[9fans] Update on my IWP9 paper

2025-07-19 Thread Brian L. Stuart via 9fans
tl;dr: I was wrong, the real-time scheduler is fine, and we shouldn't be using DMA with SPI. In our last episode, broadcast in Paris, I talked about driving an LED matrix and noted that a user-space program, even using real-time scheduling was subject to some flicker. At the time I said that I co

Re: [9fans] Chez Scheme port?

2025-07-17 Thread Brian L. Stuart via 9fans
On Thu, Jul 17, 2025 at 07:00:07PM -0700, Skip Tavakkolian wrote: > Has anyone looked into porting the Chez Scheme compiler? I haven't tried Chez on Plan 9, but I have played a bit with s9fes. If you really want to try something strange, I did do a scheme implemention on Inferno a long time ago.

Re: [9fans] linux vm appliance

2025-06-13 Thread Brian L. Stuart
On Fri, Jun 13, 2025 at 10:33:35PM -0400, o...@eigenstate.org wrote: > the Waynesworld display server is the annointed future, A perfect argument to eschew it. Not that X is perfect, but if there's one thing I've learned, if there's a bandwagon that all the cool kids think is the future, more lik

Re: [9fans] The Big Questioning: Plan 9 everywhere?

2025-06-09 Thread Brian L. Stuart
On Sun, Jun 08, 2025 at 02:05:35PM +0200, ch...@chrisfroeschl.de wrote: > Magnificant elaboration. Thank you for this verbalization! > Indeed, a much better verbalization that I could ever come up with > during my thoughtful walks. Thank you very much, Chris. As I proceed through my 60s, I've acc

Re: [9fans] The Big Questioning: Plan 9 everywhere?

2025-06-06 Thread Brian L. Stuart
So I've been seeing big-picture/philosophical discussions arise on 9fans for about 25 years. Usually I just sit back with my bowl of popcorn and watch. Every once in a while I'll jump in and present a painfully long dissertation, and that's today. For those new to my perspective, I've been at th

[9fans] Latest sign of the apocalypse

2025-06-01 Thread Brian L. Stuart
Well, email scraping has reached a new level of stupidity. I just got a bit of advertising spam on gmail from Best Western hotels with the subject line: Glenda, Happy Best Western Rewards Anniversary! Between that, chatGPT, vscode, and UEFI (along with a thousand other brain-dead misadventures t

Re: [9fans] Re: 9Front and The Future of Platform Support

2025-04-01 Thread Brian L. Stuart
On Tue, Apr 01, 2025 at 10:59:06PM +0200, Roberto E. Vargas Caballero wrote: > On Tue, Apr 01, 2025 at 12:33:47PM -0400, o...@eigenstate.org wrote: > > Quoth Roman Belenov : > > > Why not Alpha? Or it's never-released-for-some-reason successor Iota? > > > > Too niche, obviously. > > I have an alp

Re: [9fans] NIX this morning

2025-03-28 Thread Brian L. Stuart
On Thu, Mar 27, 2025 at 07:47:02AM -0700, ron minnich wrote: > Off to my day job :-) Ron, I've heard rumors (perhaps apocryphal) that there exists a state of being where there is no "day job" and you can spend all your time on things that are more intellectually satisfying than any suit could ever

Re: [9fans] 9phone

2025-03-27 Thread Brian L. Stuart
Stirring from the ashes of the week from hell...* On Mon, Mar 24, 2025 at 11:54:59PM -1000, Anthony Sorace wrote: > Brian Stuart did a port of Inferno to the Sun SPOT hardware, which has some > overlap with the devices in question: > > http://iwp9.org/8e/sunspot.pdf Yes, that would be an exampl

Re: [9fans] git/clone and ssh (g...@github.com)

2025-03-22 Thread Brian L. Stuart
On Sat, Mar 22, 2025 at 01:17:42PM +, Steve Simon wrote: > a few years ago i brought libsec from 9front over to the 4th edition (richard > miller?s pi port) and used that to give ssh2 some more modern / widely > accepted encryption algos. This would be the best solution overall. I've update

Re: [9fans] Re: IWP9 Submissions Deadline extended to March 3rd

2025-02-15 Thread Brian L. Stuart
We have generally been flexible with the page limits, since we don't have a huge number of papers and we aren't making thousands of copies of the proceedings. Thus an extra page or two per paper isn't going to incur a big cost. Last year, we didn't formally print and bind the proceedings. I just

Re: [9fans] Moving files to a USB thumb drive.

