cant mount partition sda3

Karottenbaum · 10-07-2011, 06:07 PM

Im not able to mount sda3.
just so you know, i installed xubunto and this long i know linux....

i created all three partitions as primary, when it came to sda3 (supposed to be for movies and music) i didnt know what mountpoint to select (dont know anything about mountpoints)..
but i choosed opt/ as mountpoint, bcause i didnt know what to do... as far as i remember i formated it as FA32 (i know not good)

i found a file named opt/ which has the size of ma partition but i cant write on it,

something else: is it a bad idea to create all three partitions as primary?

how can i make xubuntu make use of the SWAP?

sudo fdisk -l

Code:

Disk /dev/sda: 80.0 GB, 80026361856 bytes
255 heads, 63 sectors/track, 9729 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0xb8f0ffa4

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1        1824    14647296   83  Linux
/dev/sda2            1824        2189     2929664   82  Linux swap / Solaris
/dev/sda3            2189        9730    60572672   83  Linux

corp769 · 10-07-2011, 06:32 PM

Why would you mount something to /opt? That is for programs, configurations, etc... Whenever you mount something, you need to create a new directory as a mount path. /media and /mnt are there for a reason, to keep your mount points within them. Create a new directory in /mnt and mount /dev/sda3 to it, and you will be good.

frankbell · 10-07-2011, 07:12 PM

You will probably want to put /dev/sda3 in your fstab.

Here's one of the clearest explanations of /etc/fstab that I've found:

http://www.tuxfiles.org/linuxhelp/fstab.html

Karottenbaum · 10-07-2011, 09:32 PM

ok thanks, ill try that tommorow - im allready tyred!
thanks alot

adventuremalcolm · 10-07-2011, 10:01 PM

Hi

an excellent document for understand what goes where in Linux is the Filesystem Hierachy Standard. You can get it a t http://www.pathname.com/fhs/pub/fhs-2.3.html

I hope you find it helpful.

Malcolm
-------------------------------

Quote:

Originally Posted by Karottenbaum

Im not able to mount sda3.
just so you know, i installed xubunto and this long i know linux....

i created all three partitions as primary, when it came to sda3 (supposed to be for movies and music) i didnt know what mountpoint to select (dont know anything about mountpoints)..
but i choosed opt/ as mountpoint, bcause i didnt know what to do... as far as i remember i formated it as FA32 (i know not good)

i found a file named opt/ which has the size of ma partition but i cant write on it,

something else: is it a bad idea to create all three partitions as primary?

how can i make xubuntu make use of the SWAP?

sudo fdisk -l

Code:

Disk /dev/sda: 80.0 GB, 80026361856 bytes
255 heads, 63 sectors/track, 9729 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0xb8f0ffa4

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1        1824    14647296   83  Linux
/dev/sda2            1824        2189     2929664   82  Linux swap / Solaris
/dev/sda3            2189        9730    60572672   83  Linux

Karottenbaum · 10-08-2011, 03:42 PM

thanks for the hints and links, was very helpful.

my fstab looks like this now.

Code:

# /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
# / was on /dev/sda1 during installation
/dev/sda1	 /		ext4    errors=remount-ro 0       1
/dev/sda3       /mnt/Data	ext4    defaults        0       2
/dev/sda2	swap	swap	pri=42	 0 0

/dev/sda3 gets mountet and i made a shortcut to my desktop, but i cant write on it. there is just one lost+found file...
should i edit the read/write permissions or is something else wrong?

thanks alot people!

yancek · 10-08-2011, 06:55 PM

Quote:

/dev/sda3 gets mountet and i made a shortcut to my desktop, but i cant write on it.

You mean you can't write to it as a normal user? or as any user? or even when using sudo? If you want users to be able to write to it you do need to give permission to users to do so. You can change the fstab entry from defaults to auto mount also as well as give users access and make it read/write, if you want?

Quote:

there is just one lost+found file..

That's all there should be there because you haven't written/copied any directories/files there because you haven't given permission to users to do so.

Karottenbaum · 10-09-2011, 12:59 PM

sorry im a little overused with all that configuring...

can you give me a hint how to grant users permission?
i have only one user who uses sudo if necessary.

yancek · 10-09-2011, 01:44 PM

Since sda3 is mounted at /mnt/Data, you can find out what the actual permissions are by typing this command in a terminal:

sudo ls -l /mnt/Data/

This will show permissions for user/group as well as who owns the file and the group which has access. If you don't understand it, post the output.

The command to change permissions is: chmod
You can post back the output of the ls command or read: man chmod or google chmod or changing permissions in linux to get more information.