On 16 January 2016 04:50:49 CET, [email protected] wrote: >Hi, > >to post a firmware image of my embedded linux computer >to a friend I want to size it down. > >System wise I did that already (only the really necessary >stuff of Gentoo plus some configuration and addons related >to the embedded system)...the problem comes with the size of >the microSDcard I use: 32 GB.... > >The microSDcard (source) has two partitions (boot + the rest). >The boot partition is the first partition and it is of a fixed >and tiny size. The second partition contains the "rest": Gentoo. >Currently the used space of this partition is also small. > >The image needs to be of a format, which makes >it possble to 'dd' it onto a microSDcard (target) and afterwards use >g/parted to resize/expand the second partition to the end >of the microSDcard to get all storage space available. > >If I dd the source into an image I get all those zeroes also and >the image only will fit onto a microSDcard (target) of at least >the same size. > >If I dd each partition separately I get two files and the partition >table is not copied...may be technically possible but not user >friendly. > >How can I manage to get an image from my microSDcard (source), which >only consists of the used space in a way that it can be put onto >another microSDcard (target) in the waay described above? > >How can I acchieve that magic ? ;) :) > >Thank you very much in advance for any help! >Best regards, >Meino
I would create a script that partitions and formats the sdcard. Then untar the contents of the partitions Then set up the bootloader. This should lead to a small size which is also user friendly. -- Joost -- Sent from my Android device with K-9 Mail. Please excuse my brevity.
