Esto es lo que he ido haciendo... 1. He cerrado Linux y he reiniciado con Windows (tengo todavía arranque dual Linux/Windows). He podido comprobar que los dispositivos USB que he ido probando se han activado todos correctamente y funcionan bastante bien en Windows. Con esto, queda descartado que sea un problema Hardware. 2. He vuelto a Linux, y he podido comprobar que cuando intento tener conectado el disco duro externo USB, y la grabadora externa DVD USB, uno de los dos se desmonta automáticamente, y sólo se queda montado uno. Estos son los mensajes que he ido obteniendo tendiendo encendido el disco duro USB externo, y la grabadora de DVD USB externa. 3. Adjunto mensajes de /var/log/messages Dec 20 17:39:04 linux kernel: usb 1-1: new full speed USB device using ohci_hcd and address 10 Dec 20 17:39:04 linux kernel: scsi6 : SCSI emulation for USB Mass Storage devices Dec 20 17:39:04 linux kernel: usb-storage: device found at 10 Dec 20 17:39:04 linux kernel: usb-storage: waiting for device to settle before scanning Dec 20 17:39:08 linux kernel: usb 1-2.1: new full speed USB device using ohci_hcd and address 11 Dec 20 17:39:08 linux kernel: scsi7 : SCSI emulation for USB Mass Storage devices Dec 20 17:39:08 linux kernel: usb-storage: device found at 11 Dec 20 17:39:08 linux kernel: usb-storage: waiting for device to settle before scanning Dec 20 17:39:09 linux kernel: Vendor: _NEC Model: DVD_RW ND-3500AG Rev: 2.06 Dec 20 17:39:09 linux kernel: Type: CD-ROM ANSI SCSI revision: 00 Dec 20 17:39:10 linux kernel: sr0: scsi3-mmc drive: 48x/48x writer cd/rw xa/form2 cdda tray Dec 20 17:39:10 linux kernel: Attached scsi CD-ROM sr0 at scsi6, channel 0, id 0, lun 0 Dec 20 17:39:10 linux kernel: Attached scsi generic sg0 at scsi6, channel 0, id 0, lun 0, type 5 Dec 20 17:39:10 linux kernel: usb-storage: device scan complete Dec 20 17:39:13 linux kernel: Vendor: WDC Model: WD1600BB-00GUA0 Rev: 08.0 Dec 20 17:39:13 linux kernel: Type: Direct-Access ANSI SCSI revision: 02 Dec 20 17:39:13 linux kernel: SCSI device sda: 312581808 512-byte hdwr sectors (160042 MB) Dec 20 17:39:13 linux kernel: sda: assuming drive cache: write through Dec 20 17:39:13 linux kernel: SCSI device sda: 312581808 512-byte hdwr sectors (160042 MB) Dec 20 17:39:13 linux kernel: sda: assuming drive cache: write through Dec 20 17:39:13 linux kernel: sda: sda1 Dec 20 17:39:13 linux kernel: Attached scsi disk sda at scsi7, channel 0, id 0, lun 0 Dec 20 17:39:13 linux kernel: Attached scsi generic sg1 at scsi7, channel 0, id 0, lun 0, type 0 Dec 20 17:39:13 linux kernel: usb-storage: device scan complete Dec 20 17:39:19 linux hal-subfs-mount[8764]: SYMLINKS:: disk/by-id/usb-WDC_WD1600BB-00GUA0_10000E0008D89D31 disk/by-path/usb-10000E0008D89D31:0:0:0 Dec 20 17:39:19 linux hal-subfs-mount[8764]: MOUNT_POINT:: /media/BACKUP Dec 20 17:39:19 linux hal-subfs-mount[8764]: MOUNTPOINT:: /media/BACKUP Dec 20 17:39:19 linux hal-subfs-mount[8764]: Collected mount options and Called(0) /bin/mount -t subfs -o fs=floppyfss,sync,procuid,nosuid,nodev,exec,utf8=true /dev/sda1 "/media/BACKUP" Dec 20 17:39:19 linux udevd[2255]: get_netlink_msg: no ACTION in payload found, skip event 'mount' Dec 20 17:39:20 linux hal-subfs-mount[8774]: SYMLINKS:: disk/by-id/usb-LaCie_LaCie_DVDRW_USB_10000E0008D9318D disk/by-path/usb-10000E0008D9318D:0:0:0 Dec 20 17:39:20 linux hal-subfs-mount[8774]: MOUNT_POINT:: /media/Guerra13 Dec 20 17:39:20 linux hal-subfs-mount[8774]: MOUNTPOINT:: /media/Guerra13 Dec 20 17:39:20 linux hal-subfs-mount[8774]: Collected mount options and Called(0) /bin/mount -t subfs -o fs=cdfss,ro,procuid,nosuid,nodev,exec,iocharset=utf8 /dev/sr0 "/media/Guerra13" Dec 20 17:39:20 linux udevd[2255]: get_netlink_msg: no ACTION in payload found, skip event 'mount' Dec 20 17:39:22 linux udevd[2255]: get_netlink_msg: no ACTION in payload found, skip event 'umount' Dec 20 17:39:23 linux udevd[2255]: get_netlink_msg: no ACTION in payload found, skip event 'mount' Dec 20 17:39:23 linux udevd[2255]: get_netlink_msg: no ACTION in payload found, skip event 'umount' Dec 20 17:39:24 linux udevd[2255]: get_netlink_msg: no ACTION in payload found, skip event 'mount' Dec 20 17:39:26 linux udevd[2255]: get_netlink_msg: no ACTION in payload found, skip event 'umount' Dec 20 17:39:27 linux udevd[2255]: get_netlink_msg: no ACTION in payload found, skip event 'umount' Dec 20 17:44:55 linux kernel: ACPI-1048: *** Warning: Failed to acquire semaphore[dbecf800|1|0], AE_TIME 4. Adjunto mensajes de /proc/mounts rootfs / rootfs rw 0 0 initramfsdevs /dev tmpfs rw 0 0 /dev/hda3 / reiserfs rw 0 0 eventfs /lib/klibc/events tmpfs rw 0 0 proc /proc proc rw,nodiratime 0 0 sysfs /sys sysfs rw 0 0 devpts /dev/pts devpts rw 0 0 tmpfs /dev/shm tmpfs rw 0 0 /dev/hda1 /windows/C ntfs ro,nosuid,nodev,noexec,uid=0,gid=100,umask=02,nls=utf8,errors=continue,mft_zone_multiplier=1 0 0 usbfs /proc/bus/usb usbfs rw 0 0 /dev/sda1 /media/BACKUP subfs rw,sync,nosuid,nodev 0 0 /dev/sr0 /media/Guerra13 subfs ro,nosuid,nodev 0 0 5. Adjunto mensajes de /var/log/warn Dec 20 17:36:13 linux kernel: sr0: scsi3-mmc drive: 48x/48x writer cd/rw xa/form2 cdda tray Dec 20 17:36:23 linux udevd[2255]: get_netlink_msg: no ACTION in payload found, skip event 'mount' Dec 20 17:36:26 linux udevd[2255]: get_netlink_msg: no ACTION in payload found, skip event 'umount' Dec 20 17:36:26 linux udevd[2255]: get_netlink_msg: no ACTION in payload found, skip event 'mount' Dec 20 17:36:29 linux udevd[2255]: get_netlink_msg: no ACTION in payload found, skip event 'umount' Dec 20 17:38:25 linux kernel: ACPI-1048: *** Warning: Failed to acquire semaphore[dbecf800|1|0], AE_TIME Dec 20 17:39:10 linux kernel: sr0: scsi3-mmc drive: 48x/48x writer cd/rw xa/form2 cdda tray Dec 20 17:39:13 linux kernel: sda: assuming drive cache: write through Dec 20 17:39:13 linux kernel: sda: assuming drive cache: write through Dec 20 17:39:19 linux udevd[2255]: get_netlink_msg: no ACTION in payload found, skip event 'mount' Dec 20 17:39:20 linux udevd[2255]: get_netlink_msg: no ACTION in payload found, skip event 'mount' Dec 20 17:39:22 linux udevd[2255]: get_netlink_msg: no ACTION in payload found, skip event 'umount' Dec 20 17:39:23 linux udevd[2255]: get_netlink_msg: no ACTION in payload found, skip event 'mount' Dec 20 17:39:23 linux udevd[2255]: get_netlink_msg: no ACTION in payload found, skip event 'umount' Dec 20 17:39:24 linux udevd[2255]: get_netlink_msg: no ACTION in payload found, skip event 'mount' Dec 20 17:39:26 linux udevd[2255]: get_netlink_msg: no ACTION in payload found, skip event 'umount' Dec 20 17:39:27 linux udevd[2255]: get_netlink_msg: no ACTION in payload found, skip event 'umount' Dec 20 17:44:55 linux kernel: ACPI-1048: *** Warning: Failed to acquire semaphore[dbecf800|1|0], AE_TIME Dec 20 17:51:25 linux kernel: ACPI-1048: *** Warning: Failed to acquire semaphore[dbecf800|1|0], AE_TIME ¿De qué se encarga semaphore? Gracias, Rubén + El Lunes 19 Diciembre 2005 20:50, Rubén escribió:
Buenas tardes lista: Tengo un problema desde que actualicé de la versión 9.3 de Suse a la 10.0.
Cuando conecto un dispositivo de almacenamiento masivo (pendrive, disco duro externo, etc) tipo USB, Suse 10.0 monta bien el dispositivo, pero cuando intento hacer alguna transferencia de datos, resulta que la velociad de transferencia está en torno a los 20 KB/s.
¿A qué se puede deber? ¿Alguna pista para empezar a investigar?
Gracias, Rubén +