General :: Cannot Change File Permissions On A Mounted File System
Apr 6, 2010
I have an ntfs partition that I wish to access as a normal user(non-root). For this I did the following. As root I created a folder /windows and did a chmod 777 -R on /windows. Then I added the following line to /etc/fstab
Now, the partition is mounted alright but the problem is that when any other user (non-root) creates a files in /windows (say by executing touch newfile) the newly created file has the owner and group set as root. The non-root user can create the file and he can also delete the file, however, he cannot change the permissions of the file and also the owner:group is always set as root:root. How do I get across this problem, i.e. how do I mount a partition, so that a non-root user can also change the permissions and ownerships of the files he creates.
I'm on OS X and mount a network share from my Windows XP machine. Files by default have the rwx (700) permissions. What OS X option I need to change, that the files will have rw (600) permission?
Maybe this question also applies for Linux mounting a Windows network share.
any way to change file permissions of NTFS drives? All my C programming files resides in a NTFS drive and I need to set execute permision on them in order to run. I tired chmod -Rv 777 /media/Programming. and also tired chmod 775 *.* after entering the folder in which all my files resides. but both these commands doesn't seem to have any effect on the files. I know NTFS doesn't use Unix file system and chmod command goes in vain.
I've checked out a subversion project with source c++ files in netbeans 6.8 on Red Hat 5.5. My machine has a dual boot with windows xp and RHEL 5.5 so I checked out the project on a folder called winshare which is a shared drive/partition (E: under xp) allowing both operating systems to access the contents. I've Fedora as virtual machine on xp and wanted to be able to work on the source seamlessly whether using fedora or RHEL.
Problem is that Netbeans is able to build the source just fine but I can't seem to run the generated executable. It has -rw-rw---- permission and the owner is the same user logged in (let's say user1) but no matter what I do, whether I change permissions as user1 or root issuing command chmod 777 -R /dir/where/file/is does not have any effect whatsoever on the executable as well as any .cpp or .h files (nothing that I need exectue permissions on .cpp but just to make a point).
Finally I managed to install my printer/scanner drivers.The last thing I need to do is to add the following two lines to 40-libsane.rules (which is a read only file):# Brother scanners ATTRS{idVendor}=="04f9", ENV{libsane_matched}="yes".How can I change permissions for this file or add these lines without changing permissions?
I'm using Thunderbird 3.x on Ubuntu (Linux). When I save an attachment to my computer, the file gets saved with only the owner (me) having read/write permissions. In other words, the file gets saved as -rw
Frequently, I