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KVMゲストOSのvda容量を広げる

How To extend/increase KVM Virtual Machine (VM) disk size | ComputingForGeeks

How To resize an ext2/3/4 and XFS root partition without LVM | ComputingForGeeks

% sudo qemu-img resize /kvm_images/mykvm.qcow2 +50G
% sudo qemu-img info /kvm_images/mykvm.qcow2
% sudo virsh start mykvm
% ssh mykvm
% lsblk
% sudo apt -y install cloud-guest-utils
% sudo growpart /dev/vda 1
% lsblk
% sudo resize2fs /dev/vda1
% df -hT|grep /dev/vda