Date: Fri, 28 Jul 2017 20:51:44 +0200 From: Polytropon <freebsd@edvax.de> To: byrnejb@harte-lyne.ca Cc: "James B. Byrne via freebsd-questions" <freebsd-questions@freebsd.org> Subject: Re: Unable to mount USB Flash memory created on CentOS Message-ID: <20170728205144.c1fc18df.freebsd@edvax.de> In-Reply-To: <aa1eadff2a815bacb69dc015b4aa1f4f.squirrel@webmail.harte-lyne.ca> References: <aa1eadff2a815bacb69dc015b4aa1f4f.squirrel@webmail.harte-lyne.ca>
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On Fri, 28 Jul 2017 13:22:06 -0400, James B. Byrne via freebsd-questions wrote: > On my new FreeBSD workstation I am trying to read data off of a USB > 'key' flash memory stick recorded using rsync on a CentOS-6 system. I > was able to do this successfully up until the point that I inserted > another usb stick. Now I cannot mount or read either. Did you unmount the previous stick correctly? When you say it was "recorded" with CentOS, which file system has been used? Or is it a "raw" file (no file system at all, output written directly to the device)? > I probably made things worse by first removing both keys from the host > and then deleting the contents of /media. However, that is done. That should not be a big problem, as /media is usually populated automatically by a desktop environment's automounter, or manually by the system administrator (which implies that you can easily recreate required mountpoints under /media if you use /etc/fstab as a template). > At the moment what happens is that upon insertion the 'computer' > browser pane will display a filesystem labelled 'USB Drive' but I > cannot open it for viewing. Is it empty? When you say it's being opened, I assume this is a file browser - but from which desktop? They are quite different! Check things easily: Open a terminal and check the outpuf of % mount -v Is the USB stick (usually /dev/da0 or /dev/da0s1 or something like that) _really_ mounted? Check what's on the USB stick, using % gpart show da0 where da0 is the device for the USB stick. To check if da0 is correct, check the last lines of % dmesg It should be easy to identify what the USB stick is. > Neither does a mount command show in the > right-click popup menu. So it probably _is_ mounted. Does the menu show a "detach", "unoumt" or "eject" entry or symbol? As I said, don't rely on distracting pictural elements. Query the OS directly using the command line. It will tell you what is _really_ happening. > Rebooting the system does not return the system to its former behaviour. It _never_ does. ;-) > How is this fixed? Is it not possible to have two USB drives mounted > simulatenously? You need to provide more information. -- Polytropon Magdeburg, Germany Happy FreeBSD user since 4.0 Andra moi ennepe, Mousa, ...
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