resize-photon-os-system-disk

As we work more and more with Photon OS, we encounter typical system administrator tasks, but are used to Debian or Ubuntu.

So here comes a guideline to resize the Photon OS system disk (first disk of the virtual machine). Its pretty simple and straightforward.

1) Increase the virtual disk#

Hint: When the menu is greyed out, there is a snapshot active! You need to delete the snapshot to extend the disk.

2) Rescan the SCSI Bus#

echo 1 > /sys/class/block/sda/device/rescan

3) check the new disk size using#

fdisk -l

4) Install parted#

tdnf update

tdnf install parted

5) Resize the partition#

parted commands:

1. parted /dev/sda
2. print
3. resizepart 2 100%
4. quit

6) Resize the filesystem#

resize2fs /dev/sda2

All done and the partition is resized and fully usable. You can check using df -h