This example takes olddisk.qcow2 and resizes it into newdisk.qcow2,
extending one of the guest's partitions to fill the extra space.
pr3l14t0r
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| FROM ubuntu:20.04 | |
| ARG DEBIAN_FRONTEND=noninteractive | |
| RUN apt-get update | |
| RUN apt-get install -y testdisk wget gnupg | |
| RUN wget -q -O - https://download.bell-sw.com/pki/GPG-KEY-bellsoft | apt-key add - | |
| RUN echo "deb [arch=amd64] https://apt.bell-sw.com/ stable main" > /etc/apt/sources.list.d/bellsoft.list | |
| RUN apt-get update |
joseluisq
/ resize_disk_image.md
Last active
December 7, 2025 09:29
How to resize a qcow2 disk image on Linux