curtin: Installation started. (21.2-26-g809817fda)
start: cmd-install/stage-partitioning/builtin/cmd-block-meta: curtin command block-meta
get_path_to_storage_volume for volume disk-sda({'ptable': 'gpt', 'serial': 'WDC_WD800JD-60LSA5_WD-WMAM9HA31059', 'path': '/dev/sda', 'wipe': 'superblock-recursive', 'preserve': False, 'name': '', 'grub_device': True, 'type': 'disk', 'id': 'disk-sda'})
Processing serial WDC_WD800JD-60LSA5_WD-WMAM9HA31059 via udev to WDC_WD800JD-60LSA5_WD-WMAM9HA31059
lookup_disks found: ['ata-WDC_WD800JD-60LSA5_WD-WMAM9HA31059', 'ata-WDC_WD800JD-60LSA5_WD-WMAM9HA31059-part3', 'ata-WDC_WD800JD-60LSA5_WD-WMAM9HA31059-part1', 'ata-WDC_WD800JD-60LSA5_WD-WMAM9HA31059-part2']
Running command ['udevadm', 'info', '--query=property', '--export', '/dev/sda'] with allowed return codes [0] (capture=True)
/dev/sda is multipath device? False
Running command ['udevadm', 'info', '--query=property', '--export', '/dev/sda'] with allowed return codes [0] (capture=True)
/dev/sda is multipath device member? False
block.lookup_disk() returning path /dev/sda
Running command ['partprobe', '/dev/sda'] with allowed return codes [0, 1] (capture=False)
Running command ['udevadm', 'settle'] with allowed return codes [0] (capture=False)
TIMED udevadm_settle(): 0.314
devsync happy - path /dev/sda now exists
return volume path /dev/sda
get_path_to_storage_volume for volume partition-1({'device': 'disk-sda', 'size': 80023126016, 'wipe': 'superblock', 'flag': '', 'number': 2, 'preserve': False, 'type': 'partition', 'id': 'partition-1'})
get_path_to_storage_volume for volume disk-sda({'ptable': 'gpt', 'serial': 'WDC_WD800JD-60LSA5_WD-WMAM9HA31059', 'path': '/dev/sda', 'wipe': 'superblock-recursive', 'preserve': False, 'name': '', 'grub_device': True, 'type': 'disk', 'id': 'disk-sda'})
Processing serial WDC_WD800JD-60LSA5_WD-WMAM9HA31059 via udev to WDC_WD800JD-60LSA5_WD-WMAM9HA31059
lookup_disks found: ['ata-WDC_WD800JD-60LSA5_WD-WMAM9HA31059', 'ata-WDC_WD800JD-60LSA5_WD-WMAM9HA31059-part2', 'ata-WDC_WD800JD-60LSA5_WD-WMAM9HA31059-part1', 'ata-WDC_WD800JD-60LSA5_WD-WMAM9HA31059-part3']
Running command ['udevadm', 'info', '--query=property', '--export', '/dev/sda'] with allowed return codes [0] (capture=True)
/dev/sda is multipath device? False
Running command ['udevadm', 'info', '--query=property', '--export', '/dev/sda'] with allowed return codes [0] (capture=True)
/dev/sda is multipath device member? False
block.lookup_disk() returning path /dev/sda
Running command ['partprobe', '/dev/sda'] with allowed return codes [0, 1] (capture=False)
Running command ['udevadm', 'settle'] with allowed return codes [0] (capture=False)
TIMED udevadm_settle(): 0.271
devsync happy - path /dev/sda now exists
return volume path /dev/sda
Running command ['partprobe', '/dev/sda'] with allowed return codes [0, 1] (capture=False)
Running command ['udevadm', 'settle'] with allowed return codes [0] (capture=False)
TIMED udevadm_settle(): 0.243
devsync happy - path /dev/sda now exists
return volume path /dev/sda2
block-meta: extracted devices to clear: ['/dev/sda', '/dev/sda2']
Declared block devices: ['/dev/sda', '/dev/sda2']
clearing devices=['/dev/sda', '/dev/sda2']
