"Cannot find previous partition on disk /dev/sda"

andrew-boatrocker · 28 February 2025 15:46

I’ve been trying to convert some nodes from BIOS to UEFI boot. Every time I try, I get:

An error occured handling 'sda-part2': RuntimeError - Cannot find previous partition on disk /dev/sda
        finish: cmd-install/stage-partitioning/builtin/cmd-block-meta: FAIL: configuring partition: sda-part2

Since it appears to be a partition error, I have tried to wipe any partitions in rescue mode, but I still get the same error:

$ sudo dd if=/dev/zero of=/dev/sda bs=512 count=64K
65536+0 records in
65536+0 records out
33554432 bytes (34 MB, 32 MiB) copied, 0.539459 s, 62.2 MB/s

$ sudo dd if=/dev/zero of=/dev/sda bs=512 count=64K seek=468796592
65536+0 records in
65536+0 records out
33554432 bytes (34 MB, 32 MiB) copied, 0.546694 s, 61.4 MB/s

$ sudo gdisk /dev/sda
GPT fdisk (gdisk) version 1.0.8

Partition table scan:
  MBR: not present
  BSD: not present
  APM: not present
  GPT: not present

Creating new GPT entries in memory.
Command (? for help): x
Expert command (? for help): z
About to wipe out GPT on /dev/sda. Proceed? (Y/N): y
GPT data structures destroyed! You may now partition the disk using fdisk or
other utilities.
Blank out MBR? (Y/N): y

$ sudo sync

Here’s the full installation output:

curtin: Installation started. (23.1.1-1100-g95345797-0ubuntu1~ubuntu22.04.1)
third party drivers not installed or necessary.
start: cmd-install/stage-partitioning/builtin/cmd-block-meta: curtin command block-meta
get_path_to_storage_volume for volume sda({'grub_device': True, 'id': 'sda', 'model': 'SSDSC2KG240G8R', 'name': 'sda', 'ptable': 'gpt', 'serial': '55cd2e41509c75c8', 'type': 'disk', 'wipe': 'superblock'})
Processing serial 55cd2e41509c75c8 via udev to 55cd2e41509c75c8
lookup_disks found: ['wwn-0x55cd2e41509c75c8', 'scsi-355cd2e41509c75c8']
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(): 0.115
devsync happy - path /dev/sda now exists
return volume path /dev/sda
get_path_to_storage_volume for volume sda-part2({'device': 'sda', 'id': 'sda-part2', 'name': 'sda-part2', 'number': 2, 'size': '240048406528B', 'type': 'partition', 'uuid': '5d937cef-3b7d-4350-b3cb-3713bc65a015', 'wipe': 'superblock'})
get_path_to_storage_volume for volume sda({'grub_device': True, 'id': 'sda', 'model': 'SSDSC2KG240G8R', 'name': 'sda', 'ptable': 'gpt', 'serial': '55cd2e41509c75c8', 'type': 'disk', 'wipe': 'superblock'})
Processing serial 55cd2e41509c75c8 via udev to 55cd2e41509c75c8
lookup_disks found: ['wwn-0x55cd2e41509c75c8', 'scsi-355cd2e41509c75c8']
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(): 0.099
devsync happy - path /dev/sda now exists
return volume path /dev/sda
block-meta: extracted devices to clear: ['/dev/sda']
Declared block devices: ['/dev/sda']
clearing devices=['/dev/sda']
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 scan results:

mdadm: looking for devices for further assembly
mdadm: no recogniseable superblock on /dev/sda
mdadm: no recogniseable superblock on /dev/loop3
mdadm: no recogniseable superblock on /dev/loop2
mdadm: no recogniseable superblock on /dev/loop1
mdadm: no recogniseable superblock on /dev/loop0
mdadm: No arrays found in config file or automatically

Running command ['mdadm', '--detail', '--scan', '-v'] with allowed return codes [0, 1] (capture=True)
mdadm detail scan after assemble:


