2 easy methods to extendshrink resize primary partition in Linux

The procedure to extend an extended or logical partition with fdisk starts with deleting both partitions. Then, we recreate the partition with the desired endpoint.

一般linux各发行版都自带fdisk，而parted都需要另外安装。 对于分区扩容这个操作，parted用起来会让人简单 & 放心，因为它是直接resizepart，而fdisk是先删除旧分区再建新分区，虽然两种操作都是变更分区表信息、都不会丢失数据，但fdisk那种删旧建新的过程 ...

Refer to the following sections of our Red Hat Enterprise Linux (RHEL) documentation on how to resize a partition. Resizing partitions is documented in the Storage Guides for Red Hat Enterprise Linux (RHEL).

最近 Hyper-V 里面虚拟机的硬盘容量不够用了，便在管理器里直接修改虚拟硬盘的大小，但是进去虚拟机查看并没有生效，网上查了下，还需要手动修改分区大小，这里用的是 fdisk 命令，从 50G 扩展到 200G。 记得操作前先设置一下检查点，以便恢复快照。

I need to increase the partition using the empty space located before the partition starts without data loss. As far as I know to resize the partition and to leave data intact one should start the new partition from the same disk sector as before.

It is important that you backup your content before you attempt to change size of partition. You can change size of partition (non-lvm) only on the last partition on the storage device with unallocated space.

文章介绍了如何在Linux环境中，通过fdisk命令删除并重建root分区，再用resize2fs命令扩容分区，以解决Linux镜像root分区大小限制的问题。