I was copying dozens of log files totalling about 4GB to a thumb drive mounted on
my Linux RHES 4.x box using "cp /etc/httpd/NSC_logs/* /usb/folder/ &" & after
the background copying is completed (a message popped up to say the backgrd
job is done), I issued "umount /usb" but I guess just before the umount completes,
I pulled out the thumb drive & on the console, some error messages popped up,
saying "FAT . . . bread . . . IO ..... "
Now, if I plug any thumb drive into the port, dmesg would not show any messages
to say a USB device is detected.
How can I resolve this without rebooting the Linux box?
Let me know if more info is needed