Re: ZFS: i/o error - all block copies unavailable

On Fri 2023-01-06 02:15 PM MST -0700, <mike@sentex.net> wrote:

> On 1/6/2023 4:06 PM, John Doherty wrote:
>
>> BIOS settings look fine. Boot option #1 is a Micron SSD as it should 
>> be. It's not clear which of the two installed devices like that it 
>> is. There's one on SATA port 0 and an identical one on SATA port 1.
>>
>> Also, occurred to me after my previous message that the machine can't 
>> be trying to boot from zp0, there's no OS installed there. If I let 
>> it try to boot normally, it gets far enough that I can ping its 
>> network interfaces, so it must be trying to boot from the zroot pool.
>>
>> Now wondering whether there's a problem with one of the two SSDs 
>> configured as the zroot pool. So far, don't see how to choose whether 
>> it boots from SATA P0 or SATA P1 but there's got to be a way, I 
>> think.
>>
>
> Does it mount anything from zp0 like /usr thats required for the OS to 
> fully boot ?   Can you not use ipmi to bring up the console and log 
> in via single user mode ?  You can change the boot pref in the BIOS 
> (on most motherboards anyways) but if its a mirror, beyond the boot 
> loader I dont think it should make much of a difference or even hit 
> F11 to bring the boot menu at bios time. But its when you move to 
> RELENG_13 with the different zfs features you need to be really 
> careful to update the boot loaders in order to recognize the new 
> features of the pool.

Thanks for your response. No, it doesn't mount anything from zp0 that's 
required to boot.

Figured out how to choose between SATA P0 and P1 as the boot device. Was 
set to P0, now set to P1, not really making any difference.

Cannot get to single-user mode via IPMI. Not sure if the machine is 
really not booting or if I'm having some problem with IPMI. I'm using 
SuperMicro IPMIView on a linux machine which seems to work OK.

Right now, I have the BIOS set to boot from SATA P1 and when I try to 
boot to single-user mode from the beastie menu, it gets this far:

Loading kernel...
/boot/kernel/kernel text=0x1752e24 data=0x140 data=0x7662b0 
syms=[0x8+0x188a18+0x8+0x1a5dbc]
loading required module 'smbus'
/boot/kernel/smbus.ko size 0x2680 at 0x24a7000
loading required module 'opensolaris'
/boot/entropy size=0x1000

And then the display stops updating.

If I try to boot normally, the IPMI text console display also stops 
updating after "Loading kernel..." but things seem to proceed farther 
than that, in that about 15 seconds later, it starts responding to ping. 
The IPMI display never updates, though.

Wishing I could connect to this thing via serial console and ditch IPMI 
but don't have that available. Getting to IPMI on this thing is sort of 
roundabout because of some goofiness in the networks involved, might try 
to simplify that if I can figure out how.