Backup SD card image larger than the SD card??

[chezbot]

So I have a fully working retropie setup and I am loving it! However I would like to repurpose my 32gb class 10 Sandisk SD card for something else for the time being so I have decided to try backing it up into an image file. I am using Mac OS X Lion’s DD command to do the backup but the image it’s created is far larger than the card itself (60+gigs) meaning I don’t think I’ll be able to write it back to the same card at a later date.

The card is almost completely full of ROMS down to the last gig. I don’t know how this is possible! Does anyone know what I am doing wrong or what could be the cause of such a strange issue?

[InsecureSpike]

try this out,
http://www.tweaking4all.com/hardware/raspberry-pi/macosx-apple-pi-baker/

Sent from my iPhone using Tapatalk

[chezbot]

I will give the PiBaker app a try. However I have the feeling that it just uses dd as a backend which may give me the same problems. I’ll post back here after I try it.

[InsecureSpike]

yup possibly, but if you get the same results, you know alls ok?

Sent from my iPhone using Tapatalk

[InsecureSpike]

double post, stupid Tapatalk

[gizmo98]

I backup my sd under mavericks with this command:
sudo dd bs=1m if=/dev/rdisk# of=<your image file>.img

Had no problem until now.

[Author]

Posts