2024-08-03 Thread Brian L. Stuart
On Sat, Aug 03, 2024 at 03:49:36PM -0700, Lyndon Nerenberg (VE7TFX/VE6BBM) wrote: > jas.smoke via 9fans writes: > > > I want to copy text files from a Windows PC to a Plan 9 computer using a US= > > B thumb drive.=C2=A0 > > Format the thumb drive as a FAT32 filesystem and stick the files > there

Re: [9fans] cmdline.txt for RPi 4 with QHD screen

2024-04-06 Thread Brian L. Stuart
I wouldn't call it obvious.  :)  It looks like there's at least a difference in where the firmware blobs are kept.  I don't really know how much difference there is in the driver code, but I would expect that there would be a file in /sys/src/9/bcm that is analogous to ether4330.c.  But I'll ha

Re: [9fans] cmdline.txt for RPi 4 with QHD screen

2024-04-05 Thread Brian L. Stuart
I haven't had any trouble with wifi on the 4, with one caveat.  The 400 (and maybe some of the later 4s) have an updated version of the radio.  It just takes a new entry in ether4330.c and new blobs in /sys/lib/firmware.  The entry I've got in my ether4330.c is:     { 0x4345, 9, "brcmfmac43456-

[9fans] IWP9 Update

2024-03-13 Thread Brian L. Stuart
Some of you may have noticed that the original deadline for the camera-readycopy of papers and the WiP reports is today.  The committee has decidedto extend that deadline by one week.  So anyone for whom the edits haveslid to the back burner, you've got a reprieve.  After the new deadline onthe

[9fans] IWP9 Hotels

2024-02-01 Thread Brian L. Stuart
A week ago I sent out a request for interest in a hotel room block at $200/night.  I got exactly one response saying that's what AirBNB is for.  Unless I hear differently by sometime tomorrow, I'll interpret the lack of response as indicating that everyone has or is planning to make their own a

[9fans] IWP9 Housing

2024-01-25 Thread Brian L. Stuart
The housing situation for IWP9 this year in Philadelphia is not ideal. It seems there's a big volleyball tournament in town at the same time, so many hotels have little availability and they're able to charge high rates. However, we have had one that has said they can reserve a block of rooms for u

[9fans] IWP9 10th Edition

2023-11-15 Thread Brian L. Stuart
we will not have totality in Philadelphia, the path of totality is reachable from Philadelphia in less than a day's driving time. So take advantage of the scheduling to experience both one of nature's most amazing events and discussions of computing's most amazing operating system.

Re: [9fans] Re: Fun with sshsession

2022-12-19 Thread Brian L. Stuart
On Thu, Dec 08, 2022 at 06:06:21PM -0600, Steven Stallion wrote: > > I found another interesting wrinkle. It appears this issue seems to > > only affect diskless CPU servers. I'm able to SSH successfully to my > > auth and file servers. > > Mystery solved! It turns out this was the same issue C

Re: [9fans] Raspberry Pi400 Ethernet

2021-05-28 Thread Brian L. Stuart
On Friday, May 28, 2021, 3:12:26 PM EDT, Steve Simon wrote: > sadly i have had problems with usb3 which is on > my todo list - usb2 devices work fine as do usb3 > devices in usb2 sockets. I'll definitely keep that in mind.  I haven't been trying to use any USB3 devices, but who know what'll hap

Re: [9fans] Raspberry Pi400 Ethernet

2021-05-28 Thread Brian L. Stuart
RPi4s request it for no-SD netbooting without hardcoding TFTP_IP in EEPROM */ On Fri, May 28, 2021 at 12:13 PM Brian L. Stuart wrote: > > On Friday, May 28, 2021, 2:52:35 PM EDT, Richard Miller <9f...@hamnavoe.com> > wrote: > >> The really odd part is I just moved the SD c

Re: [9fans] Raspberry Pi400 Ethernet

2021-05-28 Thread Brian L. Stuart
On Friday, May 28, 2021, 2:52:35 PM EDT, Richard Miller <9f...@hamnavoe.com> wrote: >> The really odd part is I just moved the SD card over >> from a pi3 that was booting fine with dhcp. > > Does the MAC address in the dhcp request look right? It does.  I'm at a loss to explain it, but I ended u

Re: [9fans] Raspberry Pi400 Ethernet

2021-05-28 Thread Brian L. Stuart
I'm inclined to think you're on the right track with a dhcp problem.  It seems to be working fine if I set the address manually on the command line. The really odd part is I just moved the SD card over from a pi3 that was booting fine with dhcp.  I'll keep digging. BLS On Friday, May 28, 20

[9fans] Raspberry Pi400 Ethernet

2021-05-28 Thread Brian L. Stuart
So I picked up a pi400 and everything seems happy except the Ethernet.  I'm using Richard's latest 9pi.img from 9p.io.  At least, I'm pretty sure it's the latest; it does include the /dev/serial driver.  The network switch is showing the hardware to be happy and I'm using a cable that has been work

