Eponymous

Migraine
I hate waking up with migraines.

freebsd-update
I'm attempting to update my laptop from FreeBSD 9.1-Beta1 to 9.1-RC1. The freebsd-update(8) utilitly was reporting an error finding the public key. A quick search found this thread. As per tangram's suggestion, I used

env UNAME_r=9.0-RELEASE freebsd-update upgrade -r 9.1-RC1

and then the update began working.

[/unix] [permanent link]

unHide
After a friend's computer became infected with some malware that hides files in your home directory and tries to extort money from you in order to "recover" your data, I was inspired to write this little program.

All it does is search for hidden, non-system files and unhides them. It defaults to the user's home directory (My Documents), but other directories can be chosen.

If anyone wants to try it out, please do. If you do try it, let me know what parts I can do better. I primarily work on embedded systems and Unix daemons professionally; the user only knows my software exists when it isn't working. As such, I have very little experience with GUIs or human-computer interactions. Any feedback would be much appreciated.

The Windows executable can be found at: http://www.skinnymf.com/~mforde/unHide/. Source code is available upon request.

[/code] [permanent link]

1401554904
http://en.m.wikipedia.org/wiki/Amargasaurus

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[/mobile] [permanent link]

Bill Gates is Satan's Minion
Bill Gates was Satan's minion, is Satan's minion, and always will be Satan's minion.

[/musings] [permanent link]

Tenth Runniversary
Today is my tenth runniversary. It's been a decade since I first stepped on that treadmill. Like my first day running, I ran on the treadmill while listening to br\oken. I've had some set backs in my recovery. Not properly rehabilitating the atrophy in the left leg has caused some problems with the muscles around my hip. Listening to my trainer only made it worse. But now I'm taking care of it properly. Like that first day ten years ago, I have a goal I am working toward. This time it is the Dublin Marathon in October. This will be marathon number 13. I don't expect to PR. I think 10 minute miles are a much more reasonable goal at this point, but frankly I'll be happy just to cross that finish line. It's been a long, hard road out of Hell, but God has been by my side and put some amazing people in my life to help me along the way. I have to thank the Giraffes for today. I have to thank the Giraffes for much of my life this last decade. I was heading for an early grave, and they changed that. Giraffes, I thank you from the bottom of my heart and I look forward to running the LTC and many other races with you in the next decade.

[/running] [permanent link]

chdir(2)
So today at work another developer many years my senior, with many more years experience than I, came to me with a Unixy problem.
"When I have a program, how can I have it so the current working directory for all processes it starts isn't the one that it started in?"
"chdir."
"No, I want so that if this process starts something like ls, when ls stats 'dot' I want 'dot' to be the directory that process wants it to be, not the directory that process was started from."
After about 15 minutes of me suggesting chdir while he said that's not what he wanted but then describing chdir, I finally wrote something along the lines of the following

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>

int
main (int argc, char *argv[])
{
  system("/bin/pwd");
  system("/bin/ls");
  chdir("/tmp");
  system("/bin/pwd");
  system("/bin/ls");
  chdir("/etc");
  system("/bin/pwd");
  system("/bin/ls");
  chdir("/");
  system("/bin/pwd");
  system("/bin/ls");
  return 0;
}

I compiled that, ran it, showed him the output. He said, "Yeah, that's what I want to do."
I showed him the code.
"chdir does that?"

[/unix] [permanent link]

Problems with loader.conf

First the background. The story of how I got into this mess:

I'm trying to get ACPI working on my laptop under FreeBSD. Specifically, I'm trying to get Resume to work properly. Suspend works, and resume seems to partially work. The fans spin up, the keyboard's backlight comes back on, but no screen. And without video, it's a little hard to figure out what's going on.

ACPI works great on my server. It's running the same FreeBSD 9.1 x86-64 build that the laptop is, but the biggest difference is that it's an intel motherboard. The laptop is an Alienware, for our purposes, I might as well just call it a Dell.

I started comparing the ASL output from both machines and noticed some things. First, the Alienware's ACPI implementation looks for the OS to be various forms of Windows or "Linux." The intel ACPI implementation also looks for these Windows variants and "Linux" but it has an additional OS string. It has an entry for "FreeBSD."

I figured the easiest next step was to use iasl co compile the intel ASL source and load that DSDT onto the laptop.

I calculated the odds it would work vs the odds I was doing something incredibly stupid... and I went ahead and did it anyway...

