VMware 磁盘不足，扩展磁盘后如何挂载磁盘，教程如下
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[root@bogon ~]# fdisk -l 磁盘 /dev/sda：59.1 GB, 59055800320 字节，115343360 个扇区 Units = 扇区 of 1 * 512 = 512 bytes 扇区大小(逻辑/物理)：512 字节 / 512 字节 I/O 大小(最小/最佳)：512 字节 / 512 字节 磁盘标签类型：dos 磁盘标识符：0x000a13d5 设备 Boot Start End Blocks Id System /dev/sda1 * 2048 2099199 1048576 83 Linux /dev/sda2 2099200 41943039 19921920 8e Linux LVM 磁盘 /dev/mapper/centos_bogon-root：18.2 GB, 18249416704 字节，35643392 个扇区 Units = 扇区 of 1 * 512 = 512 bytes 扇区大小(逻辑/物理)：512 字节 / 512 字节 I/O 大小(最小/最佳)：512 字节 / 512 字节 磁盘 /dev/mapper/centos_bogon-swap：2147 MB, 2147483648 字节，4194304 个扇区 Units = 扇区 of 1 * 512 = 512 bytes 扇区大小(逻辑/物理)：512 字节 / 512 字节 I/O 大小(最小/最佳)：512 字节 / 512 字节 [root@bogon ~]# fdisk /dev/sda 欢迎使用 fdisk (util-linux 2.23.2)。 更改将停留在内存中，直到您决定将更改写入磁盘。 使用写入命令前请三思。 命令(输入 m 获取帮助)：m 命令操作 a toggle a bootable flag b edit bsd disklabel c toggle the dos compatibility flag d delete a partition g create a new empty GPT partition table G create an IRIX (SGI) partition table l list known partition types m print this menu n add a new partition o create a new empty DOS partition table p print the partition table q quit without saving changes s create a new empty Sun disklabel t change a partition's system id u change display/entry units v verify the partition table w write table to disk and exit x extra functionality (experts only) 命令(输入 m 获取帮助)：n Partition type: p primary (2 primary, 0 extended, 2 free) e extended Select (default p): p 分区号 (3,4，默认 3)：[Enter] 起始 扇区 (41943040-115343359，默认为 41943040)：[Enter] 将使用默认值 41943040 Last 扇区, +扇区 or +size{K,M,G} (41943040-115343359，默认为 115343359)：+13G 分区 3 已设置为 Linux 类型，大小设为 13 GiB 命令(输入 m 获取帮助)：w The partition table has been altered! Calling ioctl() to re-read partition table. WARNING: Re-reading the partition table failed with error 16: 设备或资源忙. The kernel still uses the old table. The new table will be used at the next reboot or after you run partprobe(8) or kpartx(8) 正在同步磁盘。 [root@bogon ~]# fdisk -l 磁盘 /dev/sda：59.1 GB, 59055800320 字节，115343360 个扇区 Units = 扇区 of 1 * 512 = 512 bytes 扇区大小(逻辑/物理)：512 字节 / 512 字节 I/O 大小(最小/最佳)：512 字节 / 512 字节 磁盘标签类型：dos 磁盘标识符：0x000a13d5 设备 Boot Start End Blocks Id System /dev/sda1 * 2048 2099199 1048576 83 Linux /dev/sda2 2099200 41943039 19921920 8e Linux LVM /dev/sda3 41943040 69206015 13631488 83 Linux 磁盘 /dev/mapper/centos_bogon-root：18.2 GB, 18249416704 字节，35643392 个扇区 Units = 扇区 of 1 * 512 = 512 bytes 扇区大小(逻辑/物理)：512 字节 / 512 字节 I/O 大小(最小/最佳)：512 字节 / 512 字节 磁盘 /dev/mapper/centos_bogon-swap：2147 MB, 2147483648 字节，4194304 个扇区 Units = 扇区 of 1 * 512 = 512 bytes 扇区大小(逻辑/物理)：512 字节 / 512 字节 I/O 大小(最小/最佳)：512 字节 / 512 字节 [root@bogon ~]# mkfs.ext4 /dev/sda3 mke2fs 1.42.9 (28-Dec-2013) 无法对 /dev/sda3 进行 stat 调用 --- 没有那个文件或目录 The device apparently does not exist; did you specify it correctly? [root@bogon ~]# partprobe Warning: 无法以读写方式打开 /dev/sr0 (只读文件系统)。/dev/sr0 已按照只读方式打开。 [root@bogon ~]# mkfs.ext4 /dev/sda3 mke2fs 1.42.9 (28-Dec-2013) 文件系统标签= OS type: Linux 块大小=4096 (log=2) 分块大小=4096 (log=2) Stride=0 blocks, Stripe width=0 blocks 851968 inodes, 3407872 blocks 0393 blocks (5.00%) reserved for the super user ▽ 一个数据块=0 Maximum filesystem blocks=2151677952 104 block groups 32768 blocks per group, 32768 fragments per group 8192 inodes per group Superblock backups stored on blocks: 32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208 Allocating group tables: 完成 正在写入inode表: 完成 Creating journal (32768 blocks): 完成 Writing superblocks and filesystem accounting information: 完成 [root@bogon ~]# vim /etc/fstab # # /etc/fstab # Created by anaconda on Wed Sep 14 13:38:05 2022 # # Accessible filesystems, by reference, are maintained under '/dev/disk' # See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info # /dev/mapper/centos_bogon-root / xfs defaults 0 0 UUID=27637017-1936-451f-93fc-6165a9599a61 /boot xfs defaul ts 0 0 /dev/mapper/centos_bogon-swap swap swap defaults 0 0 /dev/sda3 /disk ext4 defaults 0 0 "/etc/fstab" 12L, 511C 已写入 [root@bogon ~]# mount -a [root@bogon ~]# df -h 文件系统 容量 已用 可用 已用% 挂载点 /dev/mapper/centos_bogon-root 17G 17G 16M 100% / devtmpfs 3.9G 0 3.9G 0% /dev tmpfs 3.9G 8.0K 3.9G 1% /dev/shm tmpfs 3.9G 8.8M 3.9G 1% /run tmpfs 3.9G 0 3.9G 0% /sys/fs/cgroup /dev/sda1 1014M 145M 870M 15% /boot tmpfs 781M 0 781M 0% /run/user/1002 tmpfs 781M 0 781M 0% /run/user/0 /dev/sda3 13G 41M 12G 1% /disk [root@bogon ~]# pvcreate /dev/sda3 Can't open /dev/sda3 exclusively. Mounted filesystem? Can't open /dev/sda3 exclusively. Mounted filesystem? [root@bogon ~]# umount /dev/sda3 [root@bogon ~]# pvcreate /dev/sda3 WARNING: ext4 signature detected on /dev/sda3 at offset 1080. Wipe it? [y/n]: y Wiping ext4 signature on /dev/sda3. Physical volume "/dev/sda3" successfully created. [root@bogon ~]# vgscan Reading volume groups from cache. Found volume group "centos_bogon" using metadata type lvm2 [root@bogon ~]# vgextend centos_bogon /dev/sda3 Volume group "centos_bogon" successfully extended [root@bogon ~]# lvextend -L +12G /dev/mapper/centos_bogon-root Size of logical volume centos_bogon/root changed from <17.00 GiB (4351 extents) to <29.00 GiB (7423 extents). Logical volume centos_bogon/root successfully resized. [root@bogon ~]# xfs_growfs /dev/mapper/centos_bogon-root meta-data=/dev/mapper/centos_bogon-root isize=512 agcount=4, agsize=1113856 blks = sectsz=512 attr=2, projid32bit=1 = crc=1 finobt=0 spinodes=0 data = bsize=4096 blocks=4455424, imaxpct=25 = sunit=0 swidth=0 blks naming =version 2 bsize=4096 ascii-ci=0 ftype=1 log =internal bsize=4096 blocks=2560, version=2 = sectsz=512 sunit=0 blks, lazy-count=1 altime =none extsz=4096 blocks=0, rtextents=0 ▽ata blocks changed from 4455424 to 7601152 [root@bogon ~]# df -h 文件系统 容量 已用 可用 已用% 挂载点 /dev/mapper/centos_bogon-root 29G 17G 13G 59% / devtmpfs 3.9G 0 3.9G 0% /dev tmpfs 3.9G 8.0K 3.9G 1% /dev/shm tmpfs 3.9G 8.8M 3.9G 1% /run tmpfs 3.9G 0 3.9G 0% /sys/fs/cgroup /dev/sda1 1014M 145M 870M 15% /boot tmpfs 781M 0 781M 0% /run/user/1002 tmpfs 781M 0 781M 0% /run/user/0 [root@bogon ~]# vim /etc/fstab # # /etc/fstab # Created by anaconda on Wed Sep 14 13:38:05 2022 # # Accessible filesystems, by reference, are maintained under '/dev/disk' # See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info # /dev/mapper/centos_bogon-root / xfs defaults 0 0 UUID=27637017-1936-451f-93fc-6165a9599a61 /boot xfs defaul ts 0 0 /dev/mapper/centos_bogon-swap swap swap defaults 0 0 ~ "/etc/fstab" 11L, 477C 已写入