Re: [9fans] Jim McKie

2020-06-25 Thread Brian L. Stuart
I never got to know Jim, but I always respected his contributions. He will be sorely missed. RIP On Wednesday, June 24, 2020, 08:37:21 PM EDT, Charles Forsyth wrote: I am sorry to say that Jim McKie (jmk) died suddenly on 16 June.  https://www.ippolitofuneralhomes.com/obituaries/Jam

Re: [9fans] Plan9 on virtual machine in Mac os

2020-03-25 Thread Brian L. Stuart
On Wednesday, March 25, 2020, 02:02:40 PM EDT, Ethan Gardener wrote: > i still miss 9vx. it was so convenient when it > worked. fun too; i had it full-screened in a little > ... Was? I still use it everyday. It's my primary terminal. I have it take the root from my file server when I'm on my ho

Re: [9fans] Raspberry Pi 2 GPIO

2019-09-16 Thread Brian L. Stuart
On Thursday, September 12, 2019, 5:43:13 AM EDT, Richard Miller <9f...@hamnavoe.com> wrote: > > Do you also need the man pages for i2c and > > spi, or did I send those the first time around? > > If you sent them, they must have gone astray ... if you can > supply a new copy, I'll add them to the

Re: [9fans] Raspberry Pi 2 GPIO

2019-09-10 Thread Brian L. Stuart
On Tuesday, September 10, 2019, 12:21:32 PM EDT, Richard Miller <9f...@hamnavoe.com> wrote: > Thanks Brian, I'll add your man page to the 9pi image for the > next update. You're welcome. Do you also need the man pages for i2c and spi, or did I send those the first time around? Thanks, BLS

Re: [9fans] Raspberry Pi 2 GPIO

2019-09-10 Thread Brian L. Stuart
On Tuesday, September 10, 2019, 10:27:08 AM EDT, Олег Бахарев wrote: > Need man page for this. My bad. I thought I had sent man pages along with the code. I've included the man page for it at the bottom of this message. > Can you get some example for reading/writing GPIO ? I've also included

Re: [9fans] Are there disadvantages to walk?

2019-04-01 Thread Brian L. Stuart
On Mon, 4/1/19, Ethan Gardener wrote: > I remember hearing of some disadvantage to > walking directories, but can't remember what it was.  > Could someone remind me, please?  Perhaps there was > more than one, of course.  Perhaps a performance trick > couldn't be employed? The only complaint I'v

Re: [9fans] Plan 9 C compiler for RISC-V by Richard Miller

2018-10-30 Thread Brian L. Stuart
On Tue, 10/30/18, Richard Miller <9f...@hamnavoe.com> wrote: > > Is there a technical reason (beside fonts that do not cover them) not > > to use a Unicode values for the first letter? > > They're a bit harder to produce on the keyboard. Especially if you're at a VT-220 on the console and can't

Re: [9fans] what heavy negativity!

2018-10-05 Thread Brian L. Stuart
Fri, Oct 5, 2018 at 12:11 AM Mayuresh Kathe wrote: > man, i experienced such heavy negativity towards my efforts to build ... > > the idea was to have a 64-bit linux kernel with the advantages of > plan9port (small and elegantly designed+developed tools). Mayuresh, To echo what others have said,

Re: [9fans] 9P or better file services for multiple platforms

2018-09-01 Thread Brian L. Stuart
On Sat, 9/1/18, Lucio De Re wrote: > I'm trying to arrive at the most elegant solution to the following > problem that does not sacrifice a great deal of efficiency. And, maybe > I need to state this, the final result must be as robust or more > robust than what I have in place currently, which ha

Re: [9fans] What are you using Plan 9 for?

2018-06-27 Thread Brian L. Stuart
On Wed, 6/20/18, Ethan A. Gardener wrote: > but on the back burner is a > Forth-based project; a sort of operating system where the > primary interface to all tasks is a Forth interpreter. So > far, I've written the basics of a text editor. It's > *very* little code! I love seeing this idea comin

Re: [9fans] What are you using Plan 9 for?

2018-06-15 Thread Brian L. Stuart
On Fri, 6/15/18, Mark van Atten wrote: > On Fri, Jun 15, 2018 at 6:44 PM, Brian L. Stuart > wrote: > > Can't say for LInux, but I run it all the time under 64-bit FreeBSD. > > As of 11.0, FreeBSD has its own fdclose() with conflicting types. > https://github.com/0in

Re: [9fans] What are you using Plan 9 for?

