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Operating Systems Linux Ubuntu USB flash drive/keyfob will not automount Post 302320082 by robgwin on Wednesday 27th of May 2009 03:03:49 AM
Old 05-27-2009
Solved by restarting HAL

I just had this same issue on Ubuntu 9.04. My USB thumb drive was automounting correctly all day, and I made sure to unmount (eject) before removing it every time, but for whatever reason, it suddenly stopped mounting when I plugged it in.

Thanks to the links provided by techlinux, I learned a bit about HAL, and running "ps aux | grep hal" turned up a line like this:

hald-addon-storage: no polling because /dev/sdc is locked via HAL

With the usb drive unplugged, I restarted HAL, and that fixed the problem, hooray. However, the command is slightly different than specified in the HAL wiki. /etc/rc.d/hal doesn't exist (in fact, /etc/rc.d doesn't exist). This is the command I used:

sudo /etc/init.d/hal restart

Now.. how do we figure out what causes the polling/locked problem in the first place?
 

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MOUNT_CHFS(8)						    BSD System Manager's Manual 					     MOUNT_CHFS(8)

NAME
mount_chfs -- mount a CHFS flash file system SYNOPSIS
mount_chfs DESCRIPTION
Mounts a flash file system from a flash(4) device. CHFS file systems can be only mounted from flash devices. For regular block devices like SSD drives or USB drives, please use a regular file system. The file system will be created during the first mount. CHFS stands for Chip File System. EXAMPLES
mount_chfs /dev/flash0 /mnt SEE ALSO
flash(4), fstab(5), mount(8), flash(9) HISTORY
CHFS was originally called ChewieFS during development. The name was changed to avoid legal issues and to have a more neutral name. AUTHORS
CHFS was developed at the Department of Software Engineering, University of Szeged, Hungary. BUGS
CHFS has a few known bugs as of 2011. Writing the FS full can cause problems. Truncating a file and growing it again can cause the new bytes not having all zeroes, but filled with the old content instead. BSD
November 29, 2011 BSD
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