Was working with an external drive connected via USB.
Since then, OpenSUSE is slow to boot, hanging for 90 seconds at a udev message regarding “Wait for Complete Device Initialization” searching for a drive UUID that no longer exists.
How to fix?
systemd-analyze critical-chain
The time when unit became active or started is printed after the "@" character.
The time the unit took to start is printed after the "+" character.
graphical.target @1min 38.942s
└─**display-manager.service @1min 38.307s +635ms**
└─time-sync.target @1min 38.296s
└─**chronyd.service @1min 38.243s +52ms**
└─network.target @1min 38.241s
└─**wicked.service @1min 32.322s +5.918s**
└─**wickedd-nanny.service @1min 32.283s +38ms**
└─**wickedd.service @1min 31.970s +310ms**
└─**wickedd-dhcp6.service @1min 31.930s +38ms**
└─network-pre.target @1min 31.925s
└─**firewalld.service @1min 31.722s +202ms**
└─**polkit.service @1min 31.664s +55ms**
└─basic.target @1min 31.657s
└─sockets.target @1min 31.656s
└─virtlogd.socket @1min 31.656s
└─sysinit.target @1min 31.647s
└─**systemd-update-utmp.service @1min 31.603s +44ms**
└─**auditd.service @1min 31.572s +28ms**
└─**systemd-tmpfiles-setup.service @1min 31.531**>
└─local-fs.target @1min 31.523s
└─**tmp.mount @1min 31.518s +4ms**
└─local-fs-pre.target @1.509s
└─**lvm2-monitor.service @1.363s +145ms**
└─dm-event.socket @1.358s
└─system.slice
└─-.slice