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Douglas Fields

Writing LISP and Haskell since 1990

54 posts
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Multiple Crashes

I have been having a hell of a time today with the XL1201. It keeps crashing to the FEP from Genera. Very frustrating. You can Continue »

Douglas Fields Douglas Fields on symbolics, genera, error, crash 04 July 2016

FEP on Serial

Getting the FEP display on the serial port isn't hard - as long as you want to use the serial port built onto the console. So »

Douglas Fields Douglas Fields on symbolics, fep, serial 04 July 2016

Auto-setting Time

Every time Genera boots, it asks for the time. However, Genera clearly uses the RFC 868 Time Protocol. So, I thought I'd try to make my »

Douglas Fields Douglas Fields on genera, time 04 July 2016

Genera X11 Fonts on Mac

Although away, I have my laptop with me and decided to try to get Xquartz running with the Genera X11 fonts. Find the Genera X11 fonts »

Douglas Fields Douglas Fields on genera, x11, xquartz, font 03 July 2016

Autoboot Serial/Telnet and X

I've decided to take a minor detour when I get back from the gaming convention to make a disk image for someone with an XL400 without »

Douglas Fields Douglas Fields on genera, x11, fep, serial, telnet, xl400 02 July 2016

Displaying Genera on iMac

Well, on a whim I decided to see if I could get Genera running on my iMac's X display. (This way I can spare the 3620 »

Douglas Fields Douglas Fields on screenshot, genera, x11 29 June 2016

Symbolics Filesystems (Updated)

Update 1: Added FEP Kernel image. ams asked me for a few clean filesystems so he can analyze how they work. Happy to oblige. They're here. »

Douglas Fields Douglas Fields on symbolics, genera, fepfs, lmfs, reverse-engineer 29 June 2016

Genera 8.3 Setup, Part 2

Good evening with the XL1201 tonight. TL;DR: Got NFS working on Genera, mostly Need to fix UIDs Showed editing a file on NFS server Showed »

Douglas Fields Douglas Fields on symbolics, genera, screenshot, nfs, fepfs 28 June 2016

Clean Genera 8.3 FEPfs

I was asked to provide a full list of all the files on the XL1201 Genera 8.3 hard drive I received from David K. Schmidt. »

Douglas Fields Douglas Fields on xl1201, genera, screenshot, fepfs 27 June 2016

Setting Up Genera 8.3, Part 1

I'm setting up Genera 8.3 on the XL1201 using a clean hard drive. Literally all this hard drive has on it is Genera 8.3 »

Douglas Fields Douglas Fields on symbolics, genera, xl1201, nfs, screenshot 27 June 2016

XL1201 Power Consumption

I was asked how much power is used by the XL1201. Here are a few data points... XL1201 with only SCSI2SD: 222-233W Console: 106W With the »

Douglas Fields Douglas Fields on xl1201, symbolics, power, cost, console 26 June 2016

XL1201 and SCSI2SD v5 128GB

I'm attempting to use the SCSI2SD v5 with a 128G microSD card. You can find out the size of an SD card attached to a modern »

Douglas Fields Douglas Fields on xl1201, scsi, genera, scsi2sd, cdrom 26 June 2016

SCSI 50 to 68-pin Adapters

Well, it seems that not all SCSI 50-pin female to 68 pin female adapters are created equally. I bought several of these from Amazon, made by »

Douglas Fields Douglas Fields on scsi, xl1201 26 June 2016

Console Internals

This is a Symbolics Model PE36-PCONS, Part No 365404 Rev C console. My serial number is 21811. ("There are many like it, but this one is »

Douglas Fields Douglas Fields on symbolics, console, pcb 25 June 2016

3-button Mouse on MacIvory Fail

TL;DR: Still no luck using 3-button mouse on MacIvory. Need to find MouseKey 1.0 or 1.1 software. My MacIvory III in a Quadra »

Douglas Fields Douglas Fields on symbolics, macivory, mouse 25 June 2016

XL1201 Mini-benchmark

UPDATED July 28, 2016: More mini-benchmark results added. I was asked to do a simple benchmark of the XL1201 by Jerome Ibanes and share the results. »

Douglas Fields Douglas Fields on xl1201, genera, benchmark, lisp 25 June 2016

Status and Next Steps

Status XL1201 running clean Genera 8.3 on X15 drive from DKS MacIvory III running clean Genera 8.3 All physical drives ddpt'd for backup Next »

Douglas Fields Douglas Fields on status, plans 24 June 2016

XL1201 Known Working Disks

Note: After formatting a disk to 1280-byte blocks on Genera, make sure to hard power cycle reboot the computer before trying to use it for a »

Douglas Fields Douglas Fields on xl1201, scsi 24 June 2016

Large SCSI Disks and XL1201

TL;DR: SCSI disks with 20M 1280-byte blocks work SCSI disks with 25M 1280-byte blocks work SCSI disks with 28M 1280-byte blocks work SCSI disks with »

Douglas Fields Douglas Fields on scsi, xl1201, fep, fepfs 24 June 2016

Clean Boot of Genera 8.3

The XL1201 now boots nicely from a new ST318451LW Cheetah drive that David K. Schmidt sent (sold) me. It loads FEP version 333 and a clean »

Douglas Fields Douglas Fields on genera, xl1201, screenshot 24 June 2016
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