Hi All, Have a question about downgrading rancher ...
# generalq
quaint-librarian-68606
09/05/2025, 1:41 PMHi All, Have a question about downgrading rancher k3s. I know downgrade is not supported, but I am stuck in a unique situation. My client had a rancher cluster with v2.6.3 and somehow underlying k3s has been upgraded to 1.32.6, so now I don’t have a way to upgrade rancher to latest. So I was thinking whether it makes sense to downgrade k3s and upgrade rancher from 2.6 to latest version upgrading one minor version at a time like going from v2.6.x to v2.7.x and then all the way up to latest
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bland-article-62755
09/05/2025, 2:08 PMCan you not upgrade Rancher to 2.9 or something?
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quaint-librarian-68606
09/05/2025, 2:12 PMI tried upgrading to 2.9 on a test machine, but highest version of k3s supported on 2.9 is 1.30, so helm upgrade fails.
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bland-article-62755
09/05/2025, 2:12 PMAnd jumping straight to 2.X (supported) is broke too?
bland-article-62755
09/05/2025, 2:13 PMI think the problem you're going to have is that 2.6 was already EOL like 2 years ago iirc. So getting the correct images might be a challenge.
bland-article-62755
09/05/2025, 2:15 PMI've been able to downgrade Rancher before, but I've never tried with K3s.
bland-article-62755
09/05/2025, 2:16 PM#CGGQEHPPW Might be the best place for that particular question.
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quaint-librarian-68606
09/05/2025, 3:31 PMThanks
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bland-article-62755
09/05/2025, 3:35 PMWould it be better/faster to build a new Rancher instance and back/restore from the EOL one?
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quaint-librarian-68606
09/10/2025, 1:07 PMI can build a new rancher instance. But if I restore database from v2.6.3, I am not sure it will work. Would it work if I build a new rancher instance and import the downstream cluster directly ?
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