Upgrade from 8.2 to 8.3

[Nino Capodivento]

Hi there, I am acutally usinig proxmox 8.2 on a hetzner bare metal server, it work great. The harware that I am using if not the most recent one, actually I am using the below kernel version that I would keep also on 8.3 in order to avoid possible problems. Do you think that I can upgrade to 8.3 without issues keeping the same kernel ?

Here is the rerult of 'pveversion' command :
pve-manager/8.2.10/536023790079895f (running kernel: 5.15.131-2-pve)

Thanks in advance for the support.

 

[dakralex]

Hi!

As far as I'm aware, there were no specific patches which depend on the kernel version directly. But be aware that the kernel version 5.15.131-2-pve was released on November 14, 2023 and is unsupported and untested on Proxmox VE 8 generally [0], so it'd be advisable to upgrade to a more recent kernel. Is there a more specific reason to stay on the specific kernel version? It's always possible to pin an older kernel version if any issues come up.

On another note, there are newer 5.15 releases on the pve7 repos, the newest being 5.15.158-2-pve, but there won't be any more updates since Proxmox VE 7's end-of-life was July 2024.

[0] https://pve.proxmox.com/wiki/Proxmox_VE_Kernel#Proxmox_VE_8.x

 

[Nino Capodivento]

Hi!

As far as I'm aware, there were no specific patches which depend on the kernel version directly. But be aware that the kernel version 5.15.131-2-pve was released on November 14, 2023 and is unsupported and untested on Proxmox VE 8 generally [0], so it'd be advisable to upgrade to a more recent kernel. Is there a more specific reason to stay on the specific kernel version? It's always possible to pin an older kernel version if any issues come up.

On another note, there are newer 5.15 releases on the pve7 repos, the newest being 5.15.158-2-pve, but there won't be any more updates since Proxmox VE 7's end-of-life was July 2024.

[0] https://pve.proxmox.com/wiki/Proxmox_VE_Kernel#Proxmox_VE_8.x

Thank you so much for the clear reply, I will try to use the lastest suggested kernel for proxmox 8.3 and see if there are issuer. Just for you to better identify my question the CPU I am using at Hetzner is "Intel(R) Xeon(R) W-2145 CPU @ 3.70GHz", is this siutable for the latest kernel version of Proxomx 8.3 ?
Kind Regards

 

[dakralex]

Hey!

CPU I am using at Hetzner is "Intel(R) Xeon(R) W-2145 CPU @ 3.70GHz", is this siutable for the latest kernel version of Proxomx 8.3 ?

I can't say for a specific CPU, but Intel CPUs are well supported in general for Linux. Generally, if a x86 CPU works on an older kernel, it should work on future kernels fine as well. Also, most other major CPU vendors have dedicated kernel teams to ensure compatibility for new CPUs with the upstream kernel before they are even released to the public.

With a quick search I haven't found anything in particular that stood out that will cause troubles, but be sure to stay up-to-date on microcode updates from the CPU vendor itself (e.g. through BIOS firmware upgrades or patching the microcode at boot as described here [0]).

All being said, the kernels that we provide for Proxmox VE and other products are kernels derived from the stable, long-term supported Ubuntu kernel, so they're tested by many users around the world already. Sometimes things still come up, but those are usually quickly fixed and there's always the option to boot and pin an older working kernel. In general, when kernel releases are discontinued (as for 5.15 with the PVE 7 EOL), you should update except if you have a very specific reason not to.

Hope this helps!

[0] https://pve.proxmox.com/pve-docs/pve-admin-guide.html#sysadmin_firmware_cpu

 

[Nino Capodivento]

Hey!


I can't say for a specific CPU, but Intel CPUs are well supported in general for Linux. Generally, if a x86 CPU works on an older kernel, it should work on future kernels fine as well. Also, most other major CPU vendors have dedicated kernel teams to ensure compatibility for new CPUs with the upstream kernel before they are even released to the public.

With a quick search I haven't found anything in particular that stood out that will cause troubles, but be sure to stay up-to-date on microcode updates from the CPU vendor itself (e.g. through BIOS firmware upgrades or patching the microcode at boot as described here [0]).

All being said, the kernels that we provide for Proxmox VE and other products are kernels derived from the stable, long-term supported Ubuntu kernel, so they're tested by many users around the world already. Sometimes things still come up, but those are usually quickly fixed and there's always the option to boot and pin an older working kernel. In general, when kernel releases are discontinued (as for 5.15 with the PVE 7 EOL), you should update except if you have a very specific reason not to.

Hope this helps!

[0] https://pve.proxmox.com/pve-docs/pve-admin-guide.html#sysadmin_firmware_cpu

Thank you Daniel for your support, problem solved, I have successfully updated to 8.3, Just a small problem with one of the nodes of the clusters that was unable to mount the 'local-lvm' storage. I have added at lvm.conf the below line on both nodes

thin_check_options = [ "-q", "--skip-mappings" ]

afterword I have done a ' update-initramfs -u ', and reboot both nodes successfully.
Kind Regards