linux系统扩展磁盘容量
1、查看当前磁盘
xxx@xxx:~$ sudo fdisk -l
Disk /dev/loop0: 63.45 MiB, 66531328 bytes, 129944 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
....
Device Start End Sectors Size Type
/dev/sda1 2048 4095 2048 1M BIOS boot
/dev/sda2 4096 3719167 3715072 1.8G Linux filesystem
/dev/sda3 3719168 41940991 38221824 18.2G Linux filesyst