unable to mount the partition

MANISH BHARTI · 03-03-2016, 06:35 AM

please help me to solve this problem when i tried to mount the partition /dev/sda3 it give me this error :

Error mounting /dev/sda3 at /media/nik/ISOIMAGE: Command-line `mount -t "iso9660" -o "uhelper=udisks2,nodev,nosuid,uid=1000,gid=1000,iocharset=utf8,mode=0400,dmode=0500" "/dev/sda3" "/media/nik/ISOIMAGE"' exited with non-zero exit status 32: mount: /dev/sda3 is write-protected, mounting read-only
mount: /dev/sda3 is not a valid block device

beachboy2 · 03-03-2016, 06:46 AM

MANISH BHARTI,

Welcome to LQ.

I am guessing that you are doing a dual-boot with Windows?

Which Windows OS are you using?

Any other relevant information would be useful (Linux distro, version etc).

It may be that your Windows OS, such as 8.1, is not shut down completely and is merely hibernating.

Try shutting it down completely.

zhjim · 03-03-2016, 07:40 AM

Do a file -s /dev/sda3 and post output please. To me it seems that you want to mount a harddrive with a filesystem option of a cdrom.
Did you just try mount /dev/sda3 /mnt?

yancek · 03-03-2016, 07:42 AM

Why would you want a partition on your drive mounted as iso9660? Do you just have an iso file you want to mount an iso file to explore it, loop mount the iso file. More details on what you want to accomplish would be a good idea. Do an online search for "create a partition and format iso9660" and you will get a lot of info on why this isn't usually necessary or practical.

MANISH BHARTI · 03-03-2016, 07:46 AM

sir as you ask i run this

sudo file -s /dev/sda3
[sudo] password for nik:
/dev/sda3: writable, no read permission

and this

$sudo mount /dev/sda3 /mnt
mount: /dev/sda3 is not a valid block device

and i did not give the partition name as iso9660 it come automatically when i finish the installation
by the way my destro is

Debian GNU/Linux 8 \n \l

debian 8.3

zhjim · 03-03-2016, 09:54 AM

Okay that file -s did not help me. Thats what I get on my system

Quote:

me@me:~$ file -s /dev/sda1
/dev/sda1: Linux rev 1.0 ext4 filesystem data, UUID=4386e412-369b-4555-b209-f295dfbb4132 (needs journal recovery) (extents) (large files) (huge files)

Can you check the partition table? Either with fdisk -l /dev/sda or with gdisk or gparted or similar tool?
Could sda3 be an extended partition?

Soadyheid · 03-03-2016, 11:24 AM

Quote:

and i did not give the partition name as iso9660 it come automatically when i finish the installation

What did you do the installation from? A CD/DVD which you'd burned from the .iso file you downloaded or did you use the .iso to build a bootable USB pen drive?

Did you just copy the .iso file to the partition?

Quote:

Error mounting /dev/sda3 at /media/nik/ISOIMAGE: Command-line `mount -t "iso9660" -o "uhelper=udisks2,nodev,nosuid,uid=1000,gid=1000,iocharset=utf8,mode=0400,dmode=0500" "/dev/sda3" "/media/nik/ISOIMAGE"' exited with non-zero exit status 32: mount: /dev/sda3 is write-protected, mounting read-only
mount: /dev/sda3 is not a valid block device

Your mount point is

Quote:

/media/nik/ISOIMAGE

This implies it's an external USB drive? How did you partition it? What file system did you put on it? (gparted is probably one of the easier ways to find out)

As zhjim says, it appears to think it's a CDROM.

Play Bonny!