I had a ppower failure that went to the end of the UPS.
I think the shutdown was not graceful because it won’t go past the boot menu with U6.8.
Mounting from zfs:boot-pool/ROOT/13.0.U6.7 failed with error 2
I tried going to "option 7 boot environment” and choosing U6.7 to same problem.
I have a boot pool.
What next ?
Thanks
I have a screenshot but cannot embed it
Do you have a current saved system configuration file? Do you have earlier OS versions to try on your boot environments list?
Browse some other threads and do the Tutorial by the Bot to get your forum trust level up and post images and links
TrueNAS-Bot
Type this in a new reply and send to bring up the tutorial, if you haven’t done it already.
@TrueNAS-Bot start tutorial
Will do.
But I had an account on the archived previous forum were I posted a bit. Sad it has not been kept.
@TrueNAS-Bot start tutorial
Google AI gave me the solution of trying a previous environment which I did per first post.
Second AI proposition is to reinstall from an ISO on a USB stick and then restore my last config file, which dates to U6.7 just prior to updating to U6.8
I could do that but willing to try any other suggestion
Oh and this is a capture from Java console under iDRAC 7.
Here is the whole boot sequence on IMGUR
Do you have mirrored boot pool? You can try setting your boot device to the second mirror, if so. I’m guessing a problem with the drive? Posting your hardware and pool setup could help. I am just guessing from the video
Trying the fresh install over the boot-pool and reloading the System Configuration should be pretty safe as long as you didn’t make a lot of changes after the update. I am talking about pool reconfiguration and other large changes.
Yes I do. Where is the option to switch to the second disk for booting ?
PS: It’s a Dell Poweredge. The time required for POST is daunting 
You mean like in the signature? I’ll do that. That was all on the “legacy forum”
From BIOS, I switched boot channel to B to no avail.
How can both disk be compromized ?
@HoneyBadger On Core, won’t boot after a power failure. Just looking for second opinions before suggesting new install over boot pool, in case it is something simple I am missing.
Thanks for asking a second opinion because I just finished my thumb drive but I’ll wait for you or honeybadger for a go no/go
@sretalla @Samuel_Tai @dan
I found on the legacy forums that you were of great help to me with Core.
There is a video at post #7, maybe you have a solution other than reinstall ?
By any chance, did you upgrade your boot-pool? The bootloader can’t parse many newer ZFS pool properties, which would result in this sort of failure to boot from either member of the mirror VDEV.
The only way out of this I’m aware of on Core is to reinstall the boot-pool and reload your configuration.
See this post from @kris on the old forum:
This was my thought as well. SCALE/CE will prevent this by setting a compatibility flag on the pool which stops it from getting a feature through zpool upgrade that prevents boot, but CORE had no such safeguard.
If both devices are giving the same error, I have to assume it’s something like this - the video doesn’t seem to have anything thrown as far as I/O errors.
I don’t remember doing so. Last update was from U.6 to U.8 and the system was rebooted a couple times since. Only the reboot from power outage yesterday resulted in this problem.
Well, my thumb drive is ready so I’ll go along and reinstall then.
I did a fresh install in UEFI mode (prior was BIOS)
Selected both SSD for a boot pool. System said Success!
Reboot
FAILED
Any other advice ?
Pull one of the SSDs and install to a singleton. Add the 2nd as a mirror once booted. There’s no provision for setting up a mirrored boot-pool during the Core install.
