Solved How determine the filesystem of an unmounted device?

Someone

Someone

I try to mount an SD card:
Code: 
mount -t msdosfs /dev/mmcsd0 /mnt/exfat
and it gives
Code: 
mount_msdosfs: /dev/mmcsd0: Invalid argument
Dmesg gives
Code: 
mmc0: <MMC/SD bus> on sdhci_pci0
mmcsd0: 128GB <SDHC SK128 8.6 SN 2CF116F7 MFG 07/2025 by 3 SD> at mmc0 50.0MHz/4bit/65535-block
mmc0: detached
mmc0: <MMC/SD bus> on sdhci_pci0
mmcsd0: 128GB <SDHC SK128 8.6 SN 2CF116F7 MFG 07/2025 by 3 SD> at mmc0 50.0MHz/4bit/65535-block
Also
Code: 
mount -t ntfs-3g /dev/mmcsd0 /mnt/exfat
gives the same error

file -s /dev/mmcsd0 gives
Code: 
/dev/mmcsd0: DOS/MBR boot sector; partition 1 : ID=0x7, start-CHS (0x2,10,9), end-CHS (0x3ff,254,63), startsector 32768, 249966592 sectors, extended partition table (last)

I have fusefs.ko loaded too.
 
It looks like the SD card has a partition table, so you need to mount a partition instead of the device itself.
What is the output of gpart show mmcsd0 and gpart list mmcsd0?
 
bsdcode said:
It looks like the SD card has a partition table, so you need to mount a partition instead of the device itself.
What is the output of gpart show mmcsd0 and gpart list mmcsd0?
Click to expand...
Code: 
root@FreeBSD:/home/kostas # gpart show mmcsd0
=>       63  249999297  mmcsd0  MBR  (119G)
         63      32705          - free -  (16M)
      32768  249966592       1  ntfs  (119G)

root@FreeBSD:/home/kostas # gpart list mmcsd0
Geom name: mmcsd0
modified: false
state: OK
fwheads: 255
fwsectors: 63
last: 249999359
first: 63
entries: 4
scheme: MBR
Providers:
1. Name: mmcsd0s1
   Mediasize: 127982895104 (119G)
   Sectorsize: 512
   Stripesize: 4194304
   Stripeoffset: 0
   Mode: r0w0e0
   efimedia: HD(1,MBR,00000000,0x8000,0xee63000)
   rawtype: 7
   length: 127982895104
   offset: 16777216
   type: ntfs
   index: 1
   end: 249999359
   start: 32768
Consumers:
1. Name: mmcsd0
   Mediasize: 127999672320 (119G)
   Sectorsize: 512
   Stripesize: 4194304
   Stripeoffset: 0
   Mode: r0w0e0
there is also a /dev/mmcsd0s1 device
 
Someone said:
Code: 
root@FreeBSD:/home/kostas # gpart show mmcsd0
=>       63  249999297  mmcsd0  MBR  (119G)
         63      32705          - free -  (16M)
      32768  249966592       1  ntfs  (119G)

root@FreeBSD:/home/kostas # gpart list mmcsd0
Geom name: mmcsd0
modified: false
state: OK
fwheads: 255
fwsectors: 63
last: 249999359
first: 63
entries: 4
scheme: MBR
Providers:
1. Name: mmcsd0s1
   Mediasize: 127982895104 (119G)
   Sectorsize: 512
   Stripesize: 4194304
   Stripeoffset: 0
   Mode: r0w0e0
   efimedia: HD(1,MBR,00000000,0x8000,0xee63000)
   rawtype: 7
   length: 127982895104
   offset: 16777216
   type: ntfs
   index: 1
   end: 249999359
   start: 32768
Consumers:
1. Name: mmcsd0
   Mediasize: 127999672320 (119G)
   Sectorsize: 512
   Stripesize: 4194304
   Stripeoffset: 0
   Mode: r0w0e0
there is also a /dev/mmcsd0s1 device
Click to expand...

Alright, try to mount /dev/mmcsd0s1, probably with
Code: 
mount -t ntfs-3g /dev/mmcsd0s1 /mnt/exfat
 
bsdcode said:
Alright, try to mount /dev/mmcsd0s1, probably with
Code: 
mount -t ntfs-3g /dev/mmcsd0s1 /mnt/exfat
Click to expand...
Code: 
root@FreeBSD:/home/kostas # mount -t ntfs-3g /dev/mmcsd0s1 /mnt/exfat/
mount: /dev/mmcsd0s1: Invalid fstype: Invalid argument
root@FreeBSD:/home/kostas # mount -t msdosfs /dev/mmcsd0s1 /mnt/exfat/
mount_msdosfs: /dev/mmcsd0s1: Invalid argument
Sadly it also doesnt work
 
Someone said:
Code: 
root@FreeBSD:/home/kostas # mount -t ntfs-3g /dev/mmcsd0s1 /mnt/exfat/
mount: /dev/mmcsd0s1: Invalid fstype: Invalid argument
root@FreeBSD:/home/kostas # mount -t msdosfs /dev/mmcsd0s1 /mnt/exfat/
mount_msdosfs: /dev/mmcsd0s1: Invalid argument
Sadly it also doesnt work
Click to expand...

Ah, I never mounted a NTFS filesystem myself on FreeBSD. Using mount(8) probably isn't working here. I assume you have to use the specific ntfs-3g(8) to mount a NTFS filesystem (untested on my side):
Code: 
ntfs-3g /dev/mmcsd0s1 /mnt/exfat
 
SirDice said:
fstype /dev/mmcsd0s1

Just because the slice is labeled as 'ntfs' doesn't mean the filesystem is NTFS.
Click to expand...
It is a SanDisk 128 GB microSD card inserted in an SD adapter into an x230 thinkpad SD card slot. I have deactivated some buses and ports from the BIOS for power efficiency, but i think this doesnt affect the SD card as it is active and seen.
 
T-Aoki said:
If the partition is formatted with exfat, you would need filesystems/exfat installed (possibly filesystems/exfat-utils, too, to determine filesystem).


If I recall correctly, at least early versions of NTFS (on MBR scheme) used the same one that HPFS used. It was quite annoying for OS/2 users.
Click to expand...
Installed both, still mount -t exfat /dev/mmcsd0s1 /mnt/exfat fails with
Code: 
mount: /dev/mmcsd0s1: Invalid fstype: Invalid argument
mount -t exfat /dev/mmcsd0 the same
 
Solved as seen in this thread:
(reply #5 by smithi)
forums.freebsd.org

Can not Mount USB Drive (exfat)

Hi, I have just started with BSD on virtualbox. I am quite inexperienced and haven't really used Linux much other than some basic tasks at work. The entire setup was done by the IT team, and I just used the commands to get my tasks done - grep, job submission, etc. I also have a ubuntu...
forums.freebsd.org forums.freebsd.org

mount -t exfat doesnt seem to work as intended, need to use mount.exfat instead

Thanks all for the help.
 
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