start: cmd-install/stage-partitioning/builtin/cmd-block-meta/clear-holders: removing previous storage devices
Running command ['mdadm', '--assemble', '--scan', '-v'] with allowed return codes [0, 1, 2] (capture=True)
mdadm_assemble had unexpected return code
Running command ['udevadm', 'settle'] with allowed return codes [0] (capture=False)
TIMED udevadm_settle(): 0.024
Running command ['pvscan'] with allowed return codes [0] (capture=True)
Running command ['vgscan'] with allowed return codes [0] (capture=True)
Running command ['vgchange', '--activate=y'] with allowed return codes [0] (capture=True)
Running command ['udevadm', 'settle'] with allowed return codes [0] (capture=False)
TIMED udevadm_settle(): 0.032
Skipping kernel module load, bcache already loaded
Generating device storage trees for path(s): ['/dev/sda', '/dev/sda2']
devname '/sys/class/block/sda' had holders: []
/dev/sda is multipath device partition? False
/dev/sda is multipath device partition? False
/dev/sda is multipath device partition? False
devname '/sys/class/block/sda2' had holders: []
devname '/sys/class/block/sda3' had holders: []
devname '/sys/class/block/sda1' had holders: []
devname '/sys/class/block/sda2' had holders: []
Current device storage tree:
sda
|-- sda2
|-- sda3
`-- sda1
sda2
Shutdown Plan:
{'level': 3, 'device': '/sys/class/block/sda2', 'dev_type': 'partition'}
{'level': 2, 'device': '/sys/class/block/sda3', 'dev_type': 'partition'}
{'level': 2, 'device': '/sys/class/block/sda1', 'dev_type': 'partition'}
{'level': 1, 'device': '/sys/class/block/sda', 'dev_type': 'disk'}
shutdown running on holder type: 'partition' syspath: '/sys/class/block/sda2'
Running command ['lsblk', '--noheadings', '--bytes', '--pairs', '--output=ALIGNMENT,DISC-ALN,DISC-GRAN,DISC-MAX,DISC-ZERO,FSTYPE,GROUP,KNAME,LABEL,LOG-SEC,MAJ:MIN,MIN-IO,MODE,MODEL,MOUNTPOINT,NAME,OPT-IO,OWNER,PHY-SEC,RM,RO,ROTA,RQ-SIZE,SIZE,STATE,TYPE,UUID', '/dev/sda'] with allowed return codes [0] (capture=True)
get_blockdev_sector_size: info:
{
 "sda": {
  "ALIGNMENT": "0",
  "DISC_ALN": "0",
  "DISC_GRAN": "0",
  "DISC_MAX": "0",
  "DISC_ZERO": "0",
  "FSTYPE": "",
  "GROUP": "disk",
  "KNAME": "sda",
  "LABEL": "",
  "LOG_SEC": "512",
  "MAJ_MIN": "8:0",
  "MIN_IO": "512",
  "MODE": "brw-rw----",
  "MODEL": "WDC WD800JD-60LSA5",
  "MOUNTPOINT": "",
  "NAME": "sda",
  "OPT_IO": "0",
  "OWNER": "root",
  "PHY_SEC": "512",
  "RM": "0",
  "RO": "0",
  "ROTA": "1",
  "RQ_SIZE": "2",
  "SIZE": "80026361856",
  "STATE": "running",
  "TYPE": "disk",
  "UUID": "",
  "device_path": "/dev/sda"
 },
 "sda1": {
  "ALIGNMENT": "0",
  "DISC_ALN": "0",
  "DISC_GRAN": "0",
  "DISC_MAX": "0",
  "DISC_ZERO": "0",
  "FSTYPE": "",
  "GROUP": "disk",
  "KNAME": "sda1",
  "LABEL": "",
  "LOG_SEC": "512",
  "MAJ_MIN": "8:1",
  "MIN_IO": "512",
  "MODE": "brw-rw----",
  "MODEL": "",
  "MOUNTPOINT": "",
  "NAME": "sda1",
  "OPT_IO": "0",
  "OWNER": "root",
  "PHY_SEC": "512",
  "RM": "0",
  "RO": "0",
  "ROTA": "1",
  "RQ_SIZE": "2",
  "SIZE": "1048576",
  "STATE": "",
  "TYPE": "part",
  "UUID": "",
  "device_path": "/dev/sda1"
 },
 "sda2": {
  "ALIGNMENT": "0",
  "DISC_ALN": "0",
  "DISC_GRAN": "0",
  "DISC_MAX": "0",
  "DISC_ZERO": "0",
  "FSTYPE": "vfat",
  "GROUP": "disk",
  "KNAME": "sda2",
  "LABEL": "",
