Bi-Color LED Daughter Card for ZuluSCSI

A small daughter card that repurposes the front-panel power LED on Sun workstations to also indicate drive access, using an RGB LED and an XOR gate driven by the ZuluSCSI accessory output

Image Security and Checksums

How to verify the SHA1 checksum of a disk image downloaded from oldsilicon.com before booting it on a classic workstation connected to your home network

IRIX 6.5 Disk Image Notes

README for the IRIX 6.5 prototype disk images hosted on oldsilicon.com — SGI Indy and Indigo, default accounts, networking via EZSetup or CLI, custom toolchest, and preinstalled GNU tools from the IRIX Freeware CD

Solaris 2.6 Disk Image Notes

README for the Solaris 2.6 prototype disk images hosted on oldsilicon.com — security, networking setup, CDE, preinstalled compilers and GNU tools, and the full /usr/local/bin listing

SunOS 4.1.4 (Solaris 1.1.2) Disk Image Notes

README for the SunOS 4.1.4 / Solaris 1.1.2 prototype disk images hosted on oldsilicon.com — sun4c machines, DNS-without-NIS patched libc, Motif 1.2 + mwm, X11R5/R6/OpenWindows, preinstalled GNU tools and gcc 2.8.1

Why is my Disk Image boot so slow?

Diagnosing slow boots when using one of the downloadable disk images — RPC timeouts from an unconfigured network, defective SD cards, and non-contiguous image writes

ZuluSCSI Overview

ZuluSCSI is a solid-state direct replacement for a physical SCSI drive, well suited to retro computers. Performance, SD card convenience, multiple SCSI targets per board, and mounting tips

ZuluSCSI Disk Images

Getting started with ZuluSCSI disk images for vintage workstations