end_request: I/O error, dev fd0, sector 0 end_request: I/O error, dev fd0, sector 0 end_request: I/O error, dev fd0, sector 0 end_request: I/O error, dev fd0, sector 0 end_request: I/O error, dev fd0, sector 0 end_request: I/O error, dev fd0, sector 0 end_request: I/O error, dev fd0, sector 0 end_request: I/O error, dev fd0, sector 0 end_request: I/O error, dev fd0, sector 0 end_request: I/O error, dev fd0, sector 0 end_request: I/O error, dev fd0, sector 0 end_request: I/O error, dev fd0, sector 0 end_request: I/O error, dev fd0, sector 0 Installation finished. No error reported. This is the contents of the device map /boot/grub/device.map. Check if this is correct or not. If any of the lines is incorrect, fix it and re-run the script `grub-install'. (fd0) /dev/fd0 (hd0) /dev/sda (hd1) /dev/sdb