Re: Disk partition not recognized

On 21/12/21 18:04 Rob Whitlock wrote:
> I have two disks, one an MBR partitioned 1TB external SSD, and the other a
> GPT partitioned 5TB external HDD. Both have a single ExFAT partition on
> them and both have the same contents. Both show up as sd1 under "sysctl
> hw.disknames" (when plugged in one at a time, that is). I am able to mount
> the MBR partitioned SSD with the command
>
> mount.exfat-fuse /dev/sd1i /mnt
>
> however when I try the same command with the GPT partitioned HDD I get the
> error
>
> FUSE exfat 1.2.8
> ERROR: failed to open '/dev/sd1i': Device not configured.
>
> I checked that the /dev/sd1i block device exists. I am running OpenBSD 6.9.
> Here's the output of disklabel sd1
>
> # /dev/rsd1c:
> type: SCSI
> disk: SCSI disk
> label: Expansion Desk
> duid: 0000000000000000
> flags:
> bytes/sector: 512
> sectors/track: 63
> tracks/cylinder: 255
> sectors/cylinder: 16065
> cylinders: 608001
> total sectors: 9767541167
> boundstart: 0
> boundend: 9767541167
> drivedata: 0
>
> 16 partitions:
> # size offset fstype [fsize bsize cpg]
> c: 9767541167 0 unused
>
>
> Here's the output of fdisk -v sd1
> Primary GPT:
> Disk: sd1 Usable LBA: 34 to 9767541133 [9767541167 Sectors]
> GUID: 570ab069-1869-44ed-911b-a568af1275ff
> #: type [ start: size ]
> guid name
> ------------------------------------------------------------------------
> 0: EFI Sys [ 40: 409600 ]
> a4bd4c86-177d-4e02-a9f9-afc51ade8d87 EFI System Partition
>
> 1: FAT12 [ 411648: 9767129088 ]
> 7157c7e5-978f-4a43-96af-fa6648710488
>
>
> Secondary GPT:
> Disk: sd1 Usable LBA: 34 to 9767541133 [9767541167 Sectors]
> GUID: 570ab069-1869-44ed-911b-a568af1275ff
> #: type [ start: size ]
> guid name
> ------------------------------------------------------------------------
> 0: EFI Sys [ 40: 409600 ]
> a4bd4c86-177d-4e02-a9f9-afc51ade8d87 EFI System Partition
>
> 1: FAT12 [ 411648: 9767129088 ]
> 7157c7e5-978f-4a43-96af-fa6648710488
>
>
> MBR:
> Disk: sd1 geometry: 267349/255/63 [4294961685 Sectors]
> Offset: 0 Signature: 0xAA55
> Starting Ending LBA Info:
> #: id C H S - C H S [ start: size ]
> -------------------------------------------------------------------------------
> 0: EE 0 0 2 - 267349 89 3 [ 1: 4294967294 ] EFI GPT
>
> 1: 00 0 0 0 - 0 0 0 [ 0: 0 ] unused
>
> 2: 00 0 0 0 - 0 0 0 [ 0: 0 ] unused
>
> 3: 00 0 0 0 - 0 0 0 [ 0: 0 ] unused
>
>
> A problem seems to be that there is no disklabel entry for the ExFAT
> partition. Additionally, xxd successfully reads the first few sectors of
> /dev/sd1c so I don't think the hardware is the issue.
>
> How can I mount the HDD ExFAT partition?
>
> Thanks!
>
> Rob