阿里云ecs磁盘扩容
阿里云磁盘通过控制台扩容后由40G扩容到60G后，发现磁盘空间增加了但是分区还是40G，如何把让当前的vda1分区变成60G。
fdisk -l Disk /dev/vda: 64.4 GB, 64424509440 bytes, 125829120 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: 0x000b2d99 Device Boot Start End Blocks Id System /dev/vda1 * 2048 83875364 41936658+ 83 Linux lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT vda 253:0 0 60G 0 disk └─vda1 253:1 0 40G 0 part /
1.扩容块：使用root登陆服务器执行下面命令
type growpart || yum install -y cloud-utils-growpart LC_ALL=en_US.UTF-8 growpart /dev/vda 1
CHANGED: partition=1 start=2048 old: size=83873317 end=83875365 new: size=125819032,end=125821080
2.扩容文件系统
blkid /dev/vda1: UUID="1114fe9e-2309-4580-b183-d778e6d97397" TYPE="ext4"
通过上面命令查询出来文件系统是ext4的，然后执行下面命令扩容。
resize2fs /dev/vda1
resize2fs 1.42.9 (28-Dec-2013) Filesystem at /dev/vda1 is mounted on /; on-line resizing required old_desc_blocks = 3, new_desc_blocks = 4 The filesystem on /dev/vda1 is now 15727379 blocks long.
最后在执行lsblk这个命令查看结果。
lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT vda 253:0 0 60G 0 disk └─vda1 253:1 0 60G 0 part /
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