forum.vcfed.org/index.php?threads%2Fsun-blade-100-nvram-reprogramming.1237441%2F
• https://github.com/MrSparc/idprom-repair

If you have a hard drive that's being recognized in OpenBoot using probe-ide, but it's not being seen in Solaris, run devfsadm -v: https://docs.oracle.com/cd/E88353_01/html/E72487/devfsadm-8.html

• https://flylib.com/books/en/4.271.1.111/1/
• Make sure nsswitch and resolv.conf are correct: https://www.unix.com/solaris/11210-dns-solaris-9-a.html

• If you don't have a password set for your account, xscreensaver will not let you log in if the system is locked.