Make your pi images smaller!

pi-image raspberry-pi raspberrypi sd-card shell-script

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Sean Mayo 0b04de8118 reverted to using raspi-config to be used for automatic image resizing while not having to rely on the raspi-config tool does make the pishrink utility more portable, the raspi-config tool is already properly maintained. rather than being forced to maintain the autosizing utility in this script (which has already been broken for several months due to a linux kernal change), it just makes more sense to not have to rewrite properly maintained code.		2017-07-07 15:53:20 -07:00
LICENSE	Initial Commit	2016-04-11 23:05:00 -04:00
README.md	Add getops to script to provide user the ability to skip autoexpanding process of the script	2016-07-09 20:45:54 -07:00
pishrink.sh	reverted to using raspi-config to be used for automatic image resizing	2017-07-07 15:53:20 -07:00

README.md

PiShrink

PiShrink is a bash script that automatically shrink a pi image that will then resize to the max size of the SD card on boot. This will make putting the image back onto the SD card faster and the shrunk images will compress better.

Usage: ./pishrink [-s] imagefile.img [newimagefile.img]

If the -s option is given the script will skip the autoexpanding part of the process. If you specify the newimagefile.img parameter, the script will make a copy of imagefile.img and work off that. You will need enough space to make a full copy of the image to use that option.

Example

[user@localhost PiShrink]$ sudo ./shrink.sh pi.img
e2fsck 1.42.9 (28-Dec-2013)
Pass 1: Checking inodes, blocks, and sizes
Pass 2: Checking directory structure
Pass 3: Checking directory connectivity
Pass 4: Checking reference counts
Pass 5: Checking group summary information
/dev/loop1: 88262/1929536 files (0.2% non-contiguous), 842728/7717632 blocks
resize2fs 1.42.9 (28-Dec-2013)
resize2fs 1.42.9 (28-Dec-2013)
Resizing the filesystem on /dev/loop1 to 773603 (4k) blocks.
Begin pass 2 (max = 100387)
Relocating blocks             XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
Begin pass 3 (max = 236)
Scanning inode table          XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
Begin pass 4 (max = 7348)
Updating inode references     XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
The filesystem on /dev/loop1 is now 773603 blocks long.

Shrunk pi.img from 30G to 3.1G

Contributing

If you find a bug please create an issue for it. If you would like a new feature added, you can create an issue for it but I can't promise that I will get to it.

Pull requests for new features and bug fixes are more than welcome!