2018-06-15 Thread Brian L. Stuart
On Fri, 6/15/18, Lucio De Re wrote: > Great news. I've upgraded my Linux Mint to 64-buit ad I've been > reluctant to experiment with 9vx, which I really like a lot. Can you > confirm thatit runs OK under 64-bit Linux? Do I need to add any > special bits, different from p9p, to get it to compile?

[9fans] Plan9 on Pi 3B+

2018-04-03 Thread Brian L. Stuart
Has anyone tried Plan 9 on the new Pi 3B+? I've run into something that confuses me a bit. First, it seems you need the new version of start_cd.elf to bring up the 3B+. However, with that, the kernel throws a lock loop error. In tracking down the loop, it happens in startcpus() in archbcm2.c.

Re: [9fans] Inferno on Plan9

2018-01-07 Thread Brian L. Stuart
Alexander Kapshuk wrote: > On Thu, Dec 28, 2017 at 9:54 PM, Brian L. Stuart > wrote: >> Which version of FreeBSD did you use, and did you use the >> Inferno on bitbucket?  I'm finding it a long way from building >> out of the box there these days. > > Whil

Re: [9fans] Inferno on microcontrollers

2017-12-31 Thread Brian L. Stuart
On Sun, 12/31/17, Bakul Shah wrote: > I don't think we can assume a more popular plan9 would have > met the fate of Linux. What bothers (some of) us is not that > Linux is mainstream but that it is far too complicated and > kitchensinky. I'd like to think that there can be widespread use without

Re: [9fans] Inferno on Plan9

2017-12-31 Thread Brian L. Stuart
On Sat, 12/30/17, Andre Wingor wrote: > And also ready-made live distributions for launching from USB and > installing on a desktop with simple copying > without admins privileges. I haven't thought about anything along those lines with the hosted versions, but a while back I did start putting t

Re: [9fans] Inferno on microcontrollers

2017-12-31 Thread Brian L. Stuart
On Sun, 12/31/17, Rui Carmo wrote: > I honestly don’t think Plan9 or Inferno will become > “general use” without (at the very least) a modern > browser, For which we can all be grateful. "General use" is not a good thing to be desired. One of the biggest reasons I moved away from Linux was that

Re: [9fans] Inferno on Plan9

2017-12-29 Thread Brian L. Stuart
On Fri, 12/29/17, Bakul Shah wrote: > On Fri, 29 Dec 2017 19:11:22 +0000 "Brian L. Stuart" > wrote: >> I'm at the same point I usually am when getting ready to teach my winter >> term OS >> course. > > Why teach about Inferno? Just curious. It

Re: [9fans] Inferno on Plan9

2017-12-29 Thread Brian L. Stuart
On Fri, 12/29/17, G B wrote: > I used Inferno from bitbucket.org but wasn't able to build > on FreeBSD 11.x/amd64 so I just reverted back to FreeBSD > 9.3/i386.  But I may try to build using 11.1/i386 with > gcc.  I'll have to use KVM on OpenIndiana to try it > though since I don't have a spare ph

Re: [9fans] Inferno on Plan9

2017-12-28 Thread Brian L. Stuart
On Sat, Dec 23, 2017 at 7:13 PM, G B wrote: > I've installed Inferno on FreeBSD but how do you build it for Plan 9?  The > makemk.sh file and without looking, I think the mkconfig file too, reference > gcc.  And the makemk.sh has /bin/sh.  Do I have to install a Bourne or Korn > shell plus gcc fro

Re: [9fans] The Case for Bind

2017-09-15 Thread Brian L. Stuart
On Fri, 9/15/17, Marshall Conover wrote: > I'll start digging in to see what I can do. I think I jumped the > gun by trying to contribute a feature, ... On this point, I'd suggest a slight shift of perspective. This is something that I've tried to convey both to collegues when in industry and t

Re: [9fans] Terminal possibliities...

2016-10-01 Thread Brian L. Stuart
On Sat, 10/1/16, James A. Robinson wrote: > Honestly I had been assuming one of those usb battery packs would work. :) They work pretty well. One I tested with a B+ and a 3.5" LCD screen lasted about 4 hours before it crashed. I should time it with a 3 and one of the DSI interface 7" LCD screen

Re: [9fans] Is 9Fans dead or alive

2016-08-23 Thread Brian L. Stuart
On Tue, 8/23/16, Brantley Coile wrote: > We haven’t stopped using it, but then again, we don’t talk much on the > list. I can say this particular 9 fan isn't dead...just aging. My main file server here at home runs Plan9, but with my own file system, rather than Ken's. My auth server is a Raspbe

Re: [9fans] More about /dev/draw

2016-05-29 Thread Brian L. Stuart
I'll try to answer several questions here together. > I see an image at bell labs for the raspberry pi. > http://plan9.bell-labs.com/sources/contrib/miller/9pi.img.gz > > I see that there are Raspberry Pi 2 Model Bs and Raspberry Pi 3 Model Bs > for sale. Will either one work with that image? I

