Auto-Expand Disk Failed with [Errno 22]

TrueNAS General
1

Hello! I have a six-wide Z1 pool that original started with all 4TB disks many years ago with FreeNAS. I finally finished replacing all the disks with 8TB drives, but the auto-expand didn’t work.
I tried re-sizing the partitions as outlined in this thread then did a reboot.

I then clicked the expand button and it gave me this error:

Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/middlewared/job.py", line 515, in run
    await self.future
  File "/usr/lib/python3/dist-packages/middlewared/job.py", line 560, in __run_body
    rv = await self.method(*args)
         ^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/middlewared/schema/processor.py", line 174, in nf
    return await func(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/middlewared/schema/processor.py", line 48, in nf
    res = await f(*args, **kwargs)
          ^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/middlewared/plugins/pool_/expand.py", line 61, in expand
    await self.expand_partition(part_data)
  File "/usr/lib/python3/dist-packages/middlewared/plugins/pool_/expand.py", line 94, in expand_partition
    await self.middleware.run_in_thread(wipe_label)
  File "/usr/lib/python3/dist-packages/middlewared/main.py", line 627, in run_in_thread
    return await self.run_in_executor(io_thread_pool_executor, method, *args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/middlewared/main.py", line 624, in run_in_executor
    return await loop.run_in_executor(pool, functools.partial(method, *args, **kwargs))
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/concurrent/futures/thread.py", line 58, in run
    result = self.fn(*self.args, **self.kwargs)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/middlewared/plugins/pool_/expand.py", line 91, in wipe_label
    f.seek(wipe_start)
OSError: [Errno 22] Invalid argument

lsblk shows this:

sda           8:0    0   7.3T  0 disk 
├─sda1        8:1    0     2G  0 part 
└─sda2        8:2    0   7.3T  0 part 
sdb           8:16   0   7.3T  0 disk 
├─sdb1        8:17   0     2G  0 part 
└─sdb2        8:18   0   7.3T  0 part 
sdc           8:32   0   7.3T  0 disk 
└─sdc1        8:33   0   7.3T  0 part 
sdd           8:48   0   7.3T  0 disk 
├─sdd1        8:49   0     2G  0 part 
└─sdd2        8:50   0   7.3T  0 part 
sde           8:64   0   7.3T  0 disk 
├─sde1        8:65   0     2G  0 part 
└─sde2        8:66   0   7.3T  0 part 
sdf           8:80   0   7.3T  0 disk 
├─sdf1        8:81   0     2G  0 part 
└─sdf2        8:82   0   7.3T  0 part 
sdg           8:96   0 447.1G  0 disk 
├─sdg1        8:97   0     1M  0 part 
├─sdg2        8:98   0   512M  0 part 
└─sdg3        8:99   0 446.6G  0 part 
zd0         230:0    0   100G  0 disk 
nvme0n1     259:0    0 119.2G  0 disk 
├─nvme0n1p1 259:1    0   512K  0 part 
└─nvme0n1p2 259:2    0 119.2G  0 part

I’m on ver 25.04.2.3

Thank you for any help or advice!