I compiled the asl and I set /boot/loader.conf to override the DSDT with the intel one I had just compiled and I rebooted. At first everything was good. The machine went down, I got the boot loader, and the FreeBSD kernel started to load. Seconds into the kernel load, it rebooted itself. After the second time, I powered off and tried a cold boot. Same problem just as I had feared.

Now i was in a situation where I couldn't successfully boot because of an error in loader.conf I needed to find a way to edit it.

And here's the solution:

The FreeBSD bootloader, like many others, works in stages. At a certain point, it can be interrupted at which point it provides a set of simple yet powerful commands to control various aspects of the loading process. If you still have that default menu at load, I beleive the option to chose is 6. I disable that menu so during a brief countdown I hit escape before the boot loader turns control over to the kernel.

Once in the boot loader prompt, I entered the following commands:

unload
load kernel
boot

Pretty simple right? The unload command does what it says, it unloads the kernel and any modules loader.conf had pulled into memory. The load kernel command grabs the kernel and loads it into memory... but only the kernel thus ignoring the broken DSDT in loader.conf. And of course boot tells the boot loader to continue booting the system.

Once booted, I removed the bad DSDT from loader.conf.

[/unix] [permanent link]

1449069975
https://www.instagram.com/p/-ywsdLrXFZ/

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This mobile text message is brought to you by AT&T

[/mobile] [permanent link]

FreeBSD 8 Beta 3 Available
FreeBSD 8.0 Beta 3 is now available for download. The final release is expected in about a month.

[/unix] [permanent link]

Getting closer...
Only 89 days remain until the Philadelphia Marathon.

[/running] [permanent link]

I'm looking California and feeling Minnesota

[/musings] [permanent link]

Eponymous

	About My Infrequently Updated Blog. The web-based journal of M. Forde, computer nerd, endurance athlete, and DeLorean owner contact Subscribe Subscribe to a syndicated feed of my weblog, brought to you by the wonders of RSS. Flavors There's more than one way to view this weblog; try these flavors on for size. index circa 1993 Sections main musings running DeLorean code unix album TBM Archives 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 Disclaimers, Copyrights, Privacy, Etc. ToS Copyrights Links olix0r.net netmeister.org Giraffes Eat. Run. Sleep.

Eponymous

	About My Infrequently Updated Blog. The web-based journal of M. Forde, computer nerd, endurance athlete, and DeLorean owner contact Subscribe Subscribe to a syndicated feed of my weblog, brought to you by the wonders of RSS. Flavors There's more than one way to view this weblog; try these flavors on for size. index circa 1993 Sections main musings running DeLorean code unix album TBM Archives 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 Disclaimers, Copyrights, Privacy, Etc. ToS Copyrights Links olix0r.net netmeister.org Giraffes Eat. Run. Sleep.	29 Aug 2012 Migraine I hate waking up with migraines. [/musings] [permanent link] 28 Aug 2012 freebsd-update I'm attempting to update my laptop from FreeBSD 9.1-Beta1 to 9.1-RC1. The freebsd-update(8) utilitly was reporting an error finding the public key. A quick search found this thread. As per tangram's suggestion, I used env UNAME_r=9.0-RELEASE freebsd-update upgrade -r 9.1-RC1 and then the update began working. [/unix] [permanent link] 20 Aug 2012 unHide After a friend's computer became infected with some malware that hides files in your home directory and tries to extort money from you in order to "recover" your data, I was inspired to write this little program. All it does is search for hidden, non-system files and unhides them. It defaults to the user's home directory (My Documents), but other directories can be chosen. If anyone wants to try it out, please do. If you do try it, let me know what parts I can do better. I primarily work on embedded systems and Unix daemons professionally; the user only knows my software exists when it isn't working. As such, I have very little experience with GUIs or human-computer interactions. Any feedback would be much appreciated. The Windows executable can be found at: http://www.skinnymf.com/~mforde/unHide/. Source code is available upon request. [/code] [permanent link]

Eponymous

	About My Infrequently Updated Blog. The web-based journal of M. Forde, computer nerd, endurance athlete, and DeLorean owner contact Subscribe Subscribe to a syndicated feed of my weblog, brought to you by the wonders of RSS. Flavors There's more than one way to view this weblog; try these flavors on for size. index circa 1993 Sections main musings running DeLorean code unix album TBM Archives 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 Disclaimers, Copyrights, Privacy, Etc. ToS Copyrights Links olix0r.net netmeister.org Giraffes Eat. Run. Sleep.	31 May 2014 1401554904 http://en.m.wikipedia.org/wiki/Amargasaurus ================================================================== This mobile text message is brought to you by AT&T [/mobile] [permanent link]