Re: [9fans] Pi Hats and i2c

2016-03-09 Thread Brian L. Stuart
On Wed, 3/9/16, Vasudev Kamath wrote: >> The second talks to the MMA8451 3-axis accelerometer: >> >> http://cs.drexel.edu/~bls96/plan9/mma8451sa.c > > This link gives Forbidden message (403) Oops. I had the mode set wrong. Try it now and see if works better for you. BLS

Re: [9fans] Pi Hats and i2c

2016-03-09 Thread Brian L. Stuart
On Wed, 3/9/16, Anthony Sorace wrote: > Anyone have any example code using the i2c interface on the pi > I can look at? I'm playing around with several of these, and am not > getting the results I expect (data getting out, but the hats aren't behaving > like they're getting the same bits I think I

Re: [9fans] Wireless on the Pi?

2016-01-09 Thread Brian L. Stuart
On Sat, 1/9/16, Anthony Sorace wrote: > Anyone got anything? USB dongle we can drive, or an ethernet bridge > folks have had good results with? WiFi with WPA2 is ideal, but the only > hard requirement for my use case is power: it needs to either draw directly > or be able to draw power via USB. N

Re: [9fans] rpi emmc

2016-01-02 Thread Brian L. Stuart
On Sat, 1/2/16, David du Colombier <0in...@gmail.com> wrote: > > in diffing bls' version and sources, i see some significant > > differences, but it's not clear which one is more up-to-date. > > Brian Stuart's version is more up-to-date. > > Brian Stuart based his changes on the latest changes fr

Re: [9fans] Pi updates

2016-01-01 Thread Brian L. Stuart
On Fri, 1/1/16, erik quanstrom wrote: > i'm looking @ the gpio interface, and i wonder what the recommended > technique for sampling a pin might be from a shell script? I haven't really used it in shell scripts, but if I were going to do so, I'd probably write up a little utility to take a hex st

Re: [9fans] Pi updates

2015-12-30 Thread Brian L. Stuart
On Wed, 12/30/15, Skip Tavakkolian <9...@9netics.com> wrote: > > - Enhancements for I2C and SPI > > is there an updated devrtc3231.c, or a conventional user space > fs, that uses the new i2c? Yes, there's a devi2c userland interface ported over from Inferno. That's what's being used to drive the

Re: [9fans] Pi updates

2015-12-29 Thread Brian L. Stuart
On Mon, 12/28/15, Anthony Sorace wrote: > And yes, I’d be interested in seeing your > slides, although you’ve already given me > enough to keep my busy for a bit. Anthony, I've put the slides up in the directory at: http://cs.drexel.edu/~bls96/plan9/ The class met one night a week and we have

Re: [9fans] Pi updates

2015-12-29 Thread Brian L. Stuart
> Excellent.  I had suspected that statement was too restrictive, but hadn't > seen the errata or gotten around to checking on a scope.  I'll update that > today. New versions posted. spiclock() now rounds the divisor up to the smallest even number that results is a clock rate less than or equal

Re: [9fans] Pi updates

2015-12-29 Thread Brian L. Stuart
> but http://raspberrypi.org/documentation/hardware/raspberrypi/spi/README.md > has an erratum suggesting "power of 2" should be "multiple of 2".  I have > been using a default divisor of 250 for a 1MHz clock, and that's the frequency > I see on my oscilloscope. Excellent. I had suspected that st

[9fans] Pi updates

2015-12-28 Thread Brian L. Stuart
A few months ago I brought up the question of small platforms suitable for a course on small/embedded computing. If you recall the conversation, with input from the collective wisdom, I decided to use the Pi. At that time several people asked if I could share any results from the course that I'm a

Re: [9fans] Small Plan 9 Platforms

2015-08-15 Thread Brian L. Stuart
On Fri, 8/14/15, Brian L. Stuart wrote: > The fundamental issue ... hwdraw(). Tonight's update: Forget what I said last night about hwdraw() and the difficulty of connecting into the devdraw/memdraw/screen stack. I had one of those embarrassing "how did it ever work" bugs.

