Issue during installation on Lenovo ThinkSystem SR650V4

S

sebalinux

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Dec 4, 2025
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Hello, I'm facing an error during the installation of PVE 9.1 on a ThinkSystem SR650 V4 with a ThinkSystem M.2 RAID B545i-2i (Broadcom Megaraid) but the M.2 disks are configured as JBOD, so no HW RAID1 but I'm trying to realize ZFS RAID1 SW during installation. If I install the PVE 8.4 on the same server it works like a charm, so I suspect that it is something new related to the last version.

This error occurs even if I try to install on a single disk. It disappears if I configure the two M.2 disks using the RAID adapter to realize a RAID1 volume.

Any suggestion?

Thank you,
Mario
HostScreenShot.jpg
 
Hi Mario,

I thinks problem may be with writeback function on Raid controller.

If you set the disks to be separated, did you disable the raid function on the controller and wipe disks?
This error is on installed PVE 9.1 or when you boot ISO before/during installing of PVE v9.1.

R.
 
Hi Kosnar, I agree with you, I think that the problem is related to the RAID controller. I've already tried to wipe the disk and the issue is the same.
I've also tried to install PVE 9.1 on a single disk, avoiding the use of ZFS and choosing ext4 as filesystem, but I got the same behavior. This error occurs once on an installed PVE 9.1 and then always when I try to install PVE 9.1 on that server. To clarify, I'm executing these test for my company, this is why I'm trying the same test cases both PVE 8.4 (no issue until now) and PVE 9.1 (only this issue with this specific case). I also understand that it is a limit case, who is the one that has a RAID M.2 adapter and choose to have SW RAID for the boot disk? But since I'm testing, I have to test also this case. Unfortunately the server has been allocated to a more urgent case and I'll have it back starting from December 16th, I'll restart the investigation later.

Thank you for the support,
Mario
 
Hi, @sebalinux .
I know it would be a workaround, not a solution, but to locate the reason closer, you may try as well installing PVE 8 and then upgrading to PVE 9 and checking if it boots correctly.
 
Onslow said:
Hi, @sebalinux .
I know it would be a workaround, not a solution, but to locate the reason closer, you may try as well installing PVE 8 and then upgrading to PVE 9 and checking if it boots correctly.
Click to expand...
Hi @Onslow , thanks for the suggestion. As said, the test case is a little bit "extreme" (i.e. using a RAID adapter to pass two disk to the system as JBOD, not so common in the market) and I have to test it for greenfield new installation. If I'll have enough time I'll try your suggestion, considering that the error could appear later during the normal use and not in the upgrade-boot phase.
 
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