Tuesday, October 21, 2025

Conversion Arch Linux BTRFS LV from 20 GB to maximum available size on virtual disk (/dev/vda)

 Following below is an attempt increase Arch Linux Btrfs LV from 20 GB  to maximum available size on virtual disk  in Post-installation phase.  Original Btrfs LV size cannot be changed during archinstall active state. After archinstall finishes up we are going to switch to terminal session via "exit" option rather then reboot .

# lvextend -l %100FREE /dev/ArchinstallVg/root

# btrfs filesystem resize max /mnt

# reboot




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