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Old 09-16-2005, 02:54 PM   #1
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Distribution: Kubuntu/Ubuntu 5.04
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accessing mounted partitions

Hey guys, I'm knew and this is my first time posting here. I'm also very knew to linux in general.

Here's my first question:

I have 3 hard drives on my computer one SATA and two altra ATAs. Windows XP Pro is on my SATA raptor, then Ubuntu/Kubuntu 5.04 is on my master ata drive ( hda ) and finally I have a ntfs partition on my third drive serving as my Win XP backup drive. What I want to do is to be able to mount my hdb drive so I can access my MP3s on linux. So here's what I do.

First I change to SU mode because only root can mount partitions I guess.
then I type the following

mount /dev/hdb1 /mnt

However, when I go to access it thorugh konqueror, I get access denied.

How do I get around that?

Thanks very much for any help!
Old 09-16-2005, 03:02 PM   #2
Registered: Nov 2004
Location: Germany
Distribution: Debian Testing
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grep /dev/hdb1 /etc/fstab
Is the output non-empty? If yes, does the line contain something like "user"? If yes, you should be able to mount it (as normal user) by saying
mount /mount/point
where /mount/point is the value of the second column of that line.
Old 09-16-2005, 03:06 PM   #3
Registered: Dec 2004
Location: Newport News, Virginia
Distribution: CentOS 4, FC4, Ubuntu Breezy/Dapper, Arch 0.7.1
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I may be telling why it is happening incorrectly, so someone please feel free to correct me... but here it is.

Because NTFS does not support traditional UNIX type file permissions, and uses Security Identifiers (SID) to enforce ACL's, Unix does not know how to assign user and group permissions to the mount. As a result, all files are automatically (and temporarily as not to damage the guest file system) set owner and group as the user who mounts the files. In this case, root!

As a normal user, you cannot read/write root's files. The workaround for this is to mount the file system with umask constraints. I'm assuming this is a single-user computer, and so setting a umask of 0000, which is essentially read/write/execute for user/group/all.

try this.
 mount /dev/hdb1 /mnt -o umask=000
This should mount the filesystem so you can now read it as a normal user. Keep in mind, this allows *any* user to read the files... and like I mentioned earler... could be a security issue.

from there, you should be able to add fstab entries to ensure mounting at bootime. Something like this:
 /dev/hdb1      /mnt     ntfs    user,umask=0000    0 0
Hope that helps you out! Good luck!

Old 09-16-2005, 04:19 PM   #4
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Thanks a lot jfryman, that worked perfect!

I added the entry in my fstab file and now it's mounted somewhere in my home folder every time i start linux.
Old 09-19-2005, 01:33 AM   #5
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In /etc/fstab you have

device /mount/point file system
/dev/hdb /mnt/windows NTFS

options fsck order
rw,users,noauto,gid=users,umask=0002,nls=utf8 0 0

You can't mount partitions in directories which have subdirectories, such as /mnt. You have to make a directory in /mnt, like /mnt/windows. Then you don't put any files or directories in there. You use it as a mount point.


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