After a few unexpected reboots/powerdowns (hardware battery controller of my
thinkpad locked up and needed reset), I found that there are no journal entries
persisted since I rebooted on august 20:
```
mixi:~ # journalctl --since "2024-08-20 20:54:57"|head
Aug 20 20:54:57 mixi systemd[1]: Unmounted /opt.
Aug 20 20:54:57 mixi systemd[1]: root.mount: Deactivated successfully.
Aug 20 20:54:57 mixi systemd[1]: Unmounted /root.
Aug 20 20:54:57 mixi systemd[1]: srv.mount: Deactivated successfully.
Aug 20 20:54:57 mixi systemd[1]: Unmounted /srv.
Aug 20 20:54:57 mixi systemd[1]: tmp.mount: Deactivated successfully.
-- Boot 5ab5c43121a740329f4a0b3dfb160b65 --
Aug 25 10:32:45 mixi kernel: Linux version 6.11.0-rc4-4.g884d35d-default
(geeko@buildhost) (gcc (SUSE Linux) 13.3.1 20240807 [revision
9d368828bd4d04ce507e02a581be850fca849fae], GNU ld (GNU Binutils; openSUSE
Tumbleweed) 2.43.0.20240806-1) #1 SMP PREEMPT_DYNAMIC Fri A
ug 23 20:02:05 UTC 2024 (884d35d)
Aug 25 10:32:45 mixi kernel: Command line:
BOOT_IMAGE=/boot/vmlinuz-6.11.0-rc4-4.g884d35d-default
root=/dev/mapper/system-root rd.lvm.
lv=system/swap resume=/dev/system/swap mitigations=auto security=apparmor
splash=silent
Aug 25 10:32:45 mixi kernel: BIOS-provided physical RAM map:
```
I did reboot a few times already today:
```
mixi:~ # last reboot|head
reboot system boot 6.11.0-rc4-4.g88 Sun Aug 25 10:32 - still running
reboot system boot 6.11.0-rc4-2.g59 Sun Aug 25 10:22 - 10:32 (00:10)
reboot system boot 6.11.0-rc4-2.g59 Sun Aug 25 10:16 - 10:20 (00:04)
reboot system boot 6.11.0-rc4-2.g59 Sun Aug 25 10:08 - 10:12 (00:03)
reboot system boot 6.11.0-rc4-2.g59 Sat Aug 24 23:28 - crash
reboot system boot 6.11.0-rc4-2.g59 Tue Aug 20 20:55 - crash
reboot system boot 6.11.0-rc3-3.g66 Sun Aug 18 14:19 - 20:54 (2+06:35)
reboot system boot 6.11.0-rc3-3.g66 Sun Aug 18 14:11 - 14:18 (00:07)
reboot system boot 6.11.0-rc3-3.g66 Sun Aug 18 14:09 - 14:11 (00:01)
reboot system boot 6.11.0-rc3-3.g66 Sun Aug 18 14:04 - 14:07 (00:02)
```
But journalctl does not know about those:
```
mixi:~ # journalctl --list-boots |tail
-9 3eb9bb2611184870a1ed229d864a69b8 Sat 2024-07-27 10:36:35 CEST Sat
2024-07-27 10:45:05 CEST
-8 4bf6bb115cfc4ab4b3126b1a00c6c9b7 Sat 2024-07-27 10:45:20 CEST Mon
2024-07-29 16:13:28 CEST
-7 8286230fe28344c59fa48996fd0807a7 Mon 2024-07-29 16:14:34 CEST Tue
2024-08-13 11:29:22 CEST
-6 1a4645e76c634668bce7dce043b72833 Tue 2024-08-13 11:31:06 CEST Tue
2024-08-13 11:32:44 CEST
-5 eebf61e09fe24938ad85d14aa7727d9c Tue 2024-08-13 11:33:00 CEST Sun
2024-08-18 14:04:40 CEST
-4 2c1c576c22d84d82b8373c6df2a57d42 Sun 2024-08-18 14:04:57 CEST Sun
2024-08-18 14:07:02 CEST
-3 855b89b2e857488fa542912da26616b8 Sun 2024-08-18 14:09:33 CEST Sun
2024-08-18 14:11:05 CEST
-2 210c7a03d56a4d3e8f316b3c5feb0691 Sun 2024-08-18 14:11:20 CEST Sun
2024-08-18 14:18:36 CEST
-1 d131d91a089e4de6ba71c982e7a97167 Sun 2024-08-18 14:19:38 CEST Tue
2024-08-20 20:54:57 CEST
0 5ab5c43121a740329f4a0b3dfb160b65 Sun 2024-08-25 10:32:45 CEST Sun
2024-08-25 11:23:23 CEST
```