32 lines
1.3 KiB
Markdown
32 lines
1.3 KiB
Markdown
# PiShrink #
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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.
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`Usage: ./pishrink imagefile.img`
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## Example ##
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```bash
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[user@localhost PiShrink]$ sudo ./shrink.sh pi.img
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e2fsck 1.42.9 (28-Dec-2013)
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Pass 1: Checking inodes, blocks, and sizes
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Pass 2: Checking directory structure
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Pass 3: Checking directory connectivity
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Pass 4: Checking reference counts
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Pass 5: Checking group summary information
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/dev/loop1: 88262/1929536 files (0.2% non-contiguous), 842728/7717632 blocks
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resize2fs 1.42.9 (28-Dec-2013)
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resize2fs 1.42.9 (28-Dec-2013)
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Resizing the filesystem on /dev/loop1 to 773603 (4k) blocks.
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Begin pass 2 (max = 100387)
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Relocating blocks XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
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Begin pass 3 (max = 236)
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Scanning inode table XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
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Begin pass 4 (max = 7348)
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Updating inode references XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
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The filesystem on /dev/loop1 is now 773603 blocks long.
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Shrunk pi.img from 30G to 3.1G
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```
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## Credits ##
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Thanks to SirLagz for the code to shrink http://sirlagz.net/2013/03/10/script-automatic-rpi-image-downsizer/
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