Proxmox: enlarging non-lvm vm ext4-partitions at end of file

system-software/proxmox.md

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+# Proxmox
+
+Proxmox is an environment for virtual machines and containers.
+
+## Disk Management
+
+### Enlarging disk of a VM
+
+ATTENTION: Please note that the partition to enlarge has to be the last one with the free space after it.
+This guide does not consider LVMs and is written for partitions with ext4 filesystems.
+
+SSH into Proxmox.
+Enlarge a disk by using:
+`qm resize <vmid> <vm-disk-to-enlarge> <size>`
+For example:
+`qm resize 100 ide0 +100G`
+
+SSH into the VM.
+- run `lsblk` check if the disk size has changed
+- if not `reboot` the virtual machine
+
+In the following it is assumed that the partition to enlarge is `/dev/sda2`
+- change the size of the partition with `parted /dev/sda`
+- inside of parted run `print free` and check where the free space after your partition ends
+- run `resizepart` and follow the instructions; End is the number you checked in the last step
+- `quit` parted
+
+Now you need to resize the filesystem with `resize2fs /dev/sda2`.
+
+