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From: Brad McClung
Subject: bug#42244:
Date: Tue, 7 Jul 2020 05:47:07 -0700

$ sudo parted /dev/sdb
GNU Parted 3.3
Using /dev/sdb
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) help                                                            
  align-check TYPE N                       check partition N for TYPE(min|opt) alignment
  help [COMMAND]                           print general help, or help on COMMAND
  mklabel,mktable LABEL-TYPE               create a new disklabel (partition table)
  mkpart PART-TYPE [FS-TYPE] START END     make a partition
  name NUMBER NAME                         name partition NUMBER as NAME
  print [devices|free|list,all|NUMBER]     display the partition table, available devices, free
        space, all found partitions, or a particular partition
  quit                                     exit program
  rescue START END                         rescue a lost partition near START and END
  resizepart NUMBER END                    resize partition NUMBER
  rm NUMBER                                delete partition NUMBER
  select DEVICE                            choose the device to edit
  disk_set FLAG STATE                      change the FLAG on selected device
  disk_toggle [FLAG]                       toggle the state of FLAG on selected device
  set NUMBER FLAG STATE                    change the FLAG on partition NUMBER
  toggle [NUMBER [FLAG]]                   toggle the state of FLAG on partition NUMBER
  unit UNIT                                set the default unit to UNIT
  version                                  display the version number and copyright information of
        GNU Parted
(parted) align-check opt 1
1 aligned
(parted) align-check opt 2
2 aligned
(parted) align-check opt 3
3 not aligned: 97677310s % 2048s != 0s
(parted) align-check opt 4
Error: Partition doesn't exist.
(parted) resizepart 3
Warning: Partition /dev/sdb3 is being u
Brad McClung
sed. Are you sure you want to continue?
Yes/No? no
(parted) align-check opt 5
5 aligned
(parted) print devices
/dev/sdb (120GB)
(parted) print free                                                      
Backtrace has 11 calls on stack:
  11: /lib/x86_64-linux-gnu/libparted.so.2(ped_assert+0x49) [0x7f1212d6e6a9]
  10: /lib/x86_64-linux-gnu/libparted.so.2(+0x236ea) [0x7f1212d846ea]
  9: /lib/x86_64-linux-gnu/libparted.so.2(+0x237e3) [0x7f1212d847e3]
  8: /lib/x86_64-linux-gnu/libparted.so.2(+0x24f4b) [0x7f1212d85f4b]
  7: /lib/x86_64-linux-gnu/libparted.so.2(+0x122fa) [0x7f1212d732fa]
  6: /lib/x86_64-linux-gnu/libparted.so.2(ped_disk_set_flag+0x69) [0x7f1212d73929]
  5: parted(+0x8bcb) [0x563d15d14bcb]
  4: parted(interactive_mode+0x12c) [0x563d15d1acac]
  3: parted(main+0x139b) [0x563d15d1380b]
  2: /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf3) [0x7f1212b160b3]
  1: parted(_start+0x2e) [0x563d15d1389e]

You found a bug in GNU Parted! Here's what you have to do:

Don't panic! The bug has most likely not affected any of your data.
Help us to fix this bug by doing the following:

Check whether the bug has already been fixed by checking
the last version of GNU Parted that you can find at:


Please check this version prior to bug reporting.

If this has not been fixed yet or if you don't know how to check,
please visit the GNU Parted website:


for further information.

Your report should contain the version of this release (3.3)
along with the error message below, the output of

parted DEVICE unit co print unit s print

and the following history of commands you entered.
Also include any additional information about your setup you
consider important.

Assertion (part->disk->dev->sector_size % PED_SECTOR_SIZE_DEFAULT == 0) at
../../../libparted/labels/dos.c:591 in function probe_filesystem_for_geom() failed.


$ sudo fdisk /dev/sdb

Welcome to fdisk (util-linux 2.34).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.

