Re: Mounting an SD-card and an USB-stick

On Tue, Jul 25, 2023 at 06:08:00PM +0200, Karel Lucas wrote:
>
> Dear all,
>
> For a fresh install of openBSD, I want to mount an SD card or a USB stick on
> an existing openBSD install, but don't know which device name to use. Maybe
> someone can help me out?
>

You can check the device name to which they are attached by checking the
dmesg or /var/log/messages. This is from attaching a card reader with
multiple slots, but only one of them holding a card (sd4):

$ dmesg
...
umass0 at uhub0 port 12 configuration 1 interface 0 "Generic USB Storage" rev 2.10/12.09 addr 9
umass0: using SCSI over Bulk-Only
scsibus5 at umass0: 2 targets, initiator 0
sd2 at scsibus5 targ 1 lun 0: <Generic, MassStorageClass, 1209> removable
sd3 at scsibus5 targ 1 lun 1: <Generic, MassStorageClass, 1209> removable
sd4 at scsibus5 targ 1 lun 2: <Generic, MassStorageClass, 1209> removable
sd4: 30608MB, 512 bytes/sector, 62685184 sectors
sd5 at scsibus5 targ 1 lun 3: <Generic, MassStorageClass, 1209> removable

If in doubt, you can then check which partitions that disk holds using disklabel:

$ disklabel sd4
...
# size offset fstype [fsize bsize cpg]
c: 62685184 0 unused
i: 62676992 8192 MSDOS

In this case, a single MSDOS partition (i) that you can then mount:

# mount /dev/sd4i /mnt

Cheers
Zé

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