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joshenders / flatcar_incus_setup.md
Last active April 17, 2025 03:02
Flatcar Container Linux UEFI Setup Under Incus on Debian

Flatcar Container Linux Setup Under Incus on Debian

In case you missed it, Canonical relicensed LXD under AGPLv3 in December 2023 with a mandatory CLA. The LXD project was hard forked as Incus and licensed under an Apache 2.0 License.

Incus is maintained by the same team of developers that first created LXD and is recommended for new users going forward.

Install and configure

Borrowed from here.

@joshenders
joshenders / devkitpro_setup_macos.md
Last active April 1, 2025 14:05
Getting started with Nintendo Switch Development using devkitpro on macOS

Getting started with Nintendo Switch Development using devkitpro on macOS

Prerequsite: Ensure Xcode command line tools are installed

xcode-select --install

Install the devkitpro Package Manager

@joshenders
joshenders / gist:3976698
Last active December 17, 2024 15:50 — forked from vena/gist:2856490
How to install Netatalk 3.1.6 under Debian Wheezy

1. Install dependencies

apt-get install automake avahi-daemon build-essential checkinstall db5.1-util db-util git-core libacl1-dev libavahi-client-dev libdb5.1-dev libgcrypt11 libgcrypt11-dev libpam0g-dev libtool pkg-config

2. Download and unpack source

cd /usr/src/
wget http://prdownloads.sourceforge.net/netatalk/netatalk-3.1.6.tar.gz
tar -xvzf netatalk-3.1.6.tar.gz
@joshenders
joshenders / openwrt_lxd_multiwan.md
Last active October 20, 2024 03:16
OpenWrt 23.05.x Setup Under LXD 5.x on Debian 12 with PCI Passthrough

OpenWrt 23.05.x Setup Under LXD 5.x on Debian 12 with PCI Passthrough

In case you missed it, Canonical relicensed LXD under AGPLv3 in December 2023 with a mandatory CLA. The LXD project was hard forked as Incus and licensed under an Apache 2.0 License.

Incus is maintained by the same team of developers that first created LXD and is recommended for new users going forward.

If you continue with this guide using Incus, substitute incus for lxc in each command.

Install lxd via snap and configure

💡 If using Debian 12 (Bookworm) or newer, you can just apt install lxd but keep in mind this pacakge is EOL and new users are encouraged to move to Incus.

@joshenders
joshenders / swap.md
Last active October 2, 2024 05:03
Stop making swap partitions

Stop making swap partitions—use swap files instead!

Swap files have had the same performance characteristics as swap partitions for almost 20 years[1] and yet, linux distributions continue to encourage the use of swap partitions during install.

Swap files are easier to use/add/remove/modify/extend after installation. They're better in every way––use swap files!

  1. Create a swap file.

💡 You can use dd for this too but if your filesystem supports it, fallocate is faster.




  


  




    


          
    

      

        
        

          

              @joshenders
          

          

            
                joshenders
                / make_ipxe_uefi_usb.md
            
            

              Created
              August 29, 2017 08:10
                — forked from AdrianKoshka/make_ipxe_uefi_usb.md
            

              
                Making a UEFI bootable iPXE USB drive
              
          

        

      

        

  

      

    
Making a UEFI bootable iPXE USB drive


Build the UEFI executable for iPXE


# First we'll clone iPXE
$ git clone git://git.ipxe.org/ipxe.git
# Go into the src directory of the cloned git repo
$ cd ipxe/src
# Compile the UEFI iPXE executable



  


  




    


          
    

      

        
        

          

              @joshenders
          

          

            
                joshenders
                / usbloadergx_hdd.md
            
            

              Last active
              July 25, 2024 21:54
            

              
                How to format a USB drive for storing GameCube games
              
          

        

      

        

  

      

    
Why do we change the cluster size when formatting USB drives for storing GameCube games?


For loading GC Games with USBLoaderGX via DiosMios/Nintendont, format your usb drive's primary partition as FAT32 with 32KB clusters (also known as blocks). This increases performance by reducing the NUMBER of transactions required to perform a read/write operation at the expense of the (very negligible) LENGTH of time to complete a transaction; since it's reading more data per transaction.


I'm not certain, since I can't find a GameCube disk specification, but I don't think the 32KB cluster size is an attempt to imitate the on-disk storage format of retail GameCube discs; which may or may not be 32KB. Retail Wii discs however, actually DO use 32KB clusters. As far as I can tell, 32KB is simply the highest density of bytes per cluster that is supported by FAT32 and of course, by extension, Wii homebrew storage libraries.


If you're concerned about storage efficiency



  


  




    


          
    

      

        
        

          

              @joshenders
          

          

            
                joshenders
                / string1.py
            
            

              Created
              June 13, 2013 19:20
            

          

        

      

        

  

    
    


        



  


  

        

          
          #!/usr/bin/python -tt
        

        

          
          # Copyright 2010 Google Inc.
        

        

          
          # Licensed under the Apache License, Version 2.0
        

        

          
          # http://www.apache.org/licenses/LICENSE-2.0
        

        

          
          

        

        

          
          # Google's Python Class
        

        

          
          # http://code.google.com/edu/languages/google-python-class/
        

        

          
          

        

        

          
          # Basic string exercises
        

        

          
          # Fill in the code for the functions below. main() is already set up
        

  





    


  




    


          
    

      

        
        

          

              @joshenders
          

          

            
                joshenders
                / sshrc
            
            

              Created
              March 13, 2015 12:47
            

              
                /etc/ssh/sshrc to fix X11 Forwarding on Debian
              
          

        

      

        

  

    
    


        



  


  

        

          
                  if read proto cookie && [ -n "$DISPLAY" ]; then
        

        

          
                          if [ `echo $DISPLAY | cut -c1-10` = 'localhost:' ]; then
        

        

          
                                  # X11UseLocalhost=yes
        

        

          
                                  echo add unix:`echo $DISPLAY |
        

        

          
                                      cut -c11-` $proto $cookie
        

        

          
                          else
        

        

          
                                  # X11UseLocalhost=no
        

        

          
                                  echo add $DISPLAY $proto $cookie
        

        

          
                          fi | xauth -q -
        

        

          
                  fi
        

  





    


  




    


          
    

      

        
        

          

              @joshenders
          

          

            
                joshenders
                / nodejs.md
            
            

              Last active
              November 30, 2023 00:32
            

              
                How to patch the NodeJS binary to write perfdata to a path other than /tmp
              
          

        

      

        

  

      

    
Background


The current verison of NodeJS hardcodes the path where perf data is written when the --perf-basic-prof flag is used.


https://github.com/v8/v8/blob/061c2ab23a1d4cd192b935e7912e7dfb1fed845d/src/log.cc#L236


At Pinterest, /tmp has limited capacity and so we weren't able to utilize perf data to troubleshoot NodeJS without filling the disk and crashing the running system.


How to patch


First I'll copy the system node binary to my local directory so this set of actions isn't destructive to the running system: