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RazielFMX
l33t
Joined: 23 Apr 2005
Posts: 835
Location: NY, USA
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 Posted: Wed Jul 19, 2006 8:26 am Post subject: Read Only mount permissions for NTFS [SOLVED] |
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I'm not sure if this is the right place for this, but it seemed like a good place to start.
I just finished installing Gentoo on some free space I had on my primary HD. The second HD is all NTFS data, and primary partion of the primary drive is NTFS. Both of these I wish to mount read only into my limux box. Here is my fstab:
| Code: |
rogue ~ # cat /etc/fstab
# /etc/fstab: static file system information.
#
# noatime turns off atimes for increased performance (atimes normally aren't
# needed; notail increases performance of ReiserFS (at the expense of storage
# efficiency). It's safe to drop the noatime options if you want and to
# switch between notail / tail freely.
#
# The root filesystem should have a pass number of either 0 or 1.
# All other filesystems should have a pass number of 0 or greater than 1.
#
# See the manpage fstab(5) for more information.
#
# <fs> <mountpoint> <type> <opts> <dump/pass>
# NOTE: If your BOOT partition is ReiserFS, add the notail option to opts.
/dev/hda2 /boot ext2 defaults,noatime 1 2
/dev/hda4 / ext3 defaults,noatime 0 1
/dev/hda3 none swap sw 0 0
/dev/dvd1 /mnt/dvd auto noauto,ro,users 0 0
/dev/dvdrw /mnt/dvdrw auto noauto,users 0 0
/dev/fd0 /mnt/floppy auto noauto,users 0 0
/dev/hdb1 /XP_DATA ntfs defaults,ro,noatime 0 0
/dev/hda1 /XP_SYSTEM ntfs defaults,ro,noatime 0 0
# NOTE: The next line is critical for boot!
proc /proc proc defaults 0 0
# glibc 2.2 and above expects tmpfs to be mounted at /dev/shm for
# POSIX shared memory (shm_open, shm_unlink).
# (tmpfs is a dynamically expandable/shrinkable ramdisk, and will
# use almost no memory if not populated with files)
tmpfs /dev/shm tmpfs nodev,nosuid,noexec 0 0
#iPod entries
/dev/ipod /media/ipod vfat async,nodev,nosuid,users,rw,noauto 0 0
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This works great, except the XP* dirs are chmod'd 500 and everything in them as well. How can I make this so that users can read data in these drives (ie I want to access my mp3s and whatnot from windows until I can make this box 100% linux, copy the second drive to the first, and make the second drive ext3, but that is a far away time). I don't want to have to be root to listen to my music.
Thanks!
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I am not anti-systemd; I am pro-choice. If being the latter makes you feel that I am the former, then so be it.
Last edited by RazielFMX on Thu Jul 20, 2006 9:19 am; edited 1 time in total |
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oKtosiTe
Tux's lil' helper
Joined: 15 Aug 2005
Posts: 122
Location: Halmstad, Sweden
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| Posted: Wed Jul 19, 2006 8:38 am Post subject: |
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You can set a uid or gid like so: | Code: | | /dev/hdb1 /XP_DATA ntfs defaults,ro,noatime,users,uid=1000,gid=1000 0 0 |
or change the umask to your liking. | the mount manpage wrote: | Mount options for ntfs
iocharset=name
Character set to use when returning file names. Unlike VFAT, NTFS suppresses names that contain unconvertible characters. Deprecated.
nls=name
New name for the option earlier called iocharset.
utf8 Use UTF-8 for converting file names.
uni_xlate=[0|1|2]
For 0 (or `no' or `false'), do not use escape sequences for unknown Unicode characters. For 1 (or `yes' or `true') or 2, use vfat-style 4-byte escape sequences starting
with ":". Here 2 give a little-endian encoding and 1 a byteswapped bigendian encoding.
posix=[0|1]
If enabled (posix=1), the file system distinguishes between upper and lower case. The 8.3 alias names are presented as hard links instead of being suppressed.
uid=value, gid=value and umask=value
Set the file permission on the filesystem. The umask value is given in octal. By default, the files are owned by root and not readable by somebody else. |
Personally I use a vfat partition to share between the various operating systems.
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NeddySeagoon
Administrator
Joined: 05 Jul 2003
Posts: 54422
Location: 56N 3W
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| Posted: Wed Jul 19, 2006 8:46 am Post subject: |
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RazielFMX,
Set umask=222 in the options in /etc/fstab. NTFS does not support permisions in the same way Linux does.
umask=222 is like for the entire NTFS filesystem. The bits set to 1 in umask are cleared in the permissions. You need the eXecute bit on directories or you cannot cd to them.
man mount explains all the options.
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Regards,
NeddySeagoon
Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail. |
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RazielFMX
l33t
Joined: 23 Apr 2005
Posts: 835
Location: NY, USA
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| Posted: Wed Jul 19, 2006 9:25 pm Post subject: |
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oKtosiTe: This box has been windows for two years and I had never planned on putting Linux on it (just talked about maybe doing it). Though I had always left a 30GB partition for linux. So, everything was NTFS. I'm kind of kicking myself for that right now. I like the GID idea, I could create a 'winxp' group or something.
NeddySeagoon: Thanks for the advice!
I can see I'm going to have some manpage reading to do, and should have done that in the first place!
Thank you both for your ideas and help!
I shall try your ideas when I get home 
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I am not anti-systemd; I am pro-choice. If being the latter makes you feel that I am the former, then so be it. |
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yabbadabbadont
Advocate
Joined: 14 Mar 2003
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Location: 2 exits past crazy
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RazielFMX
l33t
Joined: 23 Apr 2005
Posts: 835
Location: NY, USA
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| Posted: Wed Jul 19, 2006 11:58 pm Post subject: |
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Exactly what I need. When I get home, I will definately do as the WIKI says!
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I am not anti-systemd; I am pro-choice. If being the latter makes you feel that I am the former, then so be it. |
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Rafal_Glazar
Apprentice
Joined: 10 Jul 2004
Posts: 167
Location: Rzeszow, Poland
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| Posted: Thu Jul 20, 2006 6:02 am Post subject: |
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You may also look at this thread. It is about userspace NTFS driver with full write support.
_________________
"All I ask for is choice. I want to be able to go into any store you can buy a computer in and say, "I want ______ OS on this computer." Is that too much to ask? We can't always be looking out Windows. We also need to get work done." - Bill Olson |
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RazielFMX
l33t
Joined: 23 Apr 2005
Posts: 835
Location: NY, USA
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| Posted: Thu Jul 20, 2006 7:02 am Post subject: |
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That is pretty cool, but I only want to mount RO for now anyway. Once this box is full linux, all will be ext3, and all this work will go out the window. For now, i only want WinXp touching my critical data, since it created it in the first place.
Once everything is moved to either a mac (if I ever get the one I want), or network storage, this box will be 100% linux. Or, if I can get WoW to work on linux before any of the aforementioned occur... I can't wait to be done with Windows. I actually like XP, but want to jump ship before Vista is forces upon me.
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I am not anti-systemd; I am pro-choice. If being the latter makes you feel that I am the former, then so be it. |
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RazielFMX
l33t
Joined: 23 Apr 2005
Posts: 835
Location: NY, USA
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| Posted: Thu Jul 20, 2006 9:20 am Post subject: |
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These suggestions worked beautifully! I created a new group called ntfs, and set up a umask of 0227, with gid that of the ntfs group, and added myself to that group. Thank you!
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