usb disk FC3 - /dev/sd* neni

[Max Cerny]

Dobry den.
Mam maly problem. Pouzivam FC3 s jadrem 2.6.10-1.741_FC3. Nedari se mi
namountovat muj usb flash disk.
v /dev/ nevidim zadny soubor sd*

po zapojeni disku se mi v log/messages objevi

kernel: usb 1-5: new high speed USB device using ehci_hcd and address 3

po vypojeni nic.

obcas mi to hodi hlasku 
kernel: usb 1-5: device descriptor read/all, error -71

je to podle me zcela nahodne, nejde nijak vysledovat proc to tohle
hlasi.


[root na cerny3 maxim]# lsmod
Module                  Size  Used by
usb_storage            61449  0
scsi_mod              120897  1 usb_storage
nvidia               3462812  12
ipt_MASQUERADE          3265  1
iptable_nat            23301  2 ipt_MASQUERADE
ip_conntrack           40309  2 ipt_MASQUERADE,iptable_nat
ip_tables              16321  2 ipt_MASQUERADE,iptable_nat
parport_pc             26501  1
lp                     12077  0
parport                36617  2 parport_pc,lp
sunrpc                154149  1
dm_mod                 55509  0
video                  15813  0
button                  6609  0
battery                 9285  0
ac                      4805  0
md5                     4033  1
ipv6                  230273  10
uhci_hcd               31321  0
ehci_hcd               34761  0
i2c_viapro              7245  0
i2c_core               20801  1 i2c_viapro
snd_via82xx            27361  0
snd_ac97_codec         67105  1 snd_via82xx
snd_pcm_oss            47861  0
snd_mixer_oss          17089  1 snd_pcm_oss
snd_pcm                92233  3 snd_via82xx,snd_ac97_codec,snd_pcm_oss
snd_timer              28357  1 snd_pcm
snd_page_alloc          9541  2 snd_via82xx,snd_pcm
gameport                4801  1 snd_via82xx
snd_mpu401_uart         8769  1 snd_via82xx
snd_rawmidi            25441  1 snd_mpu401_uart
snd_seq_device          8525  1 snd_rawmidi
snd                    52261  9
snd_via82xx,snd_ac97_codec,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer,snd_mpu401_uart,snd_rawmidi,snd_seq_device
soundcore               9889  1 snd
8139too                26177  0
via_rhine              23369  0
mii                     4673  2 8139too,via_rhine
floppy                 57329  0
ext3                  116041  2
jbd                    68185  1 ext3