Ubuntu添加硬盘

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最近做ROS的项目，顺带把linux下的命令玩溜了些，暂且做个记录。这一篇作者是gyf https://gist.github.com/gaoyifan/019ad7766f030ab5be50

查看硬盘：

# fdisk -l...Disk /dev/sdb: 274.9 GB, 274877906944 bytes255 heads, 63 sectors/track, 33418 cylinders, total     536870912 sectorsUnits = sectors of 1 * 512 = 512 bytesSector size (logical/physical): 512 bytes / 512 bytesI/O size (minimum/optimal): 512 bytes / 512 bytesDisk identifier: 0x00000000Disk /dev/sdb doesn't contain a valid partition table

可以看到，有一块大小为256G的磁盘未初始化

格式化硬盘（如果需要多个分区，请先创建磁盘分区）：

# mkfs.ext4 /dev/sdbmke2fs 1.42.9 (4-Feb-2014)/dev/sdb is entire device, not just one partition!Proceed anyway? (y,n) yFilesystem label=OS type: LinuxBlock size=4096 (log=2)Fragment size=4096 (log=2)Stride=0 blocks, Stripe width=0 blocks16777216 inodes, 67108864 blocks3355443 blocks (5.00%) reserved for the super userFirst data block=0Maximum filesystem blocks=42949672962048 block groups32768 blocks per group, 32768 fragments per group8192 inodes per groupSuperblock backups stored on blocks:    32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,    4096000, 7962624, 11239424, 20480000, 23887872Allocating group tables: doneWriting inode tables: doneCreating journal (32768 blocks): doneWriting superblocks and filesystem accounting information: done

查看磁盘的UUID：

# blkid/dev/sda1: UUID="05003145-9b91-4943-aaa8-22cb496fd4d8" TYPE="ext4"/dev/sda5: UUID="ca0012ba-2bf1-4d0b-94d3-3e4043746a14" TYPE="swap"/dev/sdb: UUID="e23a1c1e-8d91-4df8-8fba-f0656a1080ab" TYPE="ext4"

记录下/dev/sdb（刚才格式化的分区）的UUID。

注意：你看到的UUID的值与例子不同

编辑/etc/fstab

# editor /etc/fstab

添加以下行

UUID=e23a1c1e-8d91-4df8-8fba-f0656a1080ab   /home   ext4    defaults,errors=remount-ro  0   1

注意：UUID替换为上一步你获取到的值

P.S./home为你要挂载的目标目录

现在重启电脑，应用新的磁盘配置

# reboot

查看磁盘配置：

# df -hFilesystem      Size  Used Avail Use% Mounted on/dev/sda1       8.8G  1.3G  7.1G  15% /none            4.0K     0  4.0K   0% /sys/fs/cgroupudev            8.2G  4.0K  8.2G   1% /devtmpfs           1.7G  492K  1.7G   1% /runnone            5.0M  8.0K  5.0M   1% /run/locknone            8.2G     0  8.2G   0% /run/shmnone            100M     0  100M   0% /run/user/dev/sdb        252G   60M  239G   1% /home

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