Edita el /etc/syslog.conf, añade esta linea:
kern.* -/var/log/kernel
y ejecuta "rcsyslog restart". A partir de ahí, enchufa la unidad de disco a ver que sale.
Si, ya tengo activado el modo debug, y ni media palabra a excepción de:
keyboard: Timeout - AT keyboard not present?(f4)
Apr 9 01:26:44 avantia kernel: usb-uhci.c: ENXIO 84000280, flags 0, urb
c7d48bc0, burb c7d48f40
Apr 9 01:26:44 avantia kernel: usbdevfs: USBDEVFS_CONTROL failed dev 2 rqt
128 rq 6 len 18 ret -6
Apr 9 01:26:44 avantia kernel: usb-uhci.c: ENXIO 84000280, flags 0, urb
c7d48d40, burb c7d48f40
Apr 9 01:26:44 avantia kernel: usbdevfs: USBDEVFS_CONTROL failed dev 2 rqt
128 rq 6 len 18 ret -6
Apr 9 01:26:44 avantia kernel: usb-uhci.c: ENXIO 84000280, flags 0, urb
c7d48d40, burb c7d48f40
Apr 9 01:26:44 avantia kernel: usbdevfs: USBDEVFS_CONTROL failed dev 2 rqt
128 rq 6 len 18 ret -6
Apr 9 01:26:44 avantia kernel: usb-uhci.c: ENXIO 84000280, flags 0, urb
c7d48f40, burb c7d48ac0
Apr 9 01:26:44 avantia kernel: usbdevfs: USBDEVFS_CONTROL failed dev 2 rqt
128 rq 6 len 59 ret -6
Apr 9 01:26:44 avantia /etc/hotplug/usb.agent[2416]: cannot get config
descriptor: No such device or address
Apr 9 01:26:44 avantia last message repeated 2 times
Apr 9 01:26:44 avantia /etc/hotplug/usb.agent[2422]: cannot get config
descriptor 0, No such device or address (6)
Apr 9 01:26:44 avantia kernel: usb-uhci.c: ENXIO 84000280, flags 0, urb
c7d48ac0, burb c7d48640
Apr 9 01:26:44 avantia kernel: usbdevfs: USBDEVFS_CONTROL failed dev 2 rqt
128 rq 6 len 9 ret -6
Apr 9 01:26:44 avantia /etc/hotplug/usb.agent[2416]: cannot get config
descriptor 0, No such device or address (6)
Apr 9 01:26:44 avantia kernel: usb-uhci.c: ENXIO 84000280, flags 0, urb
c7d48ac0, burb c7d48640
Apr 9 01:26:44 avantia kernel: usbdevfs: USBDEVFS_CONTROL failed dev 2 rqt
128 rq 6 len 18 ret -6
Apr 9 01:26:44 avantia /etc/hotplug/usb.agent[2416]: cannot get config
descriptor: No such device or address
Apr 9 01:26:44 avantia kernel: usb-uhci.c: ENXIO 84000280, flags 0, urb
c7d48d40, burb c7d48640
Apr 9 01:26:44 avantia kernel: usbdevfs: USBDEVFS_CONTROL failed dev 2 rqt
128 rq 6 len 18 ret -6
Apr 9 01:26:44 avantia /etc/hotplug/usb.agent[2416]: cannot get config
descriptor: No such device or address
Apr 9 01:26:44 avantia kernel: usb.c: registered new driver hiddev
Apr 9 01:26:44 avantia kernel: usb.c: registered new driver hid
Apr 9 01:26:44 avantia kernel: input: USB HID v1.10 Keyboard [Logitech USB
Receiver] on usb2:2.0
Apr 9 01:26:44 avantia kernel: usb-uhci.c: ENXIO 84000200, flags 0, urb
c8034cc4, burb c7d48d40
Apr 9 01:26:44 avantia kernel: hid-core.c: usb_submit_urb(out) failed
Apr 9 01:26:45 avantia kernel: input: USB HID v1.10 Mouse [Logitech USB
Receiver] on usb2:2.1
Apr 9 01:26:45 avantia kernel: hid-core.c: v1.8.1 Andreas Gal, Vojtech Pavlik
Cuando te falle el teclado, como te ocurre durante el arranque, hay que mirar en /var/log/boot.msg - pero obviamente no puedes, porque no tienes teclado. Pero, cuando consigas que arranque, el registro anterior (falluto) debería estar en /var/log/boot.omsg, así que le echas un vistazo.
A ver que sacamos.
-- Saludos Carlos Robinson