Running command ['udevadm', 'settle'] with allowed return codes [0] (capture=False)
TIMED udevadm_settle(): 0.012
Detected multipath support, reload maps
Running command ['multipath', '-r'] with allowed return codes [0] (capture=False)
Verifying /dev/mapper/mpath* files are symlinks
Running command ['dmsetup', 'ls', '-o', 'blkdevname'] with allowed return codes [0] (capture=True)
Running command ['pvscan', '--config', 'devices{ filter = [ "a|/dev/mapper/mpath.*|", "a|/dev/mapper/dm_crypt-.*|", "r|.*|" ] }'] with allowed return codes [0] (capture=True)
Running command ['vgscan', '--config', 'devices{ filter = [ "a|/dev/mapper/mpath.*|", "a|/dev/mapper/dm_crypt-.*|", "r|.*|" ] }'] with allowed return codes [0] (capture=True)
Running command ['vgchange', '--activate=y', '--config', 'devices{ filter = [ "a|/dev/mapper/mpath.*|", "a|/dev/mapper/dm_crypt-.*|", "r|.*|" ] }'] with allowed return codes [0] (capture=True)
Running command ['udevadm', 'settle'] with allowed return codes [0] (capture=False)
TIMED udevadm_settle(): 0.028
Loading kernel module bcache via modprobe
Running command ['modprobe', '--use-blacklist', 'bcache'] with allowed return codes [0] (capture=False)
Generating device storage trees for path(s): ['/dev/sda']
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
Current device storage tree:
sda
Shutdown Plan:
{'level': 0, 'device': '/sys/class/block/sda', 'dev_type': 'disk'}
shutdown running on holder type: 'disk' syspath: '/sys/class/block/sda'
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": "4096",
  "DISC-MAX": "134217216",
  "DISC-ZERO": "0",
  "FSTYPE": "",
  "GROUP": "disk",
  "KNAME": "sda",
  "LABEL": "",
  "LOG-SEC": "512",
  "MAJ:MIN": "8:0",
  "MIN-IO": "4096",
  "MODE": "brw-rw----",
  "MODEL": "SSDSC2KG240G8R",
  "MOUNTPOINT": "",
  "NAME": "sda",
  "OPT-IO": "0",
  "OWNER": "root",
  "PHY-SEC": "4096",
  "RM": "0",
  "RO": "0",
  "ROTA": "0",
  "RQ-SIZE": "256",
  "SIZE": "240057409536",
  "STATE": "running",
  "TYPE": "disk",
  "UUID": "",
  "device_path": "/dev/sda"
 }
}
get_blockdev_sector_size: (log=512, phys=4096)
Running command ['fdasd', '--table', '/dev/sda'] with allowed return codes [0] (capture=False)
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'] with allowed return codes [0] (capture=True)
Checking if /dev/sda is a swap device
Found swap magic: b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
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
wiping superblock on /dev/sda
wiping /dev/sda attempt 1/4
Running command ['wipefs', '--all', '--force', '/dev/sda'] with allowed return codes [0] (capture=False)
wiping 1M on /dev/sda at offsets [0, -1048576]
successfully wiped device /dev/sda on attempt 1/4
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
finish: cmd-install/stage-partitioning/builtin/cmd-block-meta/clear-holders: SUCCESS: removing previous storage devices
blockmeta: detected storage config, using mode=custom
start: cmd-install/stage-partitioning/builtin/cmd-block-meta: configuring disk: sda
