Other How to mount such partition

blind0ne

blind0ne

Disk /dev/sdb: 119,25 GiB, 128035676160 bytes, 250069680 sectors
Disk model: JAJS600M128C
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: 0x00000000

Device Boot Start End Sectors Size Id Type
/dev/sdb1 1 250069679 250069679 119,2G 83 Linux
 
How to mount such partition
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Maybe you just used the wrong word but it is important to realise that FreeBSD cannot mount a partition. In general FreeBSD can only mount a known filesystem that is placed somewhere on a storage device such as in a partition. See for example: 3.7.2. Using mount(8)

A known filesystem is a filesystem that is native or basic to FreeBSD (UFS or ZFS) and for which FreeBSD has a driver. Or a known filesystem is a filesystem that is not native or basic to FreeBSD but, for which there is a special driver available that gives FreeBSD access to that non-native filesystem, for example NTFS or ext3.
 
Erichans said:
… In general FreeBSD can only mount a known filesystem that is placed somewhere on a storage device such as in a partition. …
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blind0ne you might like to install sysutils/lsblk, I find it the easiest way to visualise (in a terminal) the partitions of a device.

Two examples. First, my internal hard disk drive ada0:

Code: 
% lsblk ada0
DEVICE         MAJ:MIN SIZE TYPE                                          LABEL MOUNT
ada0             0:119 932G GPT                                               - -
  ada0p1         0:121 260M efi                                    gpt/efiboot0 -
  <FREE>         -:-   1.0M -                                                 - -
  ada0p2         0:123  16G freebsd-swap                              gpt/swap0 SWAP
  ada0p2.eli     2:69   16G freebsd-swap                                      - SWAP
  ada0p3         0:125 915G freebsd-zfs                                gpt/zfs0 <ZFS>
  ada0p3.eli     0:131 915G -                                                 - -
  <FREE>         -:-   708K -                                                 - -
%

A USB flash drive that is partitioned, just one partition. Whilst the file system in that partition is mounted:

Code: 
% lsblk da4
DEVICE         MAJ:MIN SIZE TYPE                                          LABEL MOUNT
da4              0:189 3.7G GPT                                               - -
  <FREE>         -:-    47K -                                                 - -
  da4p1          0:190 3.7G ms-basic-data                             gpt/Basic /media/Verbatim_STORE_N_GO_070B29D2DF235960_p1
  <FREE>         -:-   1.5M -                                                 - -
%

After using KDE Plasma to Safely remove the Basic data partition:

Code: 
% lsblk da4
DEVICE         MAJ:MIN SIZE TYPE                                          LABEL MOUNT
da4              2:85  3.7G GPT                                               - -
  <FREE>         -:-    47K -                                                 - -
  da4p1          0:173 3.7G ms-basic-data          gpt/Basic%20data%20partition -
  <FREE>         -:-   1.5M -                                                 - -
%

(Technically: it's not removing the partition, it's un-mounting the file system in readiness for someone to remove the drive from the USB port. The phrases in italics are what's presented by Plasma for a partition of this type; "Safely remove" should be familiar to users of Windows, and so on.)
 
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