  "LOG_SEC": "512",
  "MAJ_MIN": "8:2",
  "MIN_IO": "512",
  "MODE": "brw-rw----",
  "MODEL": "",
  "MOUNTPOINT": "",
  "NAME": "sda2",
  "OPT_IO": "0",
  "OWNER": "root",
  "PHY_SEC": "512",
  "RM": "0",
  "RO": "0",
  "ROTA": "1",
  "RQ_SIZE": "2",
  "SIZE": "537919488",
  "STATE": "",
  "TYPE": "part",
  "UUID": "1745-4691",
  "device_path": "/dev/sda2"
 },
 "sda3": {
  "ALIGNMENT": "0",
  "DISC_ALN": "0",
  "DISC_GRAN": "0",
  "DISC_MAX": "0",
  "DISC_ZERO": "0",
  "FSTYPE": "ext4",
  "GROUP": "disk",
  "KNAME": "sda3",
  "LABEL": "",
  "LOG_SEC": "512",
  "MAJ_MIN": "8:3",
  "MIN_IO": "512",
  "MODE": "brw-rw----",
  "MODEL": "",
  "MOUNTPOINT": "",
  "NAME": "sda3",
  "OPT_IO": "0",
  "OWNER": "root",
  "PHY_SEC": "512",
  "RM": "0",
  "RO": "0",
  "ROTA": "1",
  "RQ_SIZE": "2",
  "SIZE": "79486255104",
  "STATE": "",
  "TYPE": "part",
  "UUID": "536180cc-8d74-42f2-ab2a-8cffc5fdead1",
  "device_path": "/dev/sda3"
 }
}
finish: cmd-install/stage-partitioning/builtin/cmd-block-meta/clear-holders: FAIL: removing previous storage devices
TIMED BLOCK_META: 1.873
finish: cmd-install/stage-partitioning/builtin/cmd-block-meta: FAIL: curtin command block-meta
Traceback (most recent call last):
  File "/snap/ubuntu-desktop-installer/179/lib/python3.8/site-packages/curtin/commands/main.py", line 202, in main
    ret = args.func(args)
  File "/snap/ubuntu-desktop-installer/179/lib/python3.8/site-packages/curtin/log.py", line 97, in wrapper
    return log_time("TIMED %s: " % msg, func, *args, **kwargs)
  File "/snap/ubuntu-desktop-installer/179/lib/python3.8/site-packages/curtin/log.py", line 79, in log_time
    return func(*args, **kwargs)
  File "/snap/ubuntu-desktop-installer/179/lib/python3.8/site-packages/curtin/commands/block_meta.py", line 102, in block_meta
    meta_clear(devices, state.get('report_stack_prefix', ''))
  File "/snap/ubuntu-desktop-installer/179/lib/python3.8/site-packages/curtin/commands/block_meta.py", line 1943, in meta_clear
    clear_holders.clear_holders(devices)
  File "/snap/ubuntu-desktop-installer/179/lib/python3.8/site-packages/curtin/block/clear_holders.py", line 638, in clear_holders
    shutdown_function(dev_info['device'])
  File "/snap/ubuntu-desktop-installer/179/lib/python3.8/site-packages/curtin/block/clear_holders.py", line 244, in wipe_superblock
    if block.is_extended_partition(blockdev):
  File "/snap/ubuntu-desktop-installer/179/lib/python3.8/site-packages/curtin/block/__init__.py", line 1085, in is_extended_partition
    return (get_part_table_type(parent_dev) in ['dos', 'msdos'] and
  File "/snap/ubuntu-desktop-installer/179/lib/python3.8/site-packages/curtin/block/__init__.py", line 1027, in get_part_table_type
    return ('gpt' if check_efi_signature(device) else
  File "/snap/ubuntu-desktop-installer/179/lib/python3.8/site-packages/curtin/block/__init__.py", line 1059, in check_efi_signature
    sector_size = get_blockdev_sector_size(devname)[0]
  File "/snap/ubuntu-desktop-installer/179/lib/python3.8/site-packages/curtin/block/__init__.py", line 786, in get_blockdev_sector_size
    logical = info[parent]['LOG-SEC']
KeyError: 'LOG-SEC'
'LOG-SEC'
curtin: Installation failed with exception: Unexpected error while running command.