Re: [9fans] Small Plan 9 Platforms

2015-08-15 Thread Brian L. Stuart
On Sat, 8/15/15, Joseph Stewart wrote: > Brian, does your uni let you publish your curriculum or course notes? > Is this something you've ever considered? I should be able to do at least something along those lines. There are corners of the university that get twitchy about making available for

Re: [9fans] Small Plan 9 Platforms

2015-08-15 Thread Brian L. Stuart
On Sat, 8/15/15, hiro <23h...@gmail.com> wrote: > cute, you should ship with fresnel lenses, then the reference is complete: > http://www.wikinoticia.com/images2//s2.alt1040.com/files/2011/11/Brazil2-800x528.jpg rotfl... I hadn't made the association until you mentioned it. I may have to mentio

Re: [9fans] Small Plan 9 Platforms

2015-08-15 Thread Brian L. Stuart
On Sat, 8/15/15, Steve Simon wrote: > Vncserv must do something similar, maybe that is worth looking at. > I went down a similar route but am planning to just address > the display as a different type of device, rather than as a plan9 display. Good point. Hadn't thought about that. I'll take a

Re: [9fans] Small Plan 9 Platforms

2015-08-14 Thread Brian L. Stuart
> I have tried to email BLS but fear I am being spam filtered... you there? I did get one message from you, and replied earlier today. Hopefully it got through. A little more update on recent pi playing. I've been working on a little toy the last few days, namely one of those small SPI driven L

Re: [9fans] Small Plan 9 Platforms

2015-08-12 Thread Brian L. Stuart
On Wed, 8/12/15, Skip Tavakkolian <9...@9netics.com> wrote: > the gpio pins don't seem accessible through a filesystem api > like i see in plan9-bcm (unless i've missed something). I'm pretty sure it's not there. >  it would be great to merge that capability in. I've made a start on that this af

Re: [9fans] Small Plan 9 Platforms

2015-08-12 Thread Brian L. Stuart
On Wed, 8/12/15, David du Colombier <0in...@gmail.com> wrote: > > Is all that on sources somewhere or accessible otherwise? > > Richard's latest Raspberry Pi repository is available here: > > /n/sources/contrib/miller/9/bcm Cool. Somehow I missed that. I'll pull it and play with it. Using the

Re: [9fans] Small Plan 9 Platforms

2015-08-11 Thread Brian L. Stuart
> Richard has an i2c and spi driver for the pi. I grafted the inferno > i2c file system interface on top of Richards driver, though > the sub addressed reads are awaiting my return from > holiday. Steve, Is all that on sources somewhere or accessible otherwise? Last night, I pulled devbcm from pla

Re: [9fans] Small Plan 9 Platforms

2015-08-07 Thread Brian L. Stuart
On Thu, 8/6/15, lu...@proxima.alt.za wrote: > Olimex in Bulgaria manufacture and market worldwide a very wide > range of AVR and ARM based boards and peripherals.  They target > the DIY market.  Pay their site (olimex.com works for me) a visit. They do look interesting, and I like their intention

Re: [9fans] Small Plan 9 Platforms

2015-08-07 Thread Brian L. Stuart
On Wed, 8/5/15, Skip Tavakkolian wrote: > RPI's running something like plan9-bcm (check github) where gpio > is exposed should work. I'm going to try plan9-bcm this weekend; > i'll keep you posted. Thanks for the pointer. I'll definitely check that out. I'm hoping to expose them to a little bit

Re: [9fans] Small Plan 9 Platforms

2015-08-07 Thread Brian L. Stuart
On Wed, 8/5/15, Charles Forsyth wrote: > I think the big advantage of the Rpi or Rpi2 (for speed, > memory and cores)is that there's a wealth of published > projects for them, including hardware ones, and other stuff, > and they aren't likely to go away. It's true that lacking SATA > and Gb Ether

[9fans] Small Plan 9 Platforms

2015-08-05 Thread Brian L. Stuart
I'm teaching a special topics course this fall I'm calling Computing in the Small. Right now, I'm leaning toward conducting it on a platform that runs Plan 9. I'm looking for something based on ARM or MIPS and that has some useful connection to the external world in the form of GPIOs. SPI, I2C,

Re: [9fans] ssh handshake failed

2015-03-27 Thread Brian L. Stuart
> trying to connect from 9atom via ssh (v2) to my linux machine I get: > > ssh: dial: handshake failed > > What should I check that might have gone wrong? > (The machine is otherwise accessible from other systems via > ssh.) The first thing to check is whether the Linux box is configured to do pa

Re: [9fans] Raspberry Pi 2 Model B

2015-02-07 Thread Brian L. Stuart
> Apparently you can crash one with a light bulb: I once read that a similar thing happened when the IBM 701 was first unveiled to the press. IBM had put the CRT-based storage devices behind smoked plexiglass, and one could see the memory visually. Naturally, the photographers took flash pictures

Re: [9fans] ssh2 (at least the legacy version) seems incompatible with

2015-01-27 Thread Brian L. Stuart
> ok, i found some more diagnostic messages in /sys/log/sshdebug: > ... > The problem might be that `dh.c` has an empty implementation of `dh_client142` > ... Ingo, I must admit to being the guilty party for the SSHv2 implementation. Though Geoff gets credit for cleaning up what was some of my ugl

Re: [9fans] DNS/DHCP/AUTH with Raspberry Pi?

