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General description

This section describes how to find proper "/dev/sg" device for CHARON mapping

Procedures of finding the target "/dev/sg" device

Method 1

Open a terminal console and issue:

...

(info) If the "lsscsi" command is not installed on your system, use "yum install lsscsi" to make it available. If you cannot install "lsscsi", use method 2 or method 3 described below.

Output example1:

[0:0:0:0]

disk VMware Virtual disk 1.0 /dev/sda

    disk    VMware   Virtual disk     1.0   /dev/sda   /dev/sg0


[0:0:10:0]

tape COMPAQ SDLT320 5F5F /dev/st0

  tape    COMPAQ   SDLT320          5F5F  /dev/st0   /dev/sg9


[0:0:11:0]

tape COMPAQ SDLT320 5F5F

   tape    COMPAQ   SDLT320          5F5F  /dev/st1

  /dev/sg10


[0:0:12:0]

  mediumx

COMPAQ

MSL5000 Series 0520

  MSL5000 Series   0520  /dev/

sch0

sch0  /dev/sg11

Output example2:

[0:0:0:0]

disk

   disk    VMware,

  VMware

Virtual

S

1.

0

0   /dev/sda

  /dev/sg0
[4:0:0:0]

    cd/

dvd

dvd  NECVMWar

VMware

SATA

CD01

1.

00

00  /dev/sr0

  /dev/sg1

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Method 2

Open a terminal console and issue:

...

The fifth column ("type") value has the following correspondence:

ValueDevice
0Disk
1Tape
5CD-ROM
8Tape changer

...

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...

Method 3

On a freshly booted system, issue the following command:

# dmesg | grep sg

The output will look like that:

[ 1.503622] sr 4:0:0:0: Attached scsi generic sg0 type 5
[ 1.780897] sd 5:0:0:0: Attached scsi generic sg1 type 0

(warning) This table lists all the devices, not only the real SCSI ones (SATA/IDE for example). CHARON supports only real SCSI devices.

...