PiShrink dockerized

PiShrink automatically shrink a Raspberry Pi image in order to reduce the final image size.

It's great for saving disk space or sharing your Pi image on the Internet.

This project is a dockerized version of the PiShrink bash script by Drew Bonasera.

Usage

1. Make a copy of a Raspberry Pi SD card that you want to shrink (see instructions here).

2. Using the Terminal, access the directory containing the Raspberry Pi image:

   cd ~/Directory-with-RPi-image

3. Run PiShrink dockerized:

   docker run --privileged=true --rm \
       --volume $(pwd):/workdir \
       monsieurborges/pishrink \
       pishrink -Zv IMAGE.img NEW-IMAGE.img

PiShrink options

pishrink [-adhrsvzZ] IMAGE.img NEW-IMAGE.img

  -s         Don't expand filesystem when image is booted the first time
  -v         Be verbose
  -n         Disable automatic update checking
  -r         Use advanced filesystem repair option if the normal one fails
  -z         Compress image after shrinking with gzip
  -Z         Compress image after shrinking with xz
  -a         Compress image in parallel using multiple cores
  -d         Write debug messages in a debug log file

If you specify the NEW-IMAGE.img parameter, the script will make a copy of IMAGE.img and work off that. You will need enough space to make a full copy of the image to use that option.

Check out PiShrink GitHub for more details.

Docker Hub

• monsieurborges/pishrink

Author

• Monsieur Borges

License

The source code is licensed under the MIT license.

The content of this project itself is licensed under the Creative Commons Attribution 4.0 International.