2014-10-10 Thread Brian L. Stuart
> I'm new to Plan9, using acme/p9p for a couple of months, and > I want to add plan9 machines to my network. I'm thinking > that a DNS/DHCP/AUTH server will be an easy step. If this > machine could have the role of an Internet > firewall/nat-router it will be even better. > > Do you think plan9+ra

Re: [9fans] [Solved] Anonymous function formal parameter

2014-10-10 Thread Brian L. Stuart
> int > trans(int c, char *) > { > > That parameter seems not to be used inside. That may answer > the question... Yes, that is the answer. By alowing a parameter name to be omitted, the compiler can warn you about unused parameters without having to add clutter that explicitly says, "I'm ignori

Re: [9fans] The Third Button

2014-07-24 Thread Brian L. Stuart
> Would it be possible to create the option of merging these two buttons > for machines not blessed with the traditional rodent? If you hold down the right shift key while pressing the right button, it interpretes that as a middle button press. I'm not completely certain, but I seem to remember

Re: [9fans] Plan9 Sources Repository

2014-07-19 Thread Brian L. Stuart
> My whole argument goes about the following hypotheses: > 1. increasing the amount of contributions may not scale in > the current model. > 2. submitting trivial contributions is not trivial for the contributor. Both of these points seem to come from a mental model that just doesn't apply to Plan

Re: [9fans] Plan9 Sources Repository

2014-07-19 Thread Brian L. Stuart
>       - having an SSH2 server (there is one in 9atom, but I didn't  > see it in the stock Plan9). Geoff included the same ssh implementation as 9atom has in /sys/src/cmd/ssh2 but with some code clean-up. So the server code is there. I've been meaning to go back an reconcile the two different

Re: [9fans] Plan9 Sources Repository

2014-07-19 Thread Brian L. Stuart
>> you may edit the wiki yourself to correct these issues. > > The Wiki seems to be frozen (i.e., not editable anymore): > - no "Edit" button on > http://www.plan9.bell-labs.com/wiki/plan9/software_for_Plan_9/ It was changed some time back to allow edits only using the acme wiki interface, ra

Re: [9fans] simplest disk filesystem

2014-07-15 Thread Brian L. Stuart
> I’m trying to make a tutorial explaining the code of > a not too large kernel (9), but there are too many > things to explain so I have to cut things. So having > a simple fs which does not require to explain 9p, the > rpc, the mount device, etc would be great. In that case, I'd suggest using d

Re: [9fans] simplest disk filesystem

2014-07-15 Thread Brian L. Stuart
> I’m looking for a very simple in-kernel filesystem. What's motivating the desire for to be in-kernel? Nearly, every file system in Plan 9 runs in user space. All the ones that have been mentioned do. The only in-kernel file system in the labs' distribution is devroot which is read-only and in

Re: [9fans] Question about fossil

2014-06-09 Thread Brian L. Stuart
> With the trick I am talking about, there is nothing to stop > you from connecting to N different remote ventis.  In effect > your local (by that I mean under your control, not necessarily > on the same machine) venti can be treated as just a buffer! I took a look at some things along those line

Re: [9fans] Mistake in Plan9 Mercual port?

2014-05-31 Thread Brian L. Stuart
> ssh2 doesn't work with passwords (at > least not without changing server > settings), you need to use keys. It does work with real password auth, but current OpenSSH distros default to not allowing real password auth. They use keyboard-interactive instead, and it's set up to look to the user ju

Re: [9fans] dual boot

2014-05-25 Thread Brian L. Stuart
> BTW, I recently got hold of your OS book. Very nice book, especially > the inferno parts, which was my primary interest when I bought the > book. Thanks, Ram.  I'm glad you're enjoying it.  In the midst of moving and preparing to return to the classroom this summer, I plan to get the copyright

Re: [9fans] dual boot

2014-05-25 Thread Brian L. Stuart
> It now > booted but the username "ram" didn't have > any of the rc init files. There's a script in /sys/lib/newuser that sets up an initial set of scripts and directories for a newly created user.  The newuser(8) man page give more detail. BLS

Re: [9fans] growing/shrinking venti arena files -OR- arena file format

2012-11-26 Thread Brian L. Stuart
> I'm wondering if anyone can shed some light on growing > and/or shrinking arena files (i.e., disk partitions).  > With the growing popularity of logical volume management, > vitrualization, etc., resizing partitions is becoming > more and more common, and many file systems already > have "resize"

