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aligning partition boundaries of already installed system

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linux-howto

http://serverfault.com – I have qemu raw disk which includes two partitions. The second partition is not aligned according to ssd principles. I will move this into Smartcloud environment and they suggest aligning according to 4k boundaries. How can I change starting cylinder to a multiple of 8 without reinstalling and on easiest way? Disk /dev/sda: 103.0 GB, 103080263680 bytes 255 heads, 63 sectors/track, 12532 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sda1 * 1 25 200781 83 Linux /dev/sda2 (HowTos)