ubuntu 上怎么看SSD 有没有4K对齐？

Question

ubuntu 13.10 64位版本，SSD是 M5S，小白第一次装ubuntu，直接用系统自动缺省的安装了。

Answer 1

 sudo fdisk -lu

    Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *        2048      206847      102400    7  HPFS/NTFS/exFAT
/dev/sda2          206848   125042687    62417920    7  HPFS/NTFS/exFAT

The Start value can be evenly divided by 8 and is 4K aligned, for example, 2048 = 8 × 256, 206848 = 8 × 25856.

In fact, new operating systems are now aligned with 4k by default.