Re: [9fans] iwp9

2012-11-19 Thread Brian L. Stuart
> Americans aren't really creative with their city > names. They should learn from the welsh. :) Yeah, we probably do need more where half of the consonants are silent :) On the other hand, I always thought Bucksnort, Tennessee was pretty creative... Well, maybe creative is too strong a word---

Re: [9fans] off-topic: why linux lost the desktop

2012-10-18 Thread Brian L. Stuart
>>The question is rather: What killed the Plan 9 desktop? >> >> 1) Lack of modern GUI and GUI development kit >> 2) Lack of Object Oriented GUI configuration tools >> 3) Lack of a decent web0browser >> 4) Lack of a decent communication/messaging client >>

Re: [9fans] how up to date are the PDF doc files onplan9.bell-labs.com?

2012-05-03 Thread Brian L. Stuart
> I just activated my Kindle.  I mailed myself the PDF of > gawk.1 (of course). > At fit-to-screen it's too small, but rotated and increased > size it's better. > > As an emergency place to keep the Plan 9 manuals, it sure > beats lugging > around all that paper. :-)  I'll be experimenting some >

Re: [9fans] SSHv2

2012-04-02 Thread Brian L. Stuart
> It seems to be failing only when factotum is already > populated with > keys (I should point out: keys unrelated to the hosts I'm > trying to > login to with the new ssh): > > term% sshtun -d > > term% ssh2 openbsd > Verifying server signature > In rsa_verify for connection: 0 > got error in fa

Re: [9fans] SSHv2

2012-04-02 Thread Brian L. Stuart
> After rebuilding nfactotum and > starting it in a fresh window, > I'm able to login to all of the previously tried remote > hosts. For the reference of future search engines I have a guess on what you might have been seeing. If in the original window, you had attempted to run ssh with an instan

Re: [9fans] SSHv2

2012-04-02 Thread Brian L. Stuart
> > The client side logs will be in > /sys/log/ssh > > This was not created on my system. My bad. He only uses syslog when he's in the role of server, not client. BLS

Re: [9fans] SSHv2

2012-04-02 Thread Brian L. Stuart
> Add this key? (yes, no, session) yes > ssh2: dial: handshake failed One other thing that might be instructive is to look at the logs. The client side logs will be in /sys/log/ssh and the server's are often in something like /var/log. They might have something that will help us pinpoint where it

Re: [9fans] SSHv2

2012-04-02 Thread Brian L. Stuart
> After patching ndb/cs and running > nfactotum, I'm still having > some trouble getting the new ssh to successfully login to a > remote system: > > term% ssh2 openbsd > The following key has been offered by the server: > ek=10001 > ... > > Add this key? (yes, no, session) yes > ssh2: dial: hands

Re: [9fans] GSoC application & ideas page

2012-03-14 Thread Brian L. Stuart
> >> I'd suggest to complete native SSH2 implementation. > > > > ... > > Let's not take this one completely off the table yet.  SSHv2 > would be extremely useful in helping open up communication > with external systems again. As Erik said, there is a substantial effort here, probably more than w

Re: [9fans] copying over 9P using plan9port

2011-10-04 Thread Brian L. Stuart
> I can then cd and explore the bell labs sources via > plan9port, so that > works just fine. > > When I then try something like > > cp -ar sources/plan9/sys/src/ape ape > > I get an error stating: > unexpected open flags 050cp: can not open > ”sources/plan9/sys/src/ape/9src/mkfile” for read

Re: [9fans] Announcing Inferno for Android phones

2011-09-23 Thread Brian L. Stuart
> >> The Wank E5 was AU$50. > > Why is it that I can't quite summon up the courage to do a > google search for "wank phone"? Because it will cost you $4.99 a minute?

Re: [9fans] MetaPost added to kerTeX!

2011-05-20 Thread Brian L. Stuart
> I will rest on my laurels for the remaining of the week... You've earned it. Congrats and thanks BLS

Re: [9fans] 9vx Binary for Mac OS X

2011-05-04 Thread Brian L. Stuart
> > it should be as simple as 'make 9vx/9vx' issued in > vx32/src. > > knowing the right make target was the stumbling block for > me too, a few months ago. I'm thinking it should be > documented. the ADVENTURE file gives wrong instructions (cd > src; make; make install) That's what makes it an A

Re: [9fans] Compiling 9atom kernel WAS: Re: spaces in filenames

2011-04-28 Thread Brian L. Stuart
Ron wrote: > andrey mirtchovski > > wrote: > >> This is great! > > > > it is, isn't it? 6 seconds kernel compile, 15 seconds > turnaround time > > when developing anything in the kernel (with PXE > boot). beat that, > > modern operating systems :) > > yes, I had to help config and build a linux k

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