Eponymous

	About My Infrequently Updated Blog. The web-based journal of M. Forde, computer nerd, endurance athlete, and DeLorean owner contact Subscribe Subscribe to a syndicated feed of my weblog, brought to you by the wonders of RSS. Flavors There's more than one way to view this weblog; try these flavors on for size. index circa 1993 Sections main musings running DeLorean code unix album TBM Archives 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 Disclaimers, Copyrights, Privacy, Etc. ToS Copyrights Links olix0r.net netmeister.org Giraffes Eat. Run. Sleep.	07 May 2020 Bill Gates is Satan's Minion Bill Gates was Satan's minion, is Satan's minion, and always will be Satan's minion. [/musings] [permanent link]

Eponymous

	About My Infrequently Updated Blog. The web-based journal of M. Forde, computer nerd, endurance athlete, and DeLorean owner contact Subscribe Subscribe to a syndicated feed of my weblog, brought to you by the wonders of RSS. Flavors There's more than one way to view this weblog; try these flavors on for size. index circa 1993 Sections main musings running DeLorean code unix album TBM Archives 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 Disclaimers, Copyrights, Privacy, Etc. ToS Copyrights Links olix0r.net netmeister.org Giraffes Eat. Run. Sleep.	13 Mar 2018 Tenth Runniversary Today is my tenth runniversary. It's been a decade since I first stepped on that treadmill. Like my first day running, I ran on the treadmill while listening to br\oken. I've had some set backs in my recovery. Not properly rehabilitating the atrophy in the left leg has caused some problems with the muscles around my hip. Listening to my trainer only made it worse. But now I'm taking care of it properly. Like that first day ten years ago, I have a goal I am working toward. This time it is the Dublin Marathon in October. This will be marathon number 13. I don't expect to PR. I think 10 minute miles are a much more reasonable goal at this point, but frankly I'll be happy just to cross that finish line. It's been a long, hard road out of Hell, but God has been by my side and put some amazing people in my life to help me along the way. I have to thank the Giraffes for today. I have to thank the Giraffes for much of my life this last decade. I was heading for an early grave, and they changed that. Giraffes, I thank you from the bottom of my heart and I look forward to running the LTC and many other races with you in the next decade. [/running] [permanent link]

Eponymous

	About My Infrequently Updated Blog. The web-based journal of M. Forde, computer nerd, endurance athlete, and DeLorean owner contact Subscribe Subscribe to a syndicated feed of my weblog, brought to you by the wonders of RSS. Flavors There's more than one way to view this weblog; try these flavors on for size. index circa 1993 Sections main musings running DeLorean code unix album TBM Archives 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 Disclaimers, Copyrights, Privacy, Etc. ToS Copyrights Links olix0r.net netmeister.org Giraffes Eat. Run. Sleep.	13 Dec 2007 chdir(2) So today at work another developer many years my senior, with many more years experience than I, came to me with a Unixy problem. "When I have a program, how can I have it so the current working directory for all processes it starts isn't the one that it started in?" "chdir." "No, I want so that if this process starts something like ls, when ls stats 'dot' I want 'dot' to be the directory that process wants it to be, not the directory that process was started from." After about 15 minutes of me suggesting chdir while he said that's not what he wanted but then describing chdir, I finally wrote something along the lines of the following #include <stdio.h> #include <stdlib.h> #include <unistd.h> int main (int argc, char argv[]) { system("/bin/pwd"); system("/bin/ls"); chdir("/tmp"); system("/bin/pwd"); system("/bin/ls"); chdir("/etc"); system("/bin/pwd"); system("/bin/ls"); chdir("/"); system("/bin/pwd"); system("/bin/ls"); return 0; } I compiled that, ran it, showed him the output. He said, "Yeah, that's what I want to do." I showed him the code. "chdir does that?" [/unix] [permanent link]*

