Why do we usually see a single device from my multipurpose storage device?

Posted on December 26th, 2010 in Common Technique by admin

Some distributions (notably Red Hat) spin off a heart choice CONFIG_SCSI_MULTI_LUN. This prevents usb-storage from automatically detecting all a inclination in your removable storage device. You can possibly recompile your heart with this choice enabled or (if your placement supports this) supplement a following line to /etc/modules.conf;

options scsi_mod max_scsi_luns=15

If we do not wish to do this for all SCSI inclination afterwards we can discuss it a heart to indicate for a specific device using;


echo >/proc/scsi/scsi “scsi add-single-device 0 0 0 1″


The initial 0 is a horde id (so it is 0 if this is your initial “SCSI” adapter, check “cat /proc/scsi/scsi” to see that is your USB Storage device), a second a channel (which for usb-storage should regularly be 0 we believe), a third is a aim (which again is regularly 0 for usb-storage) as well as a final is a LUN. LUN 0 is a usually a single probed if this heart choice is off, so you’d need to repeat this authority as base for each media sort your device accepts augmenting a LUN number.


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