Command: ['curtin', 'block-meta', 'simple']
Exit code: 3
Reason: -
Stdout: start: cmd-install/stage-partitioning/builtin/cmd-block-meta: curtin command block-meta
        get_path_to_storage_volume for volume disk-sda({'ptable': 'gpt', 'serial': 'WDC_WD800JD-60LSA5_WD-WMAM9HA31059', 'path': '/dev/sda', 'wipe': 'superblock-recursive', 'preserve': False, 'name': '', 'grub_device': True, 'type': 'disk', 'id': 'disk-sda'})
        Processing serial WDC_WD800JD-60LSA5_WD-WMAM9HA31059 via udev to WDC_WD800JD-60LSA5_WD-WMAM9HA31059
        lookup_disks found: ['ata-WDC_WD800JD-60LSA5_WD-WMAM9HA31059', 'ata-WDC_WD800JD-60LSA5_WD-WMAM9HA31059-part3', 'ata-WDC_WD800JD-60LSA5_WD-WMAM9HA31059-part1', 'ata-WDC_WD800JD-60LSA5_WD-WMAM9HA31059-part2']
        Running command ['udevadm', 'info', '--query=property', '--export', '/dev/sda'] with allowed return codes [0] (capture=True)
        /dev/sda is multipath device? False
        Running command ['udevadm', 'info', '--query=property', '--export', '/dev/sda'] with allowed return codes [0] (capture=True)
        /dev/sda is multipath device member? False
        block.lookup_disk() returning path /dev/sda
        Running command ['partprobe', '/dev/sda'] with allowed return codes [0, 1] (capture=False)
        Running command ['udevadm', 'settle'] with allowed return codes [0] (capture=False)
        TIMED udevadm_settle(): 0.314
        devsync happy - path /dev/sda now exists
        return volume path /dev/sda
        get_path_to_storage_volume for volume partition-1({'device': 'disk-sda', 'size': 80023126016, 'wipe': 'superblock', 'flag': '', 'number': 2, 'preserve': False, 'type': 'partition', 'id': 'partition-1'})
        get_path_to_storage_volume for volume disk-sda({'ptable': 'gpt', 'serial': 'WDC_WD800JD-60LSA5_WD-WMAM9HA31059', 'path': '/dev/sda', 'wipe': 'superblock-recursive', 'preserve': False, 'name': '', 'grub_device': True, 'type': 'disk', 'id': 'disk-sda'})
        Processing serial WDC_WD800JD-60LSA5_WD-WMAM9HA31059 via udev to WDC_WD800JD-60LSA5_WD-WMAM9HA31059
        lookup_disks found: ['ata-WDC_WD800JD-60LSA5_WD-WMAM9HA31059', 'ata-WDC_WD800JD-60LSA5_WD-WMAM9HA31059-part2', 'ata-WDC_WD800JD-60LSA5_WD-WMAM9HA31059-part1', 'ata-WDC_WD800JD-60LSA5_WD-WMAM9HA31059-part3']
        Running command ['udevadm', 'info', '--query=property', '--export', '/dev/sda'] with allowed return codes [0] (capture=True)
        /dev/sda is multipath device? False
        Running command ['udevadm', 'info', '--query=property', '--export', '/dev/sda'] with allowed return codes [0] (capture=True)
        /dev/sda is multipath device member? False
        block.lookup_disk() returning path /dev/sda
        Running command ['partprobe', '/dev/sda'] with allowed return codes [0, 1] (capture=False)
        Running command ['udevadm', 'settle'] with allowed return codes [0] (capture=False)
        TIMED udevadm_settle(): 0.271
        devsync happy - path /dev/sda now exists
        return volume path /dev/sda
        Running command ['partprobe', '/dev/sda'] with allowed return codes [0, 1] (capture=False)
        Running command ['udevadm', 'settle'] with allowed return codes [0] (capture=False)
        TIMED udevadm_settle(): 0.243
        devsync happy - path /dev/sda now exists
        return volume path /dev/sda2
        block-meta: extracted devices to clear: ['/dev/sda', '/dev/sda2']
        Declared block devices: ['/dev/sda', '/dev/sda2']
        clearing devices=['/dev/sda', '/dev/sda2']
        start: cmd-install/stage-partitioning/builtin/cmd-block-meta/clear-holders: removing previous storage devices
        Running command ['mdadm', '--assemble', '--scan', '-v'] with allowed return codes [0, 1, 2] (capture=True)
        mdadm_assemble had unexpected return code
