Wise people learn when they can; fools learn when they must - Arthur Wellesley

Wednesday, 22 February 2017

RHEL-6 (5) KNOW YOUR SYSTEM-P5 (CD/DVD-ROM)


RHEL-6 (5)
              KNOW YOUR SYSTEM-P5


CD-DVD ROM:
     How to check the status of CD-ROM in my system?
     How to know the device name of CD-ROM in my system?
     How to know the model name of CD-ROM in my system?
     What is the device format of CD-ROM in my system?
     How to mount CD-ROM in my system?
     How to unmount CD-ROM in my system?
     How to mount ISO image in my system?
     How to unmount ISO image in my system?


[root@rhel6-client1 ~]# cd-drive
cd-drive version 0.81 x86_64-redhat-linux-gnu
Copyright (c) 2003, 2004, 2005, 2007, 2008 R. Bernstein
This is free software; see the source for copying conditions.
There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE.
The driver selected is GNU/Linux
The default device for this driver is /dev/cdrom

Drivers available...
  GNU/Linux ioctl and MMC driver
  cdrdao (TOC) disk image driver
  bin/cuesheet disk image driver
  Nero NRG disk image driver

CD-ROM drive supports MMC 3
==============================O/P REMOVED===============================

To list all block devices.

[root@rhel6-client1 ~]# lsblk
NAME   MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT
sr0     11:0    1  3.5G  0 rom รงรง
sda      8:0    0   20G  0 disk
├─sda1   8:1    0  500M  0 part /boot
├─sda2   8:2    0    3G  0 part /opt
├─sda3   8:3    0    1G  0 part /home
├─sda4   8:4    0    1K  0 part
├─sda5   8:5    0    1G  0 part [SWAP]
└─sda6   8:6    0 14.6G  0 part /

[root@rhel6-client1 ~]# more /proc/sys/dev/cdrom/info
CD-ROM information, Id: cdrom.c 3.20 2003/12/17

drive name:             sr0
drive speed:            1
drive # of slots:       1
Can close tray:         1
Can open tray:          1
Can lock tray:          1
Can change speed:       1
Can select disk:        0
Can read multisession:  1
Can read MCN:           1
Reports media changed:  1
Can play audio:         1
Can write CD-R:         1
Can write CD-RW:        1
Can read DVD:           1
Can write DVD-R:        1
Can write DVD-RAM:      1
Can read MRW:           1
Can write MRW:          1
Can write RAM:          1

[root@rhel6-client1 ~]# dmesg |grep -i "cdrom"
ata2.00: ATAPI: VMware Virtual IDE CDROM Drive, 00000001, max UDMA/33

[root@rhel6-client1 ~]# dmesg |egrep -i "cdrom|dvd"
ata2.00: ATAPI: VMware Virtual IDE CDROM Drive, 00000001, max UDMA/33
sr0: scsi3-mmc drive: 1x/1x writer dvd-ram cd/rw xa/form2 cdda tray

[root@rhel6-client1 ~]# ls -l /dev/sr0
brw-rw----+ 1 root cdrom 11, 0 Feb 15 00:54 /dev/sr0

[root@rhel6-client1 ~]# ls -l /dev/cdrom
lrwxrwxrwx. 1 root root 3 Feb 15 00:54 /dev/cdrom -> sr0

cdrom device format= iso9660

[root@rhel6-client1 ~]# ls -ld /media/
drwxr-xr-x. 2 root root 4096 Jun 28  2011 /media/

[root@rhel6-client1 ~]# ls -ltr /media/
total 0

[root@rhel6-client1 ~]# mount -t iso9660 -o ro /dev/cdrom /media/
[root@rhel6-client1 ~]# df -kh
Filesystem            Size  Used Avail Use% Mounted on
/dev/sda6              15G  2.6G   12G  20% /
tmpfs                 937M   72K  937M   1% /dev/shm
/dev/sda1             485M   37M  423M   8% /boot
/dev/sda3            1008M   34M  924M   4% /home
/dev/sda2             2.9G   69M  2.7G   3% /opt
/dev/sr0              3.5G  3.5G     0 100% /media

[root@rhel6-client1 ~]# umount /media/
OR
[root@rhel6-client1 ~]# umount /dev/cdrom

[root@rhel6-client1 ~]# df -kh
Filesystem            Size  Used Avail Use% Mounted on
/dev/sda6              15G  2.6G   12G  20% /
tmpfs                 937M   72K  937M   1% /dev/shm
/dev/sda1             485M   37M  423M   8% /boot
/dev/sda3            1008M   34M  924M   4% /home
/dev/sda2             2.9G   69M  2.7G   3% /opt

HOW TO MOUNT ISO IMAGE:

[root@rhel6-server OS]# mkdir /iso-image
[root@rhel6-server OS]# mount -t iso9660 -o loop /mnt/hgfs/OS/rhel-server-7.0-x86_64-dvd.iso /iso-image/

[root@rhel6-server /]# mount -t iso9660 -o loop /comodo_rescue_disk_2.0.261647.1.iso /iso-image/

[root@rhel6-server /]# ls -l /iso-image/
total 11
drwxr-xr-x. 4 anurag anurag 2048 Dec 11  2012 boot
-rw-r--r--. 1 anurag anurag 2633 Jun  3  2011 index.html
-rw-r--r--. 1 anurag anurag 2874 Jun  3  2011 md5sum
-rw-r--r--. 1 anurag anurag  878 Jun  3  2011 README
-rw-r--r--. 1 anurag anurag 1217 Jun  3  2011 style.css

[root@rhel6-server /]# umount /iso-image/
[root@rhel6-server /]# ls -l /iso-image/
total 0



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