Command (m for help): p
Disk /dev/sdb: 111.81 GiB, 120034123776 bytes, 234441648 sectors
Disk model: SPCC Solid State
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0xfc798011

Device     Boot    Start       End   Sectors  Size Id Type
/dev/sdb1  *        2048    206847    204800  100M  7 HPFS/NTFS/exFAT
/dev/sdb2         206848  97676521  97469674 46.5G  7 HPFS/NTFS/exFAT
/dev/sdb3       97677310 234440983 136763674 65.2G  5 Extended
/dev/sdb5       97677312 234440983 136763672 65.2G 83 Linux

$ sudo hdparm -I /dev/sdb


ATA device, with non-removable media
Model Number:       SPCC Solid State Disk                  
Serial Number:      P1602347000000003975
Firmware Revision:  V2.8    
Media Serial Num:   MM32g16K4CE1MABT5200                    
Media Manufacturer:
Transport:          Serial, ATA8-AST, SATA 1.0a, SATA II Extensions, SATA Rev 2.5, SATA Rev 2.6, SATA Rev 3.0
Used: unknown (minor revision code 0x011b)
Supported: 10 9 8 7 6 5
Likely used: 10
Logical max current
cylinders 16383 16383
heads 16 16
sectors/track 63 63
CHS current addressable sectors:    16514064
LBA    user addressable sectors:   234441648
LBA48  user addressable sectors:   234441648
Logical  Sector size:                   512 bytes
Physical Sector size:                   512 bytes
Logical Sector-0 offset:                  0 bytes
device size with M = 1024*1024:      114473 MBytes
device size with M = 1000*1000:      120034 MBytes (120 GB)
cache/buffer size  = unknown
Nominal Media Rotation Rate: Solid State Device
LBA, IORDY(can be disabled)
Queue depth: 32
Standby timer values: spec'd by Standard, no device specific minimum
R/W multiple sector transfer: Max = 1 Current = 1
Advanced power management level: disabled
DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 udma5 *udma6
    Cycle time: min=120ns recommended=120ns
PIO: pio0 pio1 pio2 pio3 pio4
    Cycle time: no flow control=120ns  IORDY flow control=120ns
Enabled Supported:
  * SMART feature set
  * Power Management feature set
  * Write cache
  * Look-ahead
  * WRITE_BUFFER command
  * READ_BUFFER command
  * NOP cmd
    Advanced Power Management feature set
  * 48-bit Address feature set
  * Mandatory FLUSH_CACHE
  * General Purpose Logging feature set
  * 64-bit World wide name
  * {READ,WRITE}_DMA_EXT_GPL commands
  * Gen1 signaling speed (1.5Gb/s)
  * Gen2 signaling speed (3.0Gb/s)
  * Gen3 signaling speed (6.0Gb/s)
  * Native Command Queueing (NCQ)
  * Host automatic Partial to Slumber transitions
  * Device automatic Partial to Slumber transitions
  * READ_LOG_DMA_EXT equivalent to READ_LOG_EXT
  * DMA Setup Auto-Activate optimization
    Device Sleep (DEVSLP)
  * WRITE BUFFER DMA command
  * READ BUFFER DMA command
  * Data Set Management TRIM supported (limit 8 blocks)
  * Deterministic read ZEROs after TRIM
Logical Unit WWN Device Identifier: 502b2a201d1c1b1a
NAA : 5
IEEE OUI : 02b2a2
Unique ID : 01d1c1b1a
Device Sleep:
DEVSLP Exit Timeout (DETO): 20 ms (drive)
Minimum DEVSLP Assertion Time (MDAT): 10 ms (drive)
Checksum: correct

                                        Disk: /dev/sdb
                   Size: 111.81 GiB, 120034123776 bytes, 234441648 sectors
                              Label: dos, identifier: 0xfc798011

    Device         Boot          Start          End     Sectors    Size   Id Type
    /dev/sdb1      *              2048       206847      204800    100M    7 HPFS/NTFS/exFAT
    /dev/sdb2                   206848     97676521    97469674   46.5G    7 HPFS/NTFS/exFAT
    /dev/sdb3                 97677310    234440983   136763674   65.2G    5 Extended
>>  └─/dev/sdb5               97677312    234440983   136763672   65.2G   83 Linux            

 │ Partition type: Linux (83)                                                               │
 │Filesystem UUID: 2fc7d0a5-e81d-4bac-8e2b-26eb2185519f                                     │
 │     Filesystem: ext4                                                                     │
 │     Mountpoint: / (mounted)                                                              │
      [Bootable]  [ Delete ]  [ Resize ]  [  Quit  ]  [  Type  ]  [  Help  ]  [  Write ]
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