get_path_to_storage_volume for volume sda({'grub_device': True, 'id': 'sda', 'model': 'SSDSC2KG240G8R', 'name': 'sda', 'ptable': 'gpt', 'serial': '55cd2e41509c75c8', 'type': 'disk', 'wipe': 'superblock'})
Processing serial 55cd2e41509c75c8 via udev to 55cd2e41509c75c8
lookup_disks found: ['wwn-0x55cd2e41509c75c8', 'scsi-355cd2e41509c75c8']
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(): 0.087
devsync happy - path /dev/sda now exists
return volume path /dev/sda
Running command ['wipefs', '--all', '--force', '/dev/sda'] with allowed return codes [0] (capture=False)
wiping 1M on /dev/sda at offsets [0, -1048576]
labeling device: '/dev/sda' with 'gpt' partition table
Running command ['wipefs', '--all', '--force', '/dev/sda'] with allowed return codes [0] (capture=False)
wiping 1M on /dev/sda at offsets [0, -1048576]
devname '/dev/sda' had holders: []
get_path_to_storage_volume for volume sda({'grub_device': True, 'id': 'sda', 'model': 'SSDSC2KG240G8R', 'name': 'sda', 'ptable': 'gpt', 'serial': '55cd2e41509c75c8', 'type': 'disk', 'wipe': 'superblock'})
Processing serial 55cd2e41509c75c8 via udev to 55cd2e41509c75c8
lookup_disks found: ['wwn-0x55cd2e41509c75c8', 'scsi-355cd2e41509c75c8']
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(): 0.090
devsync happy - path /dev/sda now exists
return volume path /dev/sda
Running command ['blkid', '-o', 'export', '/dev/sda'] with allowed return codes [0, 2] (capture=True)
Running command ['udevadm', 'info', '--query=property', '--export', '/dev/sda'] with allowed return codes [0] (capture=True)
Creating dname udev rule '['SUBSYSTEM=="block"', 'ACTION=="add|change"', 'ENV{DEVTYPE}=="disk"', 'ENV{ID_WWN_WITH_EXTENSION}=="0x55cd2e41509c75c8"', 'ENV{ID_WWN}=="0x55cd2e41509c75c8"', 'ENV{ID_SERIAL}=="355cd2e41509c75c8"', 'ENV{ID_SERIAL_SHORT}=="55cd2e41509c75c8"', 'SYMLINK+="disk/by-dname/sda"\n']'
Creating dname udev rule '['SUBSYSTEM=="block"', 'ACTION=="add|change"', 'ENV{DEVTYPE}=="partition"', 'ENV{ID_WWN_WITH_EXTENSION}=="0x55cd2e41509c75c8"', 'ENV{ID_WWN}=="0x55cd2e41509c75c8"', 'ENV{ID_SERIAL}=="355cd2e41509c75c8"', 'ENV{ID_SERIAL_SHORT}=="55cd2e41509c75c8"', 'SYMLINK+="disk/by-dname/sda-part%n"\n']'
finish: cmd-install/stage-partitioning/builtin/cmd-block-meta: SUCCESS: configuring disk: sda
start: cmd-install/stage-partitioning/builtin/cmd-block-meta: configuring partition: sda-part2
get_path_to_storage_volume for volume sda({'grub_device': True, 'id': 'sda', 'model': 'SSDSC2KG240G8R', 'name': 'sda', 'ptable': 'gpt', 'serial': '55cd2e41509c75c8', 'type': 'disk', 'wipe': 'superblock'})
Processing serial 55cd2e41509c75c8 via udev to 55cd2e41509c75c8
lookup_disks found: ['wwn-0x55cd2e41509c75c8', 'scsi-355cd2e41509c75c8']
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(): 0.099
devsync happy - path /dev/sda now exists
return volume path /dev/sda
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": "4096",
  "DISC-MAX": "134217216",
  "DISC-ZERO": "0",
  "FSTYPE": "",
  "GROUP": "disk",
  "KNAME": "sda",
  "LABEL": "",
  "LOG-SEC": "512",
  "MAJ:MIN": "8:0",
  "MIN-IO": "4096",
  "MODE": "brw-rw----",
  "MODEL": "SSDSC2KG240G8R",
