Extend WSL2

Nov 25, 2024#other53

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When creating a Linux distribution using WSL2, the default space allocated is 1TB, which can fill up quickly. To expand the disk space, follow these steps: **Windows Steps:** 1. Open PowerShell as an administrator and launch Disk Management using `diskpart`. 2. Select the virtual disk with the command: `Select vdisk file = "Z:\Ubuntu\ext4.vhdx"`. 3. Expand the disk allocation with: `expand vdisk maximum=248000`. 4. Exit Diskpart. **Linux Steps:** 1. Mount `devtmpfs` to `/dev` using: `sudo mount -t devtmpfs none /dev`. 2. List ext4 device mount points with: `mount | grep ext4` to find the mount point (e.g., `/dev/sdc`). 3. Resize the disk space with: `sudo resize2fs /dev/sdc 2048000M`. 4. Verify the expansion using `df -h`.

When creating a Linux distribution through WSL2, it defaults to 1T of space. Yesterday, while creating a dataset, it filled up directly. Using df -h to check:

Filesystem      Size  Used Avail Use% Mounted on

/dev/sdc       1007G  956G     0 100% /

Expansion#

Windows Operation#

Open PowerShell as an administrator and open Disk Management:

diskpart

After entering DISKPART >, select the disk:

Select vdisk file = "Z:\Ubuntu\ext4.vhdx"

Expand allocation (in MB):

expand vdisk maximum=248000

Exit

exit

Linux Operation#

Mount devtmpfs to /dev to manage device files:

sudo mount -t devtmpfs none /dev
List the ext4 device mount points:

mount | grep ext4
Obtain the ext4 disk mount point, similar to the format of /dev/sdc.

Adjust the disk space size, in MB:

sudo resize2fs /dev/sdc 2048000M
Check again and find that it has been successfully expanded with df -h.