2011/1/30 Caglar Akyuz <caglarak...@gmail.com>: >> > When I booted into my filesystem, I do the following: >> > >> > $cp /dev/zero /dev/fb0 >> >> Do you have /dev/fb0 before doing this? If not this will create plain >> file /dev/fb0 which cause your following error. >> > > Yes I have the device node. Besides, calling 'fbset' prior to copy operation > works as expected. However, after copy operation device node is overwritten:
Can you explain what purpose is of doing cp /dev/zero /dev/fb0? > root@jd:~# ls -l /dev/fb* > -rw-r--r-- 1 root root 48766976 Jan 1 00:00 /dev/fb0 > crw------- 1 root root 29, 1 Jan 1 00:00 /dev/fb1 > crw------- 1 root root 29, 2 Jan 1 00:00 /dev/fb2 > crw------- 1 root root 29, 3 Jan 1 00:00 /dev/fb3 > > How can this be possible? Well.. cp is just copying files. You may understand /dev/zero as 'special' endless zero-filled file. If you are trying to fill /dev/fb0 with zeroes, then may be "cat /dev/zero > /dev/fb0" or "dd if=/dev/zero of=/dev/fb0 conv=nocreat" may be better idea. -- Yury Bushmelev _______________________________________________ Angstrom-distro-devel mailing list Angstrom-distro-devel@linuxtogo.org http://lists.linuxtogo.org/cgi-bin/mailman/listinfo/angstrom-distro-devel
