meteohub.de

Hello! I'm setting up MeteoHub on a NSLU2 to try it out with my weatherstation. I initially put the disk image on a 32 Gb USB Thumb Drive but realized that this is a waste of a huge thumb drive so I went out and bought a 4 Gb USB Thumb Drive. I would like to reformat my 32 Gb Thumb Drive so I can use it with my PC again but XP only recognizes 415 Mb of the 32 Gb. Can someone tell me how I can restore this? Thanks in advance!

Meteohub image is a raw disk image that also comes with a partition table. Windows PCs just see first partition which is about 500 MB.

You need to do a repartitioning of the SD card. You can force Windows to do that by doing a low level write of zeros to the first sectors of the raw SD card. This will destroy the partition table and Windows will build a new one when doing format on this.

To do low-level write you can use "dd" with taking /dev/zero as input device or "diskimage" in physical disk mode and applying a file with a few MB of zeros in it. Please watch out that you don't do that with your PC's disk as target drive!

Thanks for the information! For those that are on XP and don't want to get too deep in this, there is a program called LLFsetup.2.36.1181.exe that provides a nice GUI and will do a low level format too.