How to check if a cdrom is in the tray remotely (via ssh)?
- by adempewolff
I have a server running Ubuntu 10.04 (it's on the other side of the world and I haven't built up the wherewithal to upgrade it remotely yet) and I have been told that there is a CD in one of it's two CD drives. I want to rip an image of the cd and then download it to my local computer (I don't need help with either of these steps).
However, I cannot seem to confirm whether or not there actually is a CD in the drive as I was told. It did not automatically mount anywhere (which I'm thinking might just be a result of it being a headless server not running X, nautilus, or any of the other nice user friendly things).
There are two CD drives connected via SCSI:
austin@austinvpn:/proc/scsi$ cat /proc/scsi/scsi
Attached devices:
Host: scsi0 Channel: 00 Id: 00 Lun: 00
Vendor: ATA Model: WDC WD400EB-75CP Rev: 06.0
Type: Direct-Access ANSI SCSI revision: 05
Host: scsi1 Channel: 00 Id: 00 Lun: 00
Vendor: Lite-On Model: LTN486S 48x Max Rev: YDS6
Type: CD-ROM ANSI SCSI revision: 05
Host: scsi1 Channel: 00 Id: 01 Lun: 00
Vendor: SAMSUNG Model: CD-R/RW SW-248F Rev: R602
Type: CD-ROM ANSI SCSI revision: 05
However when I try mounting either of these devices (and every other device that could possibly be the cd-drive), it says no medium found:
austin@austinvpn:/proc/scsi$ sudo mount -t iso9660 /dev/scd1 /cdrom
mount: no medium found on /dev/sr1
austin@austinvpn:/proc/scsi$ sudo mount -t iso9660 /dev/scd0 /cdrom
mount: no medium found on /dev/sr0
austin@austinvpn:/proc/scsi$ sudo mount -t iso9660 /dev/cdrom /cdrom
mount: no medium found on /dev/sr1
austin@austinvpn:/proc/scsi$ sudo mount -t iso9660 /dev/cdrom1 /cdrom
mount: no medium found on /dev/sr0
austin@austinvpn:/proc/scsi$ sudo mount -t iso9660 /dev/cdrw /cdrom
mount: no medium found on /dev/sr1
Here are the contents of my /dev folder:
austin@austinvpn:/proc/scsi$ ls /dev
agpgart loop6 ram6 tty10 tty38 tty8
austinvpn loop7 ram7 tty11 tty39 tty9
block lp0 ram8 tty12 tty4 ttyS0
bsg mapper ram9 tty13 tty40 ttyS1
btrfs-control mcelog random tty14 tty41 ttyS2
bus mem rfkill tty15 tty42 ttyS3
cdrom net root tty16 tty43 urandom
cdrom1 network_latency rtc tty17 tty44 usbmon0
cdrw network_throughput rtc0 tty18 tty45 usbmon1
char null scd0 tty19 tty46 usbmon2
console oldmem scd1 tty2 tty47 usbmon3
core parport0 sda tty20 tty48 usbmon4
cpu_dma_latency pktcdvd sda1 tty21 tty49 vcs
disk port sda2 tty22 tty5 vcs1
dri ppp sda5 tty23 tty50 vcs2
ecryptfs psaux sg0 tty24 tty51 vcs3
fb0 ptmx sg1 tty25 tty52 vcs4
fd pts sg2 tty26 tty53 vcs5
full ram0 shm tty27 tty54 vcs6
fuse ram1 snapshot tty28 tty55 vcs7
hpet ram10 snd tty29 tty56 vcsa
input ram11 sndstat tty3 tty57 vcsa1
kmsg ram12 sr0 tty30 tty58 vcsa2
log ram13 sr1 tty31 tty59 vcsa3
loop0 ram14 stderr tty32 tty6 vcsa4
loop1 ram15 stdin tty33 tty60 vcsa5
loop2 ram2 stdout tty34 tty61 vcsa6
loop3 ram3 tty tty35 tty62 vcsa7
loop4 ram4 tty0 tty36 tty63 vga_arbiter
loop5 ram5 tty1 tty37 tty7 zero
And here is my fstab file:
austin@austinvpn:/proc/scsi$ cat /etc/fstab
# /etc/fstab: static file system information.
#
# Use 'blkid -o value -s UUID' to print the universally unique identifier
# for a device; this may be used with UUID= as a more robust way to name
# devices that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point> <type> <options> <dump> <pass>
proc /proc proc nodev,noexec,nosuid 0 0
/dev/mapper/austinvpn-root / ext4 errors=remount-ro 0 1
# /boot was on /dev/sda1 during installation
UUID=ed5520ae-c690-4ce6-881e-3598f299be06 /boot ext2 defaults 0 2
/dev/mapper/austinvpn-swap_1 none swap sw 0 0
Am I missing something/doing something wrong, or is there just no CD in the drive or is the drive possibly broken? Is there any nice command to list devices with mountable media?
Thanks in advance for any help!