        Running command ['udevadm', 'settle'] with allowed return codes [0] (capture=False)
        TIMED udevadm_settle(): 0.024
        Running command ['pvscan'] with allowed return codes [0] (capture=True)
        Running command ['vgscan'] with allowed return codes [0] (capture=True)
        Running command ['vgchange', '--activate=y'] with allowed return codes [0] (capture=True)
        Running command ['udevadm', 'settle'] with allowed return codes [0] (capture=False)
        TIMED udevadm_settle(): 0.032
        Skipping kernel module load, bcache already loaded
        Generating device storage trees for path(s): ['/dev/sda', '/dev/sda2']
        devname '/sys/class/block/sda' had holders: []
        /dev/sda is multipath device partition? False
        /dev/sda is multipath device partition? False
        /dev/sda is multipath device partition? False
        devname '/sys/class/block/sda2' had holders: []
        devname '/sys/class/block/sda3' had holders: []
        devname '/sys/class/block/sda1' had holders: []
        devname '/sys/class/block/sda2' had holders: []
        Current device storage tree:
        sda
        |-- sda2
        |-- sda3
        `-- sda1
        sda2
        Shutdown Plan:
        {'level': 3, 'device': '/sys/class/block/sda2', 'dev_type': 'partition'}
        {'level': 2, 'device': '/sys/class/block/sda3', 'dev_type': 'partition'}
        {'level': 2, 'device': '/sys/class/block/sda1', 'dev_type': 'partition'}
        {'level': 1, 'device': '/sys/class/block/sda', 'dev_type': 'disk'}
        shutdown running on holder type: 'partition' syspath: '/sys/class/block/sda2'
        Running command ['lsblk', '--noheadings', '--bytes', '--pairs', '--output=ALIGNMENT,DISC-ALN,DISC-GRAN,DISC-MAX,DISC-ZERO,FSTYPE,GROUP,KNAME,LABEL,LOG-SEC,MAJ:MIN,MIN-IO,MODE,MODEL,MOUNTPOINT,NAME,OPT-IO,OWNER,PHY-SEC,RM,RO,ROTA,RQ-SIZE,SIZE,STATE,TYPE,UUID', '/dev/sda'] with allowed return codes [0] (capture=True)
        get_blockdev_sector_size: info:
        {
         "sda": {
          "ALIGNMENT": "0",
          "DISC_ALN": "0",
          "DISC_GRAN": "0",
          "DISC_MAX": "0",
          "DISC_ZERO": "0",
          "FSTYPE": "",
          "GROUP": "disk",
          "KNAME": "sda",
          "LABEL": "",
          "LOG_SEC": "512",
          "MAJ_MIN": "8:0",
          "MIN_IO": "512",
          "MODE": "brw-rw----",
          "MODEL": "WDC WD800JD-60LSA5",
          "MOUNTPOINT": "",
          "NAME": "sda",
          "OPT_IO": "0",
          "OWNER": "root",
          "PHY_SEC": "512",
          "RM": "0",
          "RO": "0",
          "ROTA": "1",
          "RQ_SIZE": "2",
          "SIZE": "80026361856",
          "STATE": "running",
          "TYPE": "disk",
          "UUID": "",
          "device_path": "/dev/sda"
         },
         "sda1": {
          "ALIGNMENT": "0",
          "DISC_ALN": "0",
          "DISC_GRAN": "0",
          "DISC_MAX": "0",
          "DISC_ZERO": "0",
          "FSTYPE": "",
          "GROUP": "disk",
          "KNAME": "sda1",
          "LABEL": "",
          "LOG_SEC": "512",
          "MAJ_MIN": "8:1",
          "MIN_IO": "512",
          "MODE": "brw-rw----",
          "MODEL": "",
          "MOUNTPOINT": "",
          "NAME": "sda1",
          "OPT_IO": "0",
          "OWNER": "root",
          "PHY_SEC": "512",
          "RM": "0",
          "RO": "0",
          "ROTA": "1",
          "RQ_SIZE": "2",
          "SIZE": "1048576",
          "STATE": "",
          "TYPE": "part",
          "UUID": "",
          "device_path": "/dev/sda1"
         },
         "sda2": {
          "ALIGNMENT": "0",
          "DISC_ALN": "0",
          "DISC_GRAN": "0",
          "DISC_MAX": "0",
          "DISC_ZERO": "0",
          "FSTYPE": "vfat",
          "GROUP": "disk",
          "KNAME": "sda2",
          "LABEL": "",
