![]() ![]() Then you can copy just your partitions over to the USB drive. So the solution is to shrink the rootfs partition of your microSD card down to a size that’s just a little bit bigger than the amount of used space. If you don’t shrink the rootfs partition, you will end up copying all 64GB over to your external drive, which will take a lot more time to complete and will require that you have at least 65GB of free space. What’s particularly frustrating is that, by default, the dd file copy process makes an image out of ALL the space on your microSD card, even the unused space.For example, you might have a 64GB microSD card, but only be actually using 6GB of space. img.gz file you create in the tutorial above should be much smaller than your source card, you still need enough space to accommodate the uncompressed. If you want to make a disk image of a microSD card, but don’t have an external USB drive of a greater capacity, you have a problem. How to Shrink a Partition on Raspberry Pi You can copy this file to your PC, upload it to the cloud or send it to a friend. This process will also take several minutes but, when it is done, you will end up with a reasonably sized image file called. sudo dd if=/dev/mmcblk0 of=/myimg.img bs=1M count=7000 The amount of data is equal to count * block size (bs) so 7000 * 1M means 7GB. So, to be on the safe side (better to copy too much data than too little), we rounded up and set dd to copy 7GB of data by using count=7000. For example, in our case, we had had a 16GB card, but after shrinking the rootfs down to 6.5GB, the card only had about 6.8GB in use (when you count the /boot partition). However, if you shrank a partition on the source microSD card, you’ll need to use the count attribute to tell it to copy only as many MBs as are in use. sudo dd if=/dev/mmcblk0 of=/myimg.img bs=1M Copy all your data to an img file by using the dd command. However, you can’t and shouldn’t do that if it’s already mounted.ĥ. If your drive isn’t mounted, try rebooting with the USB drive connected or you can mount it manually by typing sudo mkdir /dev/mysub to create a directory and sudo mount /dev/sda1 /dev/myusb to mount it. Your USB drive will probably be mounted at /media/pi/. The system automatically deletes the resource when its process terminates, however, calling the appropriate function saves memory and decreases the size of the process's working set.You’ll see a list of drives connected to the Raspberry Pi and the mount point name of each. When you are finished using the resource, you can release its associated memory by calling one of the functions in the following table. To get extended error information, call GetLastError. If the function fails, the return value is NULL. If the function succeeds, the return value is the handle to the newly created image. If the resource contains multiple images, the function uses the size of the first image. ![]() If this flag is not specified and cxDesired and cyDesired are set to zero, the function uses the actual resource size. Uses the width or height specified by the system metric values for cursors or icons, if the cxDesired or cyDesired values are set to zero. This flag is only valid if uType is IMAGE_BITMAP. Otherwise, the bitmap image is created as a device-dependent bitmap. ![]() If this is set and a new bitmap is created, the bitmap is created as a DIB section. If this flag is not specified, a new object is always created. Returns the original hImage if it satisfies the criteria for the copy-that is, correct dimensions and color depth-in which case the LR_COPYDELETEORG flag is ignored. This will succeed only if hImage was loaded by LoadIcon or LoadCursor, or by LoadImage with the LR_SHARED flag. If this flag is set, CopyImage uses the size in the resource file closest to the desired size. Without this flag, CopyImage stretches the original image to the new size. This is useful for creating a different-sized copy when the resource file contains multiple sizes of the resource. Tries to reload an icon or cursor resource from the original resource file rather than simply copying the current image. Valueĭeletes the original image after creating the copy. This parameter can be one or more of the following values. If this is zero, then the returned image will have the same height as the original hImage. The desired height, in pixels, of the image. If this is zero, then the returned image will have the same width as the original hImage. The desired width, in pixels, of the image. This parameter can be one of the following values. parameters -param h Ī handle to the image to be copied. If necessary, the function stretches the bits to fit the desired size of the new image. Ext-ms-win-ntuser-gui-l1-3-0 (introduced in Windows 10, version 0)Ĭreates a new image (icon, cursor, or bitmap) and copies the attributes of the specified image to the new one. ![]()
0 Comments
Leave a Reply. |