Installation Raw Device On Debian

설치과정

raw module 을 추가한다.
```
# modprobe raw
```

raw device 맵을 확인한다.

# MAKEDEV -v raw
create rawctl   c 162 0 root:disk 0660
create raw/raw1 c 162 1 root:disk 0660
create raw/raw2 c 162 2 root:disk 0660
create raw/raw3 c 162 3 root:disk 0660
create raw/raw4 c 162 4 root:disk 0660
create raw/raw5 c 162 5 root:disk 0660
create raw/raw6 c 162 6 root:disk 0660
create raw/raw7 c 162 7 root:disk 0660
create raw/raw8 c 162 8 root:disk 0660

/etc/raw 디렉토리를 생성한다.
```
# mkdir /dev/raw
```
/etc/rawctl 생성한다.
```
mknod /dev/rawctl c 162 0
```

/etc/raw/rawX 디바이스를 생성한다.

mknod /dev/raw/raw1 c 162 1
mknod /dev/raw/raw2 c 162 2
mknod /dev/raw/raw3 c 162 3
mknod /dev/raw/raw4 c 162 4
mknod /dev/raw/raw5 c 162 5
mknod /dev/raw/raw6 c 162 6
mknod /dev/raw/raw7 c 162 7
mknod /dev/raw/raw8 c 162 8

raw 파일을 디스크에 매핑시킨다.

# cd /dev/raw
# raw /dev/raw/raw1 /dev/hdb1

raw device 상태를 확인한다.

# MAKEDEV -v -n raw
create rawctl   c 162 0 root:disk 0660
create raw/raw1 c 162 1 root:disk 0660
create raw/raw2 c 162 2 root:disk 0660
create raw/raw3 c 162 3 root:disk 0660
create raw/raw4 c 162 4 root:disk 0660
create raw/raw5 c 162 5 root:disk 0660
create raw/raw6 c 162 6 root:disk 0660
create raw/raw7 c 162 7 root:disk 0660
create raw/raw8 c 162 8 root:disk 0660

node2:/dev/raw# raw -qa
/dev/raw/raw1:  bound to major 8, minor 17
/dev/raw/raw2:  bound to major 8, minor 33
/dev/raw/raw3:  bound to major 8, minor 49
/dev/raw/raw4:  bound to major 8, minor 65
/dev/raw/raw5:  bound to major 8, minor 81

raw device format

# dd if=/dev/zero of=/dev/raw/raw1 bs=1024 count=1000

Oracle 등 어플리케이션에서 raw device를 이용한다.