Search found 1577 matches

by robespierre
Tue Nov 07, 2017 3:53 pm
Forum: SGI: Computer Graphics
Topic: Maya Irix Software Render scene
Replies: 24
Views: 763

Re: Maya Irix Software Render scene

but one day I close the console and I can't find the way to re-open it

It should be under the System toolchest
by robespierre
Fri Nov 03, 2017 1:17 pm
Forum: SGI: Hardware
Topic: ColorLock internals
Replies: 15
Views: 274

Re: ColorLock internals

the device appears to be a dual phototransistor, and the capacitor is between the shared collector and one of the emitters
by robespierre
Fri Nov 03, 2017 6:34 am
Forum: SGI: Hardware
Topic: ColorLock internals
Replies: 15
Views: 274

Re: ColorLock internals

I have not seen the circuit board in the ColorLock, but simple devices have simple schematics, which can be reconstructed in single-digit hours of time, with the right approach. Sometimes the value is not critical, but knowing this depends on its role in the circuit. For example, by knowing that the...
by robespierre
Fri Nov 03, 2017 2:32 am
Forum: SGI: Hardware
Topic: ColorLock internals
Replies: 15
Views: 274

Re: ColorLock internals

Small SMD capacitors are rarely marked in any useful way. The only means of replacing it are
1) Taking a working unit, removing the capacitor, and measuring it
2) Guessing a value from the schematic and putting one in
by robespierre
Thu Nov 02, 2017 10:33 pm
Forum: Miscellaneous Operating Systems/Hardware
Topic: Xerox Alto Restoration
Replies: 37
Views: 2377

Re: Xerox Alto Restoration

Our intrepid explorers put their experience to work restoring an Alto that was stored in a barn:



by robespierre
Sat Oct 28, 2017 11:43 am
Forum: Everything Else
Topic: What pointless thing are you doing right now?
Replies: 317
Views: 19264

Re: What pointless thing are you doing right now?

I thought he said, "God forbids networking"? Good luck with that...
by robespierre
Thu Oct 26, 2017 10:00 pm
Forum: IRIX and Software
Topic: Indigo Fresh Install Problems
Replies: 17
Views: 677

Re: Indigo Fresh Install Problems

6 feet is about the limit for single-ended 10 MHz SCSI. The CDROM drive will probably negotiate at 5 MHz, though, so it should be okay. I agree that shorter lengths are more reliable (the long cables like 6 or 10 feet are mainly designed for differential systems, which can be much longer because of ...
by robespierre
Sun Oct 22, 2017 8:34 pm
Forum: Miscellaneous Operating Systems/Hardware
Topic: Xerox Alto Restoration
Replies: 37
Views: 2377

Re: Xerox Alto Restoration

Smalltalk-76 running again on the Alto:
http://www.righto.com/2017/10/the-xerox ... iting.html
by robespierre
Sat Oct 21, 2017 4:38 pm
Forum: Getting Started, Documentation, Tips & Tricks
Topic: New O2 owner. It is so cute!
Replies: 7
Views: 347

Re: New O2 owner. It is so cute!

Partition number 7 is conventionally an option (non-bootable) partition. The "partition" that spans the disk is number 10, also known as /dev/dsk/dks0d4vol once Irix is running ("vol" stands for "the whole volume"). Trying to use the whole disk as if it were a filesyste...
by robespierre
Sat Oct 21, 2017 1:34 am
Forum: Getting Started, Documentation, Tips & Tricks
Topic: New O2 owner. It is so cute!
Replies: 7
Views: 347

Re: New O2 owner. It is so cute!

fatalhalt wrote:I was impressed that the PROM can read EFS file system directly

It can't do that on its own; it needs sash to read EFS or XFS. This is similar to second-stage boot loaders for SunOS and other unix systems.
by robespierre
Thu Oct 19, 2017 12:23 pm
Forum: SGI: Development
Topic: rdesktop 1.8.3
Replies: 18
Views: 873

Re: rdesktop 1.8.3

I'll admit I have no experience with RDP, but surely 24-bit and 32-bit are the same thing, just RGB vs RGBA?
by robespierre
Mon Oct 16, 2017 2:53 pm
Forum: SGI: Security
Topic: WPA and WPA2 clients are all vulnerable to the KRACK attack.
Replies: 4
Views: 294

Re: WPA and WPA2 clients are all vulnerable to the KRACK attack.

Correct, but as I understand it, the issue can be mitigated on the router side by patching the router to send the "one-time" handshake key once, and only once, rather than allowing a key to be re-sent multiple times in the absence of client acknowledgment. Yes, that would be a good idea. ...
by robespierre
Mon Oct 16, 2017 4:26 am
Forum: SGI: Security
Topic: WPA and WPA2 clients are all vulnerable to the KRACK attack.
Replies: 4
Views: 294

WPA and WPA2 clients are all vulnerable to the KRACK attack.

So saith https://www.krackattacks.com/ The paper is at https://papers.mathyvanhoef.com/ccs2017.pdf Summary: after WEP was found to be fatally insecure, the 802.11i amendment introduced a new key negotiation protocol, the "4-way handshake". It was mathematically proven to be secure. Two enc...
by robespierre
Sun Oct 15, 2017 2:50 pm
Forum: Everything Else
Topic: I've Had It With Firefox - Alternatives I'm Exploring
Replies: 25
Views: 801

Re: I've Had It With Firefox - Alternatives I'm Exploring

RiseUp is apparently the host for the Tails git repository, which is a plausible reason to support them. They were also raided by the FBI several years back for being on the same VPN node as an anonymous remailer. Mozilla itself, though, has shown itself to be a bad actor. From selling its users' da...
by robespierre
Sun Oct 15, 2017 12:25 am
Forum: SGI: Hardware
Topic: problems on octane random shut downs
Replies: 9
Views: 707

Re: problems on octane random shut downs

Yes now i managed to damage the scsi bus i believe, removed the tape drive without powering off the computer and now the os get stuck when booting, i can boot fine from the installer cd but the installation never finish :'( get stuck at the same point the os boot. I don't think you damaged the bus ...

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