  "MOUNTPOINT": "",
  "NAME": "sda",
  "OPT-IO": "0",
  "OWNER": "root",
  "PHY-SEC": "4096",
  "RM": "0",
  "RO": "0",
  "ROTA": "0",
  "RQ-SIZE": "256",
  "SIZE": "240057409536",
  "STATE": "running",
  "TYPE": "disk",
  "UUID": "",
  "device_path": "/dev/sda"
 }
}
get_blockdev_sector_size: (log=512, phys=4096)
sda logical_block_size_bytes: 512
An error occured handling 'sda-part2': RuntimeError - Cannot find previous partition on disk /dev/sda
finish: cmd-install/stage-partitioning/builtin/cmd-block-meta: FAIL: configuring partition: sda-part2
TIMED BLOCK_META: 1.949
finish: cmd-install/stage-partitioning/builtin/cmd-block-meta: FAIL: curtin command block-meta
Traceback (most recent call last):
  File "/curtin/curtin/commands/main.py", line 202, in main
    ret = args.func(args)
  File "/curtin/curtin/log.py", line 97, in wrapper
    return log_time("TIMED %s: " % msg, func, *args, **kwargs)
  File "/curtin/curtin/log.py", line 79, in log_time
    return func(*args, **kwargs)
  File "/curtin/curtin/commands/block_meta.py", line 124, in block_meta
    return meta_custom(args)
  File "/curtin/curtin/commands/block_meta.py", line 2209, in meta_custom
    handler(command, storage_config_dict, context)
  File "/curtin/curtin/commands/block_meta.py", line 1024, in partition_handler
    raise RuntimeError(
RuntimeError: Cannot find previous partition on disk /dev/sda
Cannot find previous partition on disk /dev/sda
curtin: Installation failed with exception: Unexpected error while running command.
Command: ['curtin', 'block-meta', 'custom']
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 sda({'grub_device': True, 'id': 'sda', 'model': 'SSDSC2KG240G8R', 'name': 'sda', 'ptable': 'gpt', 'serial': '55cd2e41509c75c8', 'type': 'disk', 'wipe': 'superblock'})
        Processing serial 55cd2e41509c75c8 via udev to 55cd2e41509c75c8
        lookup_disks found: ['wwn-0x55cd2e41509c75c8', 'scsi-355cd2e41509c75c8']
        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(): 0.115
        devsync happy - path /dev/sda now exists
        return volume path /dev/sda
        get_path_to_storage_volume for volume sda-part2({'device': 'sda', 'id': 'sda-part2', 'name': 'sda-part2', 'number': 2, 'size': '240048406528B', 'type': 'partition', 'uuid': '5d937cef-3b7d-4350-b3cb-3713bc65a015', 'wipe': 'superblock'})
        get_path_to_storage_volume for volume sda({'grub_device': True, 'id': 'sda', 'model': 'SSDSC2KG240G8R', 'name': 'sda', 'ptable': 'gpt', 'serial': '55cd2e41509c75c8', 'type': 'disk', 'wipe': 'superblock'})
        Processing serial 55cd2e41509c75c8 via udev to 55cd2e41509c75c8
        lookup_disks found: ['wwn-0x55cd2e41509c75c8', 'scsi-355cd2e41509c75c8']
        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(): 0.099
        devsync happy - path /dev/sda now exists
        return volume path /dev/sda
        block-meta: extracted devices to clear: ['/dev/sda']
        Declared block devices: ['/dev/sda']
        clearing devices=['/dev/sda']
        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 scan results:
        
