4k对齐是windows的事情，linux不用管他

[zzz@kkk ~]$sudo  fdisk -lu /dev/sda

Disk /dev/sda: 107.4 GB, 107374182400 bytes
16 heads, 63 sectors/track, 208050 cylinders, total 209715200 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 identifier: 0x5ce7c164

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1         2063376   209714399   103825512    5  Extended
/dev/sda2         2063439   209714399   103825480+  83  Linux

start开始的扇区能不能被8整除，不能就表示没有4k对齐了,如果能整除就说明4k对其了。

现在的分区工具一般都自动对齐了

一般来说 使用硬盘的字节数 / 4096. 如果是整数 就代表对齐了。

Deepin 20.2.4 上的 fdisk 的文档中可以看到，按它的默认操作都是4K 对齐了的。

man fdisk:

All partitioning is driven by device I/O limits (the topology) by default. fdisk is able to optimize the disk layout for a 4K-sector size and use an alignment offset on modern devices for MBR and GPT. It is always a good idea to follow fdisk's defaults as the default values (e.g. first and last partition sectors) and partition sizes specified by the +/-

{M,G,...} notation are always aligned according to the device properties.