Eponymous

	About My Infrequently Updated Blog. The web-based journal of M. Forde, computer nerd, endurance athlete, and DeLorean owner contact Subscribe Subscribe to a syndicated feed of my weblog, brought to you by the wonders of RSS. Flavors There's more than one way to view this weblog; try these flavors on for size. index circa 1993 Sections main musings running DeLorean code unix album TBM Archives 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 Disclaimers, Copyrights, Privacy, Etc. ToS Copyrights Links olix0r.net netmeister.org Giraffes Eat. Run. Sleep.	12 Oct 2013 Problems with loader.conf First the background. The story of how I got into this mess: I'm trying to get ACPI working on my laptop under FreeBSD. Specifically, I'm trying to get Resume to work properly. Suspend works, and resume seems to partially work. The fans spin up, the keyboard's backlight comes back on, but no screen. And without video, it's a little hard to figure out what's going on. ACPI works great on my server. It's running the same FreeBSD 9.1 x86-64 build that the laptop is, but the biggest difference is that it's an intel motherboard. The laptop is an Alienware, for our purposes, I might as well just call it a Dell. I started comparing the ASL output from both machines and noticed some things. First, the Alienware's ACPI implementation looks for the OS to be various forms of Windows or "Linux." The intel ACPI implementation also looks for these Windows variants and "Linux" but it has an additional OS string. It has an entry for "FreeBSD." I figured the easiest next step was to use iasl co compile the intel ASL source and load that DSDT onto the laptop. *I calculated the odds it would work vs the odds I was doing something incredibly stupid... and I went ahead and did it anyway...* I compiled the asl and I set /boot/loader.conf to override the DSDT with the intel one I had just compiled and I rebooted. At first everything was good. The machine went down, I got the boot loader, and the FreeBSD kernel started to load. Seconds into the kernel load, it rebooted itself. After the second time, I powered off and tried a cold boot. Same problem just as I had feared. Now i was in a situation where I couldn't successfully boot because of an error in loader.conf I needed to find a way to edit it. And here's the solution: The FreeBSD bootloader, like many others, works in stages. At a certain point, it can be interrupted at which point it provides a set of simple yet powerful commands to control various aspects of the loading process. If you still have that default menu at load, I beleive the option to chose is 6. I disable that menu so during a brief countdown I hit escape before the boot loader turns control over to the kernel. Once in the boot loader prompt, I entered the following commands: unload load kernel boot Pretty simple right? The unload command does what it says, it unloads the kernel and any modules loader.conf had pulled into memory. The load kernel command grabs the kernel and loads it into memory... but only the kernel thus ignoring the broken DSDT in loader.conf. And of course boot tells the boot loader to continue booting the system. Once booted, I removed the bad DSDT from loader.conf. [/unix] [permanent link]

Eponymous

	About My Infrequently Updated Blog. The web-based journal of M. Forde, computer nerd, endurance athlete, and DeLorean owner contact Subscribe Subscribe to a syndicated feed of my weblog, brought to you by the wonders of RSS. Flavors There's more than one way to view this weblog; try these flavors on for size. index circa 1993 Sections main musings running DeLorean code unix album TBM Archives 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 Disclaimers, Copyrights, Privacy, Etc. ToS Copyrights Links olix0r.net netmeister.org Giraffes Eat. Run. Sleep.	02 Dec 2015 1449069975 https://www.instagram.com/p/-ywsdLrXFZ/ ================================================================== This mobile text message is brought to you by AT&T [/mobile] [permanent link]

Eponymous

	About My Infrequently Updated Blog. The web-based journal of M. Forde, computer nerd, endurance athlete, and DeLorean owner contact Subscribe Subscribe to a syndicated feed of my weblog, brought to you by the wonders of RSS. Flavors There's more than one way to view this weblog; try these flavors on for size. index circa 1993 Sections main musings running DeLorean code unix album TBM Archives 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 Disclaimers, Copyrights, Privacy, Etc. ToS Copyrights Links olix0r.net netmeister.org Giraffes Eat. Run. Sleep.	25 Aug 2009 FreeBSD 8 Beta 3 Available FreeBSD 8.0 Beta 3 is now available for download. The final release is expected in about a month. [/unix] [permanent link] Getting closer... Only 89 days remain until the Philadelphia Marathon. [/running] [permanent link]

Eponymous

	About My Infrequently Updated Blog. The web-based journal of M. Forde, computer nerd, endurance athlete, and DeLorean owner contact Subscribe Subscribe to a syndicated feed of my weblog, brought to you by the wonders of RSS. Flavors There's more than one way to view this weblog; try these flavors on for size. index circa 1993 Sections main musings running DeLorean code unix album TBM Archives 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 Disclaimers, Copyrights, Privacy, Etc. ToS Copyrights Links olix0r.net netmeister.org Giraffes Eat. Run. Sleep.	07 Oct 2022 I'm looking California and feeling Minnesota [/musings] [permanent link]