        mdadm: looking for devices for further assembly
        mdadm: no recogniseable superblock on /dev/sda
        mdadm: no recogniseable superblock on /dev/loop3
        mdadm: no recogniseable superblock on /dev/loop2
        mdadm: no recogniseable superblock on /dev/loop1
        mdadm: no recogniseable superblock on /dev/loop0
        mdadm: No arrays found in config file or automatically
        
        Running command ['mdadm', '--detail', '--scan', '-v'] with allowed return codes [0, 1] (capture=True)
        mdadm detail scan after assemble:
        
        
        Running command ['udevadm', 'settle'] with allowed return codes [0] (capture=False)
        TIMED udevadm_settle(): 0.012
        Detected multipath support, reload maps
        Running command ['multipath', '-r'] with allowed return codes [0] (capture=False)
        Verifying /dev/mapper/mpath* files are symlinks
        Running command ['dmsetup', 'ls', '-o', 'blkdevname'] with allowed return codes [0] (capture=True)
        Running command ['pvscan', '--config', 'devices{ filter = [ "a|/dev/mapper/mpath.*|", "a|/dev/mapper/dm_crypt-.*|", "r|.*|" ] }'] with allowed return codes [0] (capture=True)
        Running command ['vgscan', '--config', 'devices{ filter = [ "a|/dev/mapper/mpath.*|", "a|/dev/mapper/dm_crypt-.*|", "r|.*|" ] }'] with allowed return codes [0] (capture=True)
        Running command ['vgchange', '--activate=y', '--config', 'devices{ filter = [ "a|/dev/mapper/mpath.*|", "a|/dev/mapper/dm_crypt-.*|", "r|.*|" ] }'] with allowed return codes [0] (capture=True)
        Running command ['udevadm', 'settle'] with allowed return codes [0] (capture=False)
        TIMED udevadm_settle(): 0.028
        Loading kernel module bcache via modprobe
        Running command ['modprobe', '--use-blacklist', 'bcache'] with allowed return codes [0] (capture=False)
        Generating device storage trees for path(s): ['/dev/sda']
        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
        Current device storage tree:
        sda
        Shutdown Plan:
        {'level': 0, 'device': '/sys/class/block/sda', 'dev_type': 'disk'}
        shutdown running on holder type: 'disk' syspath: '/sys/class/block/sda'
        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": "4096",
          "DISC-MAX": "134217216",
          "DISC-ZERO": "0",
          "FSTYPE": "",
          "GROUP": "disk",
          "KNAME": "sda",
          "LABEL": "",
          "LOG-SEC": "512",
          "MAJ:MIN": "8:0",
          "MIN-IO": "4096",
          "MODE": "brw-rw----",
          "MODEL": "SSDSC2KG240G8R",
          "MOUNTPOINT": "",
          "NAME": "sda",
          "OPT-IO": "0",
          "OWNER": "root",
          "PHY-SEC": "4096",
          "RM": "0",
          "RO": "0",
          "ROTA": "0",
          "RQ-SIZE": "256",
          "SIZE": "240057409536",
          "STATE": "running",
          "TYPE": "disk",
          "UUID": "",
          "device_path": "/dev/sda"
         }
        }
        get_blockdev_sector_size: (log=512, phys=4096)
        Running command ['fdasd', '--table', '/dev/sda'] with allowed return codes [0] (capture=False)
        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'] with allowed return codes [0] (capture=True)
        Checking if /dev/sda is a swap device
        Found swap magic: b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
        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
        wiping superblock on /dev/sda
        wiping /dev/sda attempt 1/4
        Running command ['wipefs', '--all', '--force', '/dev/sda'] with allowed return codes [0] (capture=False)
        wiping 1M on /dev/sda at offsets [0, -1048576]
        successfully wiped device /dev/sda on attempt 1/4
        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
        finish: cmd-install/stage-partitioning/builtin/cmd-block-meta/clear-holders: SUCCESS: removing previous storage devices
        blockmeta: detected storage config, using mode=custom
        start: cmd-install/stage-partitioning/builtin/cmd-block-meta: configuring disk: sda
        get_path_to_storage_volume for volume sda({'grub_device': True, 'id': 'sda', 'model': 'SSDSC2KG240G8R', 'name': 'sda', 'ptable': 'gpt', 'serial': '55cd2e41509c75c8', 'type': 'disk', 'wipe': 'superblock'})
        Processing serial 55cd2e41509c75c8 via udev to 55cd2e41509c75c8
        lookup_disks found: ['wwn-0x55cd2e41509c75c8', 'scsi-355cd2e41509c75c8']
        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(): 0.087
        devsync happy - path /dev/sda now exists
        return volume path /dev/sda
        Running command ['wipefs', '--all', '--force', '/dev/sda'] with allowed return codes [0] (capture=False)
        wiping 1M on /dev/sda at offsets [0, -1048576]
        labeling device: '/dev/sda' with 'gpt' partition table
        Running command ['wipefs', '--all', '--force', '/dev/sda'] with allowed return codes [0] (capture=False)
        wiping 1M on /dev/sda at offsets [0, -1048576]
