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After days of research, I can answer my question: 1. It is info, not error. I can ignore it. 2. It is Intel's fault. their CPU has some hardware bugs. I can not solve it. 3. It is a historical legacy issue related to BIOS and does not require attention. 4. Broadcom's fault, and It is been there...

Today, I installed RHEL7 which is in the support list of the DELL R220 server. But this problem still exists in journalctl -b of RHEL7.:confused:

I searched for these questions. It seems that they only affect power management and do not affect normal system operation?

It seems I only need to care about errors: root@r220:~# dmesg --level=err [ 10.339032] ACPI Error: No handler for Region [ECF2] (0000000048f2285f) [EmbeddedControl] (20221020/evregion-130) [ 10.352744] ACPI Error: Region EmbeddedControl (ID=3) has no handler (20221020/exfldio-261) [...

Can I pretend not to know these problems and continue using PVE? Which problem I mentioned above can not be ignored? :p

For this question, I added acpi_osi=Linux to /etc/kernel/cmdline, and I got this now: ACPI: [Firmware Bug]: BIOS _OSI(Linux) query honored via cmdline

I updated BIOS, iDRAC, and NIC driver of R220, and upgraded PVE to 8. But nothing changed.

I have a Dell PowerEdge R220 (with H310 raid card in non-raid mode, BCM 5720 dual port onboard NIC). And I see some error logs in jrounalctl -b. Can someone tell me what these errors mean? 1. Is this an error? What does this mean? Sep 12 07:46:36 r220 kernel: Kernel command line...

Yes. /dev/disk/by-id is the right way. I reinstalled debian 11 with uefi boot. ( before that is bios boot) Everything is fine except the disk sequence. I just want to know if I encountered an bug or something wierd that I need to know.

The first, pve version: # pveversion -v proxmox-ve: 7.1-1 (running kernel: 5.13.19-2-pve) pve-manager: 7.1-7 (running version: 7.1-7/df5740ad) pve-kernel-helper: 7.1-6 pve-kernel-5.13: 7.1-5 pve-kernel-5.13.19-2-pve: 5.13.19-4 ceph-fuse: 14.2.21-1 corosync: 3.1.5-pve2 criu: 3.15-1+pve-1...

Sorry about this problem. It is solved now. My switch is out of order and I am buying a new one. ------------------------------------- 1. There are windows server 2019 on PVE, and I also have a laptopwith windows LTSC 2019 system. 2. Whenever the CPU and hard disk are not fully loaded, the...