电脑一般会装两块硬盘,一块SSD,一块机械硬盘,安装Ubuntu系统之后就涉及了分区的操作,这里做一些简单记录
➜ Downloads >sudo fdisk -l
Disk /dev/sda: 238.5 GiB, 256060514304 bytes, 500118192 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
Disklabel type: dos
Disk identifier: 0x5fed11c2
Disk /dev/sdb: 465.8 GiB, 500107862016 bytes, 976773168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: dos
Disk identifier: 0x8d22df8d
Device Boot Start End Sectors Size Id Type
/dev/sdb1 2048 512002047 512000000 244.1G 7 HPFS/NTFS/exFAT
/dev/sdb2 512002048 976769023 464766976 221.6G 7 HPFS/NTFS/exFAT
Disk /dev/mapper/ubuntu--vg-root: 230.3 GiB, 247245832192 bytes, 482902016 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
可以看到/dev/sda 和 /dev/sdb 两个设备节点,其中/dev/sda对应的固态硬盘,/dev/sdb对应的机械硬盘
#mkfs.ext4 /dev/sdb2 //注:将/dev/sdb2格式化为ext4类型
mount /dev/sdb2 ~/Code
df -h
因为mount挂载在重启服务器后会失效,所以需要将分区信息写到/etc/fstab文件中让它永久挂载:
/dev/sdb2(磁盘分区) /Code(挂载目录) ext4(文件格式)defaults 0 0
chgrp:更改文件属组
chown:更改文件属主,也可以同时更改文件属组