Image File Fragmentation - erichelgeson/BlueSCSI GitHub Wiki

What?

If the image file on your SD card is fragmented it can impact the performance.

You will see a warning:

 - file is fragmented, see https://github.com/erichelgeson/BlueSCSI/wiki/Image-File-Fragmentation

which leads you to this page.

Solution

• Copy all files off your SD Card.
• Delete all files off the SD card or do a Full format of ExFat
• Copy all the files over to your SD Card one at a time.
• The files should no longer be fragmented on the SD card.

Technical details

https://github.com/greiman/SdFat/issues/256#issuecomment-778795554