8.6. Deleting or Changing a Partition

Once a partition has been created, its size or position on the hard disk cannot be changed using Webmin. The only things you can do are change its type or delete it. Neither are possible, however, if a filesystem on the partition is listed in the Disk and Network Filesystems module—that is, if it is currently mounted or recorded for mounting at boot time.

Changing the type of a partition will not harm the data on it in any way. It may, however, make it unusable by some operating systems or for some purposes.

The steps to change its type are:

1.
On the main page of the module, click on the number of the partition that you want to change. This will take you to the partition editing form.

2.
As long as the partition is not in use, you will be able to select a new type from the Type field and click the Save button.

3.
Once the change has been made, the browser will return to the list of disks and partitions.

Deleting a partition should be done only if you are sure that you want to lose all the data on it. It is the only way to make some changes to the partition table in Webmin, however, such as replacing two small partitions with one larger one. If you are sure that you want to go ahead with the deletion, use the following process:

1.
On the main page of the module, click on the number of the partition that you want to delete, which will take you to the partition editing form.

2.
Click the Delete button, which will only appear if the partition is not in use. This will take you to a page for confirming the deletion.

3.
If you are really sure you want to go ahead, click the Delete Now button. Once the job is done, you will be returned to the main page of the module.

It is theoretically possible to restore a deleted partition by creating a new one with the exact same size and extents.

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