28 May
2022
28 May
'22
7:33 p.m.
On Saturday 28 May 2022 12:08:08 Thierry de Coulon wrote:
I 'm not sure if this is rather a linux or a TDE
question.
I've got a new Canon Camera. When I connect it to my PC with an USB cable,
it is mounted as mass storage (wich is very good).
It has two SD cards that appear as two directories in a Konqueror window.
So far so good. However, this window says "system:/media/Unknown Device
1-12:1.0" and it is nowhere to be found, not in /media/<user>, not in /mnt,
mount also gives me nothing (or I don't know what to look for).
So I can't unmount it, I have to turn the camera off. I don't think it's a
real problem as the SD cards are exfat formated and I check that nothing's
being read/writen, but I'd prefer to unmount.
If the system can mount this "Unknown Device 1-12:1.0", it must be
somewhere, no?
I'm not looking for a way to open the camera in Digikam or so. Coying the
files with Konqueror is just what I want, but I'd like a way to know the
mounting point. I got the USB IDs so I was thinking of writing some udev
rule. lsusb returns Bus 001 Device 012: ID 04a9:32f5 Canon, Inc. but there
is no 012 or 12 in /dev/bus/usb...
Not sure if I understand what you really want to do, but here goes.
It would be simpler if you took the SD cards out of the camera itself
(shutting off the camera first), then used a card reader. The same would go
for a phone, or any device that uses an SD card or similar.
My own laptop has a card reader that is built-in, as I believe most of the
newer machines do. Otherwise, card readers are cheap. I got one for about $20
US, maybe a year or two ago, and I have a couple older ones that still work.
(Adapters come with most SD cards that I buy, but they are not hard to find.
I see them when I am out walking, as people have dropped them.)
For mouting or unmounting, see man pages. If you take out the SD cards,
intending to use a card reader, then you may need to use mkdir to create
special directories in which to mount them, e.g.,
sudo mkdir /mnt/SD1 /mnt/SD2
However, if the camera itself mounts, then it also ought to unmount using
these same commands, in this case umount; e.g.,
sudo umount /dev/sdd1
or whatever is the mount point. To find the correct mount points, try this:
df --local --human-readable -T
I hope this helps.
Bill