阿里云磁盘扩容操作
购买磁盘扩容服务后，宝塔后台并没有显示扩容后的容量
①#运行fdisk -l命令查看磁盘实际大小
[root@izbp1521sz2xqeu1byoy4mz /]# fdisk -l #运行fdisk -l命令查看磁盘实际大小 Disk /dev/vda: 536.9 GB, 536870912000 bytes, 1048576000 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 label type: dos Disk identifier: 0x000d2717 Device Boot Start End Blocks Id System /dev/vda1 * 2048 41943039 20970496 83 Linux |
②df -h #磁盘分配大小
[root@izbp1521sz2xqeu1byoy4mz /]# df -h #磁盘分配大小 Filesystem Size Used Avail Use% Mounted on /dev/vda1 20G 3.9G 15G 22% / devtmpfs 3.7G 0 3.7G 0% /dev tmpfs 3.7G 0 3.7G 0% /dev/shm tmpfs 3.7G 396K 3.7G 1% /run tmpfs 3.7G 0 3.7G 0% /sys/fs/cgroup tmpfs 756M 0 756M 0% /run/user/0 |
③安装growpart
[root@izbp1521sz2xqeu1byoy4mz /]# yum install -y cloud-utils-growpart Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile Resolving Dependencies --> Running transaction check ---> Package cloud-utils-growpart.noarch 0:0.29-5.el7 will be installed --> Finished Dependency Resolution Dependencies Resolved ============================================================================================================================================================================================= Package Arch Version Repository Size ============================================================================================================================================================================================= Installing: cloud-utils-growpart noarch 0.29-5.el7 base 27 k Transaction Summary ============================================================================================================================================================================================= Install 1 Package Total download size: 27 k Installed size: 61 k Downloading packages: cloud-utils-growpart-0.29-5.el7.noarch.rpm | 27 kB 00:00:00 Running transaction check Running transaction test Transaction test succeeded Running transaction Warning: RPMDB altered outside of yum. Installing : cloud-utils-growpart-0.29-5.el7.noarch 1/1 Verifying : cloud-utils-growpart-0.29-5.el7.noarch 1/1 Installed: cloud-utils-growpart.noarch 0:0.29-5.el7 Complete! |
④/dev/vda 第一分区扩容
[root@izbp1521sz2xqeu1byoy4mz /]# growpart /dev/vda 1 CHANGED: partition=1 start=2048 old: size=41940992 end=41943040 new: size=1048573919 end=1048575967 |
⑤运行resize2fs
[root@izbp1521sz2xqeu1byoy4mz /]# resize2fs /dev/vda1 resize2fs 1.42.9 (28-Dec-2013) Filesystem at /dev/vda1 is mounted on /; on-line resizing required old_desc_blocks = 2, new_desc_blocks = 32 The filesystem on /dev/vda1 is now 131071739 blocks long. |
最后查看磁盘大小
[root@izbp1521sz2xqeu1byoy4mz /]# df -h Filesystem Size Used Avail Use% Mounted on /dev/vda1 493G 4.0G 468G 1% / devtmpfs 3.7G 0 3.7G 0% /dev tmpfs 3.7G 0 3.7G 0% /dev/shm tmpfs 3.7G 404K 3.7G 1% /run tmpfs 3.7G 0 3.7G 0% /sys/fs/cgroup tmpfs 756M 0 756M 0% /run/user/0 |
参考 https://www.jianshu.com/p/7a6e95e3b319