# dd if=/dev/sdb of=cubietruck.img bs=512 count=6268927
6268927+0 records in 6268927+0 records out 3209690624 bytes (3.2 GB, 3.0 GiB) copied, 114.435 s, 28.0 MB/s
So now I have a checkpoint image of my server setup.
On 03/02/2017 05:39 PM, Robert Moskowitz wrote:
I looked at output from writing the image:
sudo dd of=/dev/sdb bs=4M; sync 0+346813 records in 0+346813 records out 3221225472 bytes (3.2 GB, 3.0 GiB) copied, 147.907 s, 21.8 MB/s
Would this be what I want:
dd if=/dev/sdb of=cubietruck.img bs=4M count=346813
On 03/02/2017 04:33 PM, Robert Moskowitz wrote:
Can I have a little help making an image via dd, and then compressing it?
I want to save 'checkpoints' of my build process, so that when I have to go back, I do not have to go all the way back to the base image.
I have built my basic image (I will be updating my howto, found a few bugs), and fdisk reports:
Disk /dev/sda: 120.0 GB, 120034124288 bytes, 234441649 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk label type: dos Disk identifier: 0x0000c89d
Device Boot Start End Blocks Id System /dev/sda1 2048 1026047 512000 83 Linux /dev/sda2 1026048 2074623 524288 82 Linux swap / Solaris /dev/sda3 2074624 6268927 2097152 83 Linux
Obviously, I do not want to dd the whole 120GB, as I am still only using 4GB, though I will probably have to enlarge sda3 a bit to hold all the software I need. I did this a couple years back, but can't find my notes. :(
thanks
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