          "LOG_SEC": "512",
          "MAJ_MIN": "8:2",
          "MIN_IO": "512",
          "MODE": "brw-rw----",
          "MODEL": "",
          "MOUNTPOINT": "",
          "NAME": "sda2",
          "OPT_IO": "0",
          "OWNER": "root",
          "PHY_SEC": "512",
          "RM": "0",
          "RO": "0",
          "ROTA": "1",
          "RQ_SIZE": "2",
          "SIZE": "537919488",
          "STATE": "",
          "TYPE": "part",
          "UUID": "1745-4691",
          "device_path": "/dev/sda2"
         },
         "sda3": {
          "ALIGNMENT": "0",
          "DISC_ALN": "0",
          "DISC_GRAN": "0",
          "DISC_MAX": "0",
          "DISC_ZERO": "0",
          "FSTYPE": "ext4",
          "GROUP": "disk",
          "KNAME": "sda3",
          "LABEL": "",
          "LOG_SEC": "512",
          "MAJ_MIN": "8:3",
          "MIN_IO": "512",
          "MODE": "brw-rw----",
          "MODEL": "",
          "MOUNTPOINT": "",
          "NAME": "sda3",
          "OPT_IO": "0",
          "OWNER": "root",
          "PHY_SEC": "512",
          "RM": "0",
          "RO": "0",
          "ROTA": "1",
          "RQ_SIZE": "2",
          "SIZE": "79486255104",
          "STATE": "",
          "TYPE": "part",
          "UUID": "536180cc-8d74-42f2-ab2a-8cffc5fdead1",
          "device_path": "/dev/sda3"
         }
        }
        finish: cmd-install/stage-partitioning/builtin/cmd-block-meta/clear-holders: FAIL: removing previous storage devices
        TIMED BLOCK_META: 1.873
        finish: cmd-install/stage-partitioning/builtin/cmd-block-meta: FAIL: curtin command block-meta
        Traceback (most recent call last):
          File "/snap/ubuntu-desktop-installer/179/lib/python3.8/site-packages/curtin/commands/main.py", line 202, in main
            ret = args.func(args)
          File "/snap/ubuntu-desktop-installer/179/lib/python3.8/site-packages/curtin/log.py", line 97, in wrapper
            return log_time("TIMED %s: " % msg, func, *args, **kwargs)
          File "/snap/ubuntu-desktop-installer/179/lib/python3.8/site-packages/curtin/log.py", line 79, in log_time
            return func(*args, **kwargs)
          File "/snap/ubuntu-desktop-installer/179/lib/python3.8/site-packages/curtin/commands/block_meta.py", line 102, in block_meta
            meta_clear(devices, state.get('report_stack_prefix', ''))
          File "/snap/ubuntu-desktop-installer/179/lib/python3.8/site-packages/curtin/commands/block_meta.py", line 1943, in meta_clear
            clear_holders.clear_holders(devices)
          File "/snap/ubuntu-desktop-installer/179/lib/python3.8/site-packages/curtin/block/clear_holders.py", line 638, in clear_holders
            shutdown_function(dev_info['device'])
          File "/snap/ubuntu-desktop-installer/179/lib/python3.8/site-packages/curtin/block/clear_holders.py", line 244, in wipe_superblock
            if block.is_extended_partition(blockdev):
          File "/snap/ubuntu-desktop-installer/179/lib/python3.8/site-packages/curtin/block/__init__.py", line 1085, in is_extended_partition
            return (get_part_table_type(parent_dev) in ['dos', 'msdos'] and
          File "/snap/ubuntu-desktop-installer/179/lib/python3.8/site-packages/curtin/block/__init__.py", line 1027, in get_part_table_type
            return ('gpt' if check_efi_signature(device) else
          File "/snap/ubuntu-desktop-installer/179/lib/python3.8/site-packages/curtin/block/__init__.py", line 1059, in check_efi_signature
            sector_size = get_blockdev_sector_size(devname)[0]
          File "/snap/ubuntu-desktop-installer/179/lib/python3.8/site-packages/curtin/block/__init__.py", line 786, in get_blockdev_sector_size
            logical = info[parent]['LOG-SEC']
        KeyError: 'LOG-SEC'
        'LOG-SEC'
        
Stderr: ''