        devname '/dev/sda' had holders: []
        get_path_to_storage_volume for volume sda({'grub_device': True, 'id': 'sda', 'model': 'SSDSC2KG240G8R', 'name': 'sda', 'ptable': 'gpt', 'serial': '55cd2e41509c75c8', 'type': 'disk', 'wipe': 'superblock'})
        Processing serial 55cd2e41509c75c8 via udev to 55cd2e41509c75c8
        lookup_disks found: ['wwn-0x55cd2e41509c75c8', 'scsi-355cd2e41509c75c8']
        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(): 0.090
        devsync happy - path /dev/sda now exists
        return volume path /dev/sda
        Running command ['blkid', '-o', 'export', '/dev/sda'] with allowed return codes [0, 2] (capture=True)
        Running command ['udevadm', 'info', '--query=property', '--export', '/dev/sda'] with allowed return codes [0] (capture=True)
        Creating dname udev rule '['SUBSYSTEM=="block"', 'ACTION=="add|change"', 'ENV{DEVTYPE}=="disk"', 'ENV{ID_WWN_WITH_EXTENSION}=="0x55cd2e41509c75c8"', 'ENV{ID_WWN}=="0x55cd2e41509c75c8"', 'ENV{ID_SERIAL}=="355cd2e41509c75c8"', 'ENV{ID_SERIAL_SHORT}=="55cd2e41509c75c8"', 'SYMLINK+="disk/by-dname/sda"\n']'
        Creating dname udev rule '['SUBSYSTEM=="block"', 'ACTION=="add|change"', 'ENV{DEVTYPE}=="partition"', 'ENV{ID_WWN_WITH_EXTENSION}=="0x55cd2e41509c75c8"', 'ENV{ID_WWN}=="0x55cd2e41509c75c8"', 'ENV{ID_SERIAL}=="355cd2e41509c75c8"', 'ENV{ID_SERIAL_SHORT}=="55cd2e41509c75c8"', 'SYMLINK+="disk/by-dname/sda-part%n"\n']'
        finish: cmd-install/stage-partitioning/builtin/cmd-block-meta: SUCCESS: configuring disk: sda
        start: cmd-install/stage-partitioning/builtin/cmd-block-meta: configuring partition: sda-part2
        get_path_to_storage_volume for volume sda({'grub_device': True, 'id': 'sda', 'model': 'SSDSC2KG240G8R', 'name': 'sda', 'ptable': 'gpt', 'serial': '55cd2e41509c75c8', 'type': 'disk', 'wipe': 'superblock'})
        Processing serial 55cd2e41509c75c8 via udev to 55cd2e41509c75c8
        lookup_disks found: ['wwn-0x55cd2e41509c75c8', 'scsi-355cd2e41509c75c8']
        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(): 0.099
        devsync happy - path /dev/sda now exists
        return volume path /dev/sda
        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": "4096",
          "DISC-MAX": "134217216",
          "DISC-ZERO": "0",
          "FSTYPE": "",
          "GROUP": "disk",
          "KNAME": "sda",
          "LABEL": "",
          "LOG-SEC": "512",
          "MAJ:MIN": "8:0",
          "MIN-IO": "4096",
          "MODE": "brw-rw----",
          "MODEL": "SSDSC2KG240G8R",
          "MOUNTPOINT": "",
          "NAME": "sda",
          "OPT-IO": "0",
          "OWNER": "root",
          "PHY-SEC": "4096",
          "RM": "0",
          "RO": "0",
          "ROTA": "0",
          "RQ-SIZE": "256",
          "SIZE": "240057409536",
          "STATE": "running",
          "TYPE": "disk",
          "UUID": "",
          "device_path": "/dev/sda"
         }
        }
        get_blockdev_sector_size: (log=512, phys=4096)
        sda logical_block_size_bytes: 512
        An error occured handling 'sda-part2': RuntimeError - Cannot find previous partition on disk /dev/sda
        finish: cmd-install/stage-partitioning/builtin/cmd-block-meta: FAIL: configuring partition: sda-part2
        TIMED BLOCK_META: 1.949
        finish: cmd-install/stage-partitioning/builtin/cmd-block-meta: FAIL: curtin command block-meta
        Traceback (most recent call last):
          File "/curtin/curtin/commands/main.py", line 202, in main
            ret = args.func(args)
          File "/curtin/curtin/log.py", line 97, in wrapper
            return log_time("TIMED %s: " % msg, func, *args, **kwargs)
          File "/curtin/curtin/log.py", line 79, in log_time
            return func(*args, **kwargs)
          File "/curtin/curtin/commands/block_meta.py", line 124, in block_meta
            return meta_custom(args)
          File "/curtin/curtin/commands/block_meta.py", line 2209, in meta_custom
            handler(command, storage_config_dict, context)
          File "/curtin/curtin/commands/block_meta.py", line 1024, in partition_handler
            raise RuntimeError(
        RuntimeError: Cannot find previous partition on disk /dev/sda
        Cannot find previous partition on disk /dev/sda
        
Stderr: ''

This happens no matter which image we try to install, including the default Ubuntu 22 image.

pjonason · 28 February 2025 17:04

Have you recommissioned after the change, before the deploy?

andrew-boatrocker · 28 February 2025 17:55

I did not recommission, no. But I did find that this works:

Put machine in “Ready” mode.
Click on Storage tab.
Beside each entry in the Filesystems table, click the arrow under ACTIONS and Remove Filesystem.
Once all filesystems are removed, click Change Storage Layout and pick Flat.

I’ll try a recommission next.

andrew-boatrocker · 28 February 2025 19:34

Recommissioning also worked. Thanks!

system · 2 March 2025 19:35

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