(urgent) Set pdf File Permissions on a NTFS USB Flash Disk

tatlisub · 2013-02-11 18:43:54

hey guys i am unable to set group permissions via file properties gui, it reverts back to "none" when i choose read/write. others computers see the file 0 kb.

disk format ntfs
urgentt

Last edited by tatlisub (2013-02-11 18:46:27)

dura · 2013-02-11 18:50:54

Go root and try it.

tatlisub · 2013-02-11 18:52:55

still cant it reverts to none

tatlisub · 2013-02-11 18:55:35

you can see here caps

http://porndevice.com/u/bD

bigbenaugust · 2013-02-11 18:57:57

Other than "why did someone format a flash drive NTFS?"...

the man page for the ntfs-3g driver says:

man ntfs-3g wrote:

Access Handling and Security
By default, files and directories are owned by the effective user and
group of the mounting process, and everybody has full read, write, exe-
cution and directory browsing permissions. You can also assign permis-
sions to a single user by using the uid and/or the gid options together
with the umask, or fmask and dmask options.
Doing so, Windows users have full access to the files created by
ntfs-3g.
But, by setting the permissions option, you can benefit from the full
ownership and permissions features as defined by POSIX. Moreover, by
defining a Windows-to-Linux user mapping, the ownerships and permis-
sions are even applied to Windows users and conversely.
If ntfs-3g is set setuid-root then non-root users will be also able to
mount volumes.

You may have to dump the GUI and remount it from the command line with some specific options to make it work right.

Also, isn't NTFS write support still experimental?

tatlisub · 2013-02-11 18:59:06

fat32 will resolve the issue?

bigbenaugust · 2013-02-11 19:01:16

tatlisub wrote:

fat32 will resolve the issue?

Reformatting the flash drive fat32 might resolve the issue if you don't mind losing what's on the drive now.

tatlisub · 2013-02-11 19:03:46

okay thanks

dura · 2013-02-11 19:10:40

I was going to say

sudo chmod ugo=rw filename

but it seems someone who knows what they're talking about has responded.

bigbenaugust · 2013-02-11 19:54:08

dura wrote:

I was going to say
sudo chmod ugo=rw filename
but it seems someone who knows what they're talking about has responded.

It might be a little more complicated than that on an NTFS filesystem. Just like in OpenAFS, the standard unix permissions can be meaningless and you have to get your hands dirty editing the ACLs. But in the case of the NTFS driver, you might run into things that don't work 100% yet.

In any case, FAT32 is generally recommended as an exchange filesystem between different operating systems, as everybody and their mother can read/write FAT32 and the drivers are stable and mature in most if not all of these operating systems.

dura · 2013-02-11 20:06:41

Nice info, but you're wrong. My Mum cannot read or write FAT32. Not a chance.

bigbenaugust · 2013-02-11 20:08:44

dura wrote:

Nice info, but you're wrong. My Mum cannot read or write FAT32. Not a chance.

lol
If she has a Linux, Mac or a Windows box, or even a Solaris machine, she can. Perhaps not directly, though. smile

dura · 2013-02-11 20:41:54

I tell her to do something and she touches the screen. It's not touch screen.

bigbenaugust · 2013-02-11 20:52:31

dura wrote:

I tell her to do something and she touches the screen. It's not touch screen.

Well then, your mother's a very special lady. wink

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#1 2013-02-11 18:43:54

(urgent) Set pdf File Permissions on a NTFS USB Flash Disk

#2 2013-02-11 18:50:54

Re: (urgent) Set pdf File Permissions on a NTFS USB Flash Disk

#3 2013-02-11 18:52:55

Re: (urgent) Set pdf File Permissions on a NTFS USB Flash Disk

#4 2013-02-11 18:55:35

Re: (urgent) Set pdf File Permissions on a NTFS USB Flash Disk

#5 2013-02-11 18:57:57

Re: (urgent) Set pdf File Permissions on a NTFS USB Flash Disk

#6 2013-02-11 18:59:06

Re: (urgent) Set pdf File Permissions on a NTFS USB Flash Disk

#7 2013-02-11 19:01:16

Re: (urgent) Set pdf File Permissions on a NTFS USB Flash Disk

#8 2013-02-11 19:03:46

Re: (urgent) Set pdf File Permissions on a NTFS USB Flash Disk

#9 2013-02-11 19:10:40

Re: (urgent) Set pdf File Permissions on a NTFS USB Flash Disk

#10 2013-02-11 19:54:08

Re: (urgent) Set pdf File Permissions on a NTFS USB Flash Disk

#11 2013-02-11 20:06:41

Re: (urgent) Set pdf File Permissions on a NTFS USB Flash Disk

#12 2013-02-11 20:08:44

Re: (urgent) Set pdf File Permissions on a NTFS USB Flash Disk

#13 2013-02-11 20:41:54

Re: (urgent) Set pdf File Permissions on a NTFS USB Flash Disk

#14 2013-02-11 20:52:31

Re: (urgent) Set pdf File Permissions on a NTFS USB Flash Disk

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