I got an error:

the partition /dev/sda1 assigned to / starts at an offset of 3584 bytes from the minimum alignment for this disk, which may lead to very poor performance.

I want to install Debian on my 500 GB portable hard drive. I allocated 40 GB to /, and the rest is for /home.

  • 1
    Looks like you have a disk with a 4kB physical sector size, and the partition start address is not aligned to a multiple of 4096. 3584 is exactly 512 bytes short of 4096. This can indeed lead to performance problems. For more information, see Advanced Format – Johan Myréen Aug 7 '17 at 7:12
  • @JohanMyréen How to solve it? – Xin Zhang Aug 7 '17 at 7:14
  • 2
    You will need to repartition the disk and choose a starting offset for the partition that is a multiple of 4096 bytes. – Johan Myréen Aug 7 '17 at 7:16
  • Recreate the partition table – GAD3R Aug 7 '17 at 13:27
  • After repartition, It works well. – Xin Zhang Aug 8 '17 at 13:45

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