Re: cold-plugged usb flash drive not handled correctly in embedded

[Greg KH <greg@kroah.com>]

On Fri, Aug 20, 2010 at 04:42:36PM +0200, Wolfgang Wegner wrote:
> Hi list,
> 
> I am having a problem with udev on an embedded system and
> am asking for advice on how to track this down. The system is
> an ARM (kirkwood) platform with a busybox-based init. I cross-
> compiled udev-161, made a simple udev start script (basically
> ripped off from debian and stripped from most of the config
> stuff) and a very basic rules file in
> /etc/udev/rules.d/50-udev.rules:
> ACTION="add", KERNEL="sd[a-z][0-9]", RUN+="/bin/mount -t auto -o rw,noauto,flush,quiet,nodev,nosuid,exec,noatime,dmask\00,fmask\x111 /dev/%k /mnt/usbdisk", OPTIONS="last_rule"
> ACTION="remove", KERNEL="sd[a-z][0-9]", RUN+="/bin/umount -l /mnt/usbdisk"
> 
> It does not matter if I leave the standard rules in
> /libexec/rules.d/ or if I remove them altogether, in either
> case the USB flash drive is correctly mounted when plugged
> into the running system but not when it is already present when
> the system boots up.

Perhaps because you do not have a 'mount' executable when the device is
found during the boot process?

thanks,

greg k-h