Same issue on Ubuntu MATE as well (as tested on hirsute daily build). On Xubuntu, when I ran `gnome-software` from terminal, I see following error (last line is when I clicked on 'Restart & Update' button).
sai@sai-Standard-PC-Q35-ICH9-2009:~$ gnome-software 13:50:47:0180 Gs enabled plugins: desktop-categories, fwupd, os-release, packagekit, packagekit-local, packagekit-offline, packagekit-proxy, packagekit-refine-repos, packagekit-refresh, packagekit-upgrade, packagekit-url-to-app, appstream, snap, desktop-menu-path, hardcoded-blocklist, hardcoded-popular, modalias, odrs, packagekit-refine, rewrite-resource, packagekit-history, provenance, systemd-updates, generic-updates, provenance-license, icons, key-colors, key-colors-metadata 13:50:47:0180 Gs disabled plugins: dpkg, dummy, repos, malcontent 14:02:02:0019 Gs CSS parse error 1:107: Using one color stop with linear-gradient() is deprecated. 14:02:03:0681 Gs FIXME: Unknown progress handling is not yet implemented for GsProgressButton 14:02:03:0681 Gs FIXME: Unknown progress handling is not yet implemented for GsProgressButton 14:02:03:0682 Gs FIXME: Unknown progress handling is not yet implemented for GsProgressButton 14:02:03:0682 Gs FIXME: Unknown progress handling is not yet implemented for GsProgressButton 14:02:50:0265 Gs hiding category productivity featured applications: found only 0 to show, need at least 9 14:02:50:0265 Gs not handling error failed for action get-category-apps: net/http: request canceled (Client.Timeout or context cancellation while reading body) 14:02:50:0267 Gs hiding category audio-video featured applications: found only 0 to show, need at least 9 14:02:50:0268 Gs not handling error failed for action get-category-apps: net/http: request canceled (Client.Timeout or context cancellation while reading body) 14:02:50:0270 Gs adding wildcard app */*/*/*/org.gnome.Builder.desktop/* to plugin cache 14:02:50:0271 Gs adding wildcard app */*/*/*/org.gnome.Calculator.desktop/* to plugin cache 14:02:50:0272 Gs adding wildcard app */*/*/*/org.gnome.clocks.desktop/* to plugin cache 14:02:50:0272 Gs adding wildcard app */*/*/*/org.gnome.Dictionary.desktop/* to plugin cache 14:02:50:0273 Gs adding wildcard app */*/*/*/org.gnome.Documents.desktop/* to plugin cache 14:02:50:0274 Gs adding wildcard app */*/*/*/org.gnome.Evince/* to plugin cache 14:02:50:0274 Gs adding wildcard app */*/*/*/org.gnome.gedit.desktop/* to plugin cache 14:02:50:0275 Gs adding wildcard app */*/*/*/org.gnome.Maps.desktop/* to plugin cache 14:02:50:0277 Gs adding wildcard app */*/*/*/org.gnome.Weather/* to plugin cache 14:02:50:0280 Gs not handling error failed for action get-popular: net/http: request canceled (Client.Timeout or context cancellation while reading body) 14:07:38:0573 Gs automatically prevented from changing kind on system/package/*/generic/libgphoto2/* from generic to unknown! 14:46:35:0457 Snapd snapd_client_refresh_sync: assertion 'name != NULL' failed 14:46:35:0458 Gs snap did not set error for gs_plugin_update 14:46:35:0458 Gs FIXME: Unknown progress handling is not yet implemented for GsProgressButton 14:46:35:0506 Gs Calling org.gnome.SessionManager.Reboot failed: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.gnome.SessionManager was not provided by any .service files ** Tags added: ubuntu-mate xubuntu -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-software in Ubuntu. https://bugs.launchpad.net/bugs/1916711 Title: 'Restart & Update' in 'Software' application does nothing in Xubuntu Status in gnome-software package in Ubuntu: New Bug description: Release: Xubuntu dailybuilds ISO (currently 20210224 ISO) SW and Version: gnome-software, 3.38.0-3 How to reproduce: - Launch 'Software'. If available, it shows updates under 'Updates'. - Click on 'Download' it changes to 'Restart & Update' after a while (I did not see any progress bar, may be update was very small or it is normal) - Click on 'Restart & Update' button. Expected: System should reboot and during reboot the updates should be installed. Actual: Nothing happens. ProblemType: Bug DistroRelease: Ubuntu 21.04 Package: gnome-software 3.38.0-3 ProcVersionSignature: Ubuntu 5.10.0-14.15-generic 5.10.11 Uname: Linux 5.10.0-14-generic x86_64 ApportVersion: 2.20.11-0ubuntu59 Architecture: amd64 CasperMD5CheckResult: unknown CurrentDesktop: XFCE Date: Wed Feb 24 13:10:53 2021 InstallationDate: Installed on 2021-02-24 (0 days ago) InstallationMedia: Xubuntu 21.04 "Hirsute Hippo" - Alpha amd64 (20210224) InstalledPlugins: gnome-software-plugin-flatpak N/A gnome-software-plugin-snap 3.38.0-3 SourcePackage: gnome-software UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-software/+bug/1916711/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
