It won't work the other way round though...rocketero wrote:sure sounds easy, had not tried yet, but I will!
Now, let's say that the SDHC card is 16GB, I take the image and store it in a PC. Then I want to use a 32GB SDHC card to place that image, will it work?
It will work. You will only see 16GB of the 32GB card though. I think there are instructions on the Wiki for extending the 2GB images; the same would apply to extending a 16GB image to 32GB.rocketero wrote:Now, let's say that the SDHC card is 16GB, I take the image and store it in a PC. Then I want to use a 32GB SDHC card to place that image, will it work?
dd does a bit for bit copy of the sdcard, including free space.rocketero wrote:OK, I did a backup of the 32 GB sdcard, it took hours to do it and the final image is 32 GB in size even that only 4 or 5 GB are used so far. why is this way? I thought I was going to have a compressed image or something.
Correct - you have a direct image of the 32GB card which is 32GB. Use zip or similar to compress it. Should be smaller than 5GB unless you have really filled up the card.rocketero wrote:I didn't use dd, I used win32diskimager in Windows 7 (I took the sdcard out of RPI and use an usb adapter to plug it to the PC).
The image is called rpi-wheezy.img, it's 32 gb in size. Using 7zip I could compress it in bzip2 (bz2) format, and final size would be like 5gb to 10gb??, still big but not as big as 32gb.
Hidfreder1 wrote:Ugh, trying to use win32diskimager to read my working RPi SD card as a backup. Everything goes well until the 58% finished point when this error pops up "An error occurred when attempting to read from handle. Error1117: The request could not be performed because of an I/O device error."
I've tried running win32diskimager as admin, and, as one forum suggested, closed all open windows.
Any ideas for those of us with Windows 7 as our "regular computer" (other than get a spare Linux machine - which I'm considering!)
(Kingston 8Gb Class 10 SD, win32diskimager just downloaded so latest version, Windows 7)
I use HDD Raw Copy Tool, its images are compressed.rocketero wrote:OK, I did a backup of the 32 GB sdcard, it took hours to do it and the final image is 32 GB in size even that only 4 or 5 GB are used so far. why is this way? I thought I was going to have a compressed image or something.
Just because it mentions it doesn't mean it's the right one.dfreder1 wrote:When I pop in an SD card the OS puts up a msg with a bunch of stuff including sdc, sdd, etc. I verified it by checking the dev directory. So I think I have that part right.