napalmyourmom Posted December 9, 2022 Share Posted December 9, 2022 (edited) I just upgraded from 6.8.3 to 6.11.5 On one of my disks I get the error Unmountable: Unsupported Partition Layout Reverting back to 6.8.3 got it to mount again (phew!), but now I cannot upgrade without facing the same problem... not sure what to do? A while ago (sometime last year) I updated and the same thing happened so I stopped updating for a while. Now here I am facing the same issue again I have attached a diagnostics dump - would be incredibly grateful to anyone who can shed some light on this for me. tower-diagnostics-20221209-0046.zip Edited December 9, 2022 by napalmyourmom Quote Link to comment
Solution JorgeB Posted December 9, 2022 Solution Share Posted December 9, 2022 Assuming you have valid parity update again, unassign that disk and start the array, Unraid will recreate the partition so the emulated disk should mount, if yes and contents look correct rebuild on top. Quote Link to comment
napalmyourmom Posted December 9, 2022 Author Share Posted December 9, 2022 6 hours ago, JorgeB said: Assuming you have valid parity update again, unassign that disk and start the array, Unraid will recreate the partition so the emulated disk should mount, if yes and contents look correct rebuild on top. So I have to actually rebuild the 10tb of data on this disk? What is actually causing this? If the partition/data were truly corrupt, it shouldn't be functional when I downgrade. I just want to avoid having to deal with this ever again... Quote Link to comment
JorgeB Posted December 9, 2022 Share Posted December 9, 2022 9 minutes ago, napalmyourmom said: So I have to actually rebuild the 10tb of data on this disk? Yep. 9 minutes ago, napalmyourmom said: What is actually causing this? Something in the partition layout is not correct and as Unraid requires, IIRC it was an MBR issue for disks that still had the preclear signature there. Quote Link to comment
napalmyourmom Posted December 12, 2022 Author Share Posted December 12, 2022 Just finished the disk rebuild and I am good to go. Thanks for the help @JorgeB! 1 Quote Link to comment
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