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SD card size question

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How I automate the slaughter of the Official Raspberry Pi's Debian-based OS to create reliable headless, embedded systems

Yann Guidon / YGDESYann Guidon / YGDES 09/28/2015 at 23:501 Comment

The current Raspbian image takes 3GB and contains about 2GB of data (compressed down to 1GB of archive). This means that a 4GB card is necessary. It's today's standard size but can it be cheaper with a smaller image ?

I managed to squeeze Raspbian down to about 520MB so a 2GB SD card is possible. But I will have to shrink the ext4 fs instead of expanding it. Who needs to fit in 2GB? Does it make sense economically? What about older systems?


OK, I have one argument for the reduction : it saves time when writing the image to the flash card so I'll see how to reduce the partition's size to about 1GB...

Discussions

Hacker404 wrote 10/04/2015 at 04:18 point

A 2GB card is 'SD' and a 4GB card is 'SDHC' so the smaller image would be compatible with older readers / card slots. I still have a laptop here that is 'SD' only. 

Also 'SD' was by default FAT16 although you could easily format it FAT32. 'SDHC' is FAT32. 

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