Preface: I am very familiar with gParted, parted, fdisk; Windows system.
I wanted to increase the size on a Ubuntu 14.04 disk, virtualized through ESXi 5.5 and disk connected as "Independent, Persistent".
I resized->increased in the past this disk already, using gParted Live, easy.
Now I wish to keep the Server ON while proceeding to resize it, this is a backup disk and it is only used during the week-end. I can easily unmount it from the system.
I know already how to proceed but I searched for tutorials and explicit commands in order for me to not forget anything.
The question: After Googling it and read several pages of how-to, I discovered that everybody tells that the partition must be deleted first, before resizing it.
I can not understand why one must delete the partition, in CLI, before resizing it. Windows too allows a partition to be resized without previous deleting it.
..And the I read this: https://unix.stackexchange.com/questions/169395/how-do-i-resize-partitions-and-filesystems-on-them And I do not understand why this answer doesn't say about deleting the partition first.
For me, this last answer is right: there is not need to delete the partition:
$ sudo parted /dev/sdb resizepart 1 400M $ sudo resize2fs /dev/sdb1 400M
Can someone tell me more about why some say of deleting the partition?