Re: [OpenIndiana-discuss] After locked up zpool scrub, BIOS not recognizing HDDs to boot

[Toomas Soome via openindiana-discuss]

> On 26. Sep 2022, at 07:59, Carl Brewer <c...@bl.echidna.id.au> wrote:
> 
> On 25/09/2022 6:59 pm, Toomas Soome via openindiana-discuss wrote:
>>> On 25. Sep 2022, at 02:33, Carl Brewer <c...@bl.echidna.id.au> wrote:
>>> 
>>> 
>>> I have a ~3 year old PC, generic motherboard, OI hipster 'something', that 
>>> last night, I had to force a reboot on, because a zpool scrub was jammed up 
>>> and nothing would kill it.  The scrub was on a raidz pool, not the boot 
>>> drives, so I figured it would probably be ok. I was wrong!
>> Assuming up to date system, this *may* indicate issue related to disk 
>> controller.
> 
> It's possible, but I think pretty unlikely.  When I booted it off the USB 
> drive, I could import all the existing zpools - that's how I rescued the 
> VirtualBox VDI's and got them up quickly.


scrub can put some solad on system - load on memory at first, then on IO system.

> 
> 
>>> Any hints for how to reinstall a boot environment onto an existing zfs 
>>> mirror?  If I have to do a full reinstall onto it, that's not a total 
>>> disaster, I got what I needed off it, but it would be interesting to do.  I 
>>> haven't yet gone through the BIOS settings to be certain it's not some 
>>> stupid BIOS default around UEFI or something, but I didn't change the BIOS 
>>> myself, I suspect that it isn't the problem.
>>> 
>> With 3 years old, was it actually using UEFI or BIOS boot? If firmware does 
>> not recognize disk as bootable, it may suggest that FAT32 in ESP is damaged 
>> or for BIOS, MBR signature is bad or like. In any case, it should not 
>> require reinstall, bootadm install-bootloader -f might be enough.
> 
> 
> I'm about to pull it out of my racks and get it on a desk and work on it, 
> I'll try that first, thank you - do I need to do it to both drives in the 
> zpool mirror, or does mirroring take care of that for me?

bootadm install-bootloader will walk all the disks by itself. zpool mirror does 
not help you there because bootblocks are outside the [mirrored] data area.

rgds,
toomas

> 
> 
>> If you still do want to reinstall, openindiana installer does provide option 
>> to use existing pool on very first screen (press F5). However, that option 
>> will leave some manual work for you (creating users etc).
> 
> The machine has just the one user, so that's an easy path. All it does is 
> host some VirtualBox guests. I want to update to the latest OI anyway, so not 
> unhappy if I have to go this way.
> 
> Thank you
> 
> Carl
> 
> 
> 
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