I have an unusual setup, because I don’t have an array. I have 2 cache drives in a pool (basically mirrored I think) and I use SMB on a UNAS PRO as my storage.

I watched SpaceInvader One’s video about migrating to internal boot, but I have no options to use the mover etc.

As I have a cache which is a 2 SSD pool, is there a way to separate it temporarily or something, reformat one and then copy the data back from the other and then add the drive back into the pool?

Or maybe add a USB drive as an unassigned device and copy the data to that? Just don’t want to lose my Unraid config because all the apps have been fine tuned over time.

If the pool is mirrored, you can do this:

https://forums.unraid.net/topic/197830-unraid-os-version-730-beta1-available/page/4/#findComment-1614727

It’s a mirrored ZFS pool, will that still work?

Well something went wrong..

Any way to fix this?

I got back in by changing boot order to USB.

But now I have this and can’t get into the Onboarding Wizard, it just doesn’t open.

I have it back up and running but it will only boot from USB. I get this notification :

Unraid Booted from USB Device

26 Mar at 10:35

Internal Boot Available

This system supports internal boot, but Unraid is currently running from a USB flash device. Please change your boot order via your motherboard BIOS.

And I now have only 1 SSD in the cache obviously. No idea how to fix now so that I can use internal boot because the Onboarding Wizard no longer works.

Changing boot order in BIOS results in the missing bzimage error etc..

Post the current diagnostics to see the status.

Attached!

unraid-diagnostics-20260326-1105.zip

Assuming nvme1n1 contains the old data, wipe nvme0n1 with:

blkdiscard -f /dev/nvme0n1

Then unassign that pool device and set the pool to 0 slots, then rerun the wizard to create the boot pool, but the same thing may happen again. It looks like the boot pool was correctly created; it's just not booting. It could be a BIOS/firmware issue.

There is no option to set the pool to 0 slots.. only 1 upwards..

Also it won’t let me start the array with the drive unassigned. Remove pool is also greyed out.

Edited March 26Mar 26 by psykix

It's detecting a boot pool, you can do a new config, then assign only the other pool device.

Tools - New config - Keep none - Apply

Then add a pool with nvme1n1, leave the fs set to auto, and start the array

Now stop and run the wizard (other device must have been cleared)

Ok, have a new config and the original boot drive is in unassigned devices. However Onboarding Wizard still won’t run.

I tried running the blkdiscard command again on it, but the wizard still does nothing. Doesn’t even bring up the UI for it.

I suspect that the wizard thinks it is already set up. No idea what to change so that it will run again.

Edited March 26Mar 26 by psykix

Post the output from fdisk -l /dev/nvme0n1

Disk /dev/nvme0n1: 931.51 GiB, 1000204886016 bytes, 1953525168 sectors

Disk model: CT1000P3PSSD8

Units: sectors of 1 * 512 = 512 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

It's been wiped, try again after rebooting

I already had rebooted.. the wizard still wouldn’t run

Doesn't run or doesn't show the internal boot option?

When I press the Show Onboarding Wizard button, it’s like the page refreshes, but nothing actually happens. Occasionally the wizard will very briefly “flash” on the screen , but not actually launch.

More often than not it just looks to do a page refresh.

Ahh, that's a different issue, nothing to do with the boot pool. Try updating the Connect plugin, or remove it and reboot before trying again.

I uninstalled the Connect plugin. I only installed that today for the first time when I couldn’t boot to see if it would help.

It’s made no difference though, wizard still won’t run. Can’t see anything in the log file either.

Any way to “reset” the wizard?

Edited March 26Mar 26 by psykix

Video of what it does.

I just realised also that Secure Boot was on in the BIOS. Have disabled it now.

Just need to get the wizard to run!

Edited March 26Mar 26 by psykix

24 minutes ago, psykix said:

I uninstalled the Connect plugin.

Did you reboot after? Also try safe mode or a different browser.

Yes I rebooted afterwards. Using iPad Pro originally, just switched to a Windows Laptop and same problem.

Does exactly the same in safe mode!