Public bug reported:
Installed KVM and Virt-Manager successfully.
When trying to add storage pool as local directory on my ext4 file system, I
get this error:
Error creating pool: Could not build storage pool: unable to control COW
flag on '/var/lib/libvirt/images/pool', not btrfs: Function not
implemented
Traceback (most recent call last):
File "/usr/share/virt-manager/virtManager/asyncjob.py", line 75, in cb_wrapper
callback(asyncjob, *args, **kwargs)
File "/usr/share/virt-manager/virtManager/createpool.py", line 378, in
_async_pool_create
poolobj = pool.install(create=True, meter=meter, build=build)
File "/usr/share/virt-manager/virtinst/storage.py", line 415, in install
raise RuntimeError(errmsg)
RuntimeError: Could not build storage pool: unable to control COW flag on
'/var/lib/libvirt/images/pool', not btrfs: Function not implemented
It seems that virt-manager is trying to disable the COW flag and returns an
error because my file system is not BTRFS.
Tested on 2 fresh installs of Ubuntu Studio 20.10
Tested on 1 install of Ubuntu 20.04.1 and virt-manager has no issues with
local storage on ext4 file system.
ProblemType: Bug
DistroRelease: Ubuntu 20.10
Package: virt-manager 1:2.2.1-4ubuntu2
ProcVersionSignature: Ubuntu 5.8.0-25.26-lowlatency 5.8.14
Uname: Linux 5.8.0-25-lowlatency x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.11-0ubuntu50
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: KDE
Date: Sat Oct 24 02:15:08 2020
InstallationDate: Installed on 2020-10-07 (16 days ago)
InstallationMedia: Ubuntu-Studio 20.10 "Groovy Gorilla" - Beta amd64 (20200930)
PackageArchitecture: all
SourcePackage: virt-manager
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: virt-manager (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug groovy
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https://bugs.launchpad.net/bugs/1901242
Title:
virt-manager local directory storage failing
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