Revisions to Extend a LUKS encrypted partition to fill disk

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edited Dec 21, 2022 at 7:28

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For those that come to the answer to find out how to simply resize a LUKS partition to the size of the resized container, the commands are as follows:

with LUKS encrypted volume opened and the opened volume mapped as opened-volume, execute
```
sudo cryptsetup resize /dev/mapper/opened-volume
```
to resize the LUKS encrypted volume online...
then resize the file system. E.gcontents. if it is an Ext4 filesystem, you can resize it even if it is mounted with
```
sudo resize2fs /dev/mapper/opened-volume
```
- E.g. if it is an Ext4 filesystem, you can resize it even if it is mounted with
```
sudo resize2fs /dev/mapper/opened-volume
```
- Or if you had a LVM physical volume inside the LUKS encrypted volume, just use pvresize:
```
sudo pvresize /dev/mapper/opened-volume
```

I did both commandsI've done this with a mounted file system/activated PV with no interruption; it was possible to resize the container without unmounting it first because the encrypted volume was on a LVM logical volume (using lvresize) / using parted to resize a GPT partition to contain the free space that immediately followed it!

For those that come to the answer to find out how to simply resize a LUKS partition to the size of the resized container, the commands are as follows:

with LUKS encrypted volume opened and the opened volume mapped as opened-volume, execute
```
sudo cryptsetup resize /dev/mapper/opened-volume
```
then resize the file system. E.g. if it is an Ext4 filesystem, you can resize it even if it is mounted with
```
sudo resize2fs /dev/mapper/opened-volume
```

I did both commands with a mounted file system with no interruption; it was possible to resize the container without unmounting it first because the encrypted volume was on a LVM logical volume (using lvresize)!

For those that come to the answer to find out how to simply resize a LUKS partition to the size of the resized container, the commands are as follows:

with LUKS encrypted volume opened and the opened volume mapped as opened-volume, execute
```
sudo cryptsetup resize /dev/mapper/opened-volume
```
to resize the LUKS encrypted volume online...
then resize the contents.
- E.g. if it is an Ext4 filesystem, you can resize it even if it is mounted with
```
sudo resize2fs /dev/mapper/opened-volume
```
- Or if you had a LVM physical volume inside the LUKS encrypted volume, just use pvresize:
```
sudo pvresize /dev/mapper/opened-volume
```

I've done this with a mounted file system/activated PV with no interruption; it was possible to resize the container without unmounting it first because the encrypted volume was on a LVM logical volume (using lvresize) / using parted to resize a GPT partition to contain the free space that immediately followed it!

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edited Sep 13, 2021 at 22:55

Antti Haapala

1.2k
10
11

For those that come to the answer to find out how to simply resize a LUKS partition to the size of the resized container, the commands are as follows:

with LUKS encrypted volume opened and the opened volume mapped as opened-volume, execute

sudo cryptsetup resize /dev/mapper/opened-volume
```
sudo cryptsetup resize /dev/mapper/opened-volume
```
then resize the file system. IfE.g. if it is Ext4an Ext4 filesystem, you can resize ait even if it is mounted file systemwith

sudo resize2fs /dev/mapper/opened-volume
```
sudo resize2fs /dev/mapper/opened-volume
```

I did both commands with a mounted file system with no interruption; it was possible to resize the container without unmounting it first because the encrypted volume was on a LVM logical volume (using lvresize)!

For those that come to the answer to find out how to simply resize a LUKS partition to the size of the resized container, the commands are as follows:

with LUKS encrypted volume opened and the opened volume mapped as opened-volume, execute

sudo cryptsetup resize /dev/mapper/opened-volume
then resize the file system. If it is Ext4, you can resize a mounted file system

sudo resize2fs /dev/mapper/opened-volume

I did both commands with a mounted file system with no interruption; it was possible to resize the container without unmounting it first because the encrypted volume was on a LVM logical volume (using lvresize)!

For those that come to the answer to find out how to simply resize a LUKS partition to the size of the resized container, the commands are as follows:

with LUKS encrypted volume opened and the opened volume mapped as opened-volume, execute
```
sudo cryptsetup resize /dev/mapper/opened-volume
```
then resize the file system. E.g. if it is an Ext4 filesystem, you can resize it even if it is mounted with
```
sudo resize2fs /dev/mapper/opened-volume
```

I did both commands with a mounted file system with no interruption; it was possible to resize the container without unmounting it first because the encrypted volume was on a LVM logical volume (using lvresize)!

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edited Jan 6, 2020 at 17:04

Antti Haapala

1.2k
10
11

For those that come to the answer to find out how to simply resize a LUKS partition to the size of the resized container, the commands are as follows:

with LUKS encrypted volume opened and the opened crypt volume mapped toas cryptopened-volume, execute

sudo cryptsetup resize /dev/mapper/cryptopened-volume
then resize the file system. If it is Ext4, you can resize a mounted file system

sudo resize2fs /dev/mapper/cryptopened-volume

I did both commands with a mounted file system with no interruption, thisinterruption; it was possible to resize the container without unmounting it first because the encrypted volume was on a LVM logical volume. (using lvresize)!

For those that come to the answer to find out how to simply resize a LUKS partition to the size of the resized container, the commands are as follows:

with opened crypt volume mapped to crypt-volume, execute

sudo cryptsetup resize /dev/mapper/crypt-volume
then resize the file system. If it is Ext4, you can resize a mounted file system

sudo resize2fs /dev/mapper/crypt-volume

I did both commands with a mounted file system with no interruption, this was possible because the encrypted volume was a LVM volume.

For those that come to the answer to find out how to simply resize a LUKS partition to the size of the resized container, the commands are as follows:

with LUKS encrypted volume opened and the opened volume mapped as opened-volume, execute

sudo cryptsetup resize /dev/mapper/opened-volume
then resize the file system. If it is Ext4, you can resize a mounted file system

sudo resize2fs /dev/mapper/opened-volume

I did both commands with a mounted file system with no interruption; it was possible to resize the container without unmounting it first because the encrypted volume was on a LVM logical volume (using lvresize)!

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answered Oct 23, 2019 at 12:11

Antti Haapala

1.2k
10
11

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