Hello, I know from RedHat 9 that I have an initrd file ( initrd_x_y_z.img) under /boot which is used in the boot process. In the past, when I took that initrd file and renamed it to a *.gz file (since it is in fact a compressed file ) and than ran: gunzip initrd_x_y_z.img mount -o loop initrd_x_y_z tmp cd tmp ls I saw the contents of initrd. When I tried the same in Fedora Core 4 /boot//boot/initrd-2.6.11-1.1369_FC4.img and tried mount -o loop initrd-2.6.11-1.1369_FC4 tmp I got : ioctl: LOOP_CLR_FD: Device or resource busy mount: you must specify the filesystem type googling did not helped much ; Any idea? Regards, John -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/