Arch Linux

esuhl

Member

From: UK

Registered: 2009-09-16

Posts: 140

Automount USB as read-write -- odd behaviour

I have two Arch machines -- an old PC and a new laptop.  Both are set up with XFCE, Thunar, and gvfs, so when I insert a USB storage device, it appears on the desktop and I can mount/unmount it via the right-click menu.  Double-clicking the icon opens Thunar.

I have two USB->SD-card adapters, and several SD cards.

On the desktop PC, both USB adapters work fine.  On the laptop, one adapter works, while the other only mounts as read-only.  Mounting manually gives the following error:

$ sudo mount -o rw -t vfat /dev/disk-by-label/2GB-SD /mnt/temp
mount: /mnt/temp: WARNING: source write-protected, mounted read-only.

Is this some weird compatibility issue with a particular USB-SD adapter and my particular laptop...?  Or have I somehow messed up the Arch installation somehow...?

Cheers :-)

seth

Member

From: Won't reply 2 private help req

Registered: 2012-09-03

Posts: 77,432

Re: Automount USB as read-write -- odd behaviour

Monitor "dmesg -w" when attaching the faulty device on either system, eg. if there're firmware loading (forgot to install linux-firmware?) or power issues on the notebook.
Does the latter have more than one usb jack and are there any other adapters/docks involved?

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