I am trying to get a new portable audio recorder (the H4 Zoom --
http://www.samsontech.com/products/productpage.cfm?prodID=1901) to connect to
my Debian testing (amd64) box. The device is compliant with the USB 2.0 mass
storage standard and I can get it to work on another machine running Japanese
Ubuntu (it automounts the device when I connect it).
After loading the usb_storage module (modprobe usb_storage) I connect
the device and tell it to connect to the computer. Watching my syslog (tail -f
/var/log/syslog), the connect sequence seems to be going very well until the
end, when it terminates in the following error:
scsi.agent[15554]: sd_mod: can't be loaded (for disk)
lsmod shows that I do not have the sd_mod module loaded, and I'm unable
to load it with "modprobe sd_mod" -- FATAL: Module sd_mod not found.
Checking my kernel configs (according to information I read here:
http://linuxgazette.net/133/tag.html) it turns out that I have the CONFIG_SCSI
and CONFIG_BLK_DEV_SD modules compiled into the kernel. For what it's worth,
I'm using a kernel that a friend helped me compile.
chappa:/tmp# grep CONFIG_BLK_DEV_SD /boot/config-2.6.13.4.05102203
CONFIG_BLK_DEV_SD=y
chappa:/tmp# grep -i sd /boot/config-2.6.13.4.05102203
CONFIG_BLK_DEV_SD=y
Any ideas why the sd_mod module can't be found during the USB connect
sequence? The complete output of syslog during a connect attempt is below.
Thank you in advance for any help you're able to provide.
Kris Bergstrom
OnEnsemble.org
Feb 15 20:57:11 chappa kernel: ohci_hcd 0000:00:02.0: wakeup
Feb 15 20:57:11 chappa kernel: usb 1-1: new full speed USB device using
ohci_hcd and address 4
Feb 15 20:57:11 chappa kernel: usb 1-1: config 1 has an invalid interface
number: 5 but max is 0
Feb 15 20:57:11 chappa kernel: usb 1-1: config 1 has no interface number 0
Feb 15 20:57:12 chappa usb.agent[15519]: usb-storage: already loaded
Feb 15 20:57:12 chappa kernel: scsi6 : SCSI emulation for USB Mass Storage
devices
Feb 15 20:57:12 chappa kernel: usb-storage: device found at 4
Feb 15 20:57:12 chappa kernel: usb-storage: waiting for device to settle before
scanning
Feb 15 20:57:17 chappa kernel: Vendor: ZOOM Model: H4 SD R&W
Rev: 0.01
Feb 15 20:57:17 chappa kernel: Type: Direct-Access
ANSI SCSI revision: 02
Feb 15 20:57:17 chappa kernel: SCSI device sdc: 248320 512-byte hdwr sectors
(127 MB)
Feb 15 20:57:17 chappa kernel: sdc: Write Protect is off
Feb 15 20:57:17 chappa kernel: sdc: Mode Sense: 00 02 00 00
Feb 15 20:57:17 chappa kernel: sdc: assuming drive cache: write through
Feb 15 20:57:17 chappa kernel: SCSI device sdc: 248320 512-byte hdwr sectors
(127 MB)
Feb 15 20:57:17 chappa kernel: sdc: Write Protect is off
Feb 15 20:57:17 chappa kernel: sdc: Mode Sense: 00 02 00 00
Feb 15 20:57:17 chappa kernel: sdc: assuming drive cache: write through
Feb 15 20:57:17 chappa kernel: sdc: sdc1
Feb 15 20:57:17 chappa kernel: Attached scsi removable disk sdc at scsi6,
channel 0, id 0, lun 0
Feb 15 20:57:17 chappa kernel: Attached scsi generic sg2 at scsi6, channel 0,
id 0, lun 0, type 0
Feb 15 20:57:17 chappa kernel: usb-storage: device scan complete
Feb 15 20:57:18 chappa scsi.agent[15554]: sd_mod: can't be loaded (for
disk)
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