# 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 >> >> _______________________________________________ >> Arm-dev mailing list >> Arm-dev at centos.org >> https://lists.centos.org/mailman/listinfo/arm-dev >> > > _______________________________________________ > Arm-dev mailing list > Arm-dev at centos.org > https://lists.centos.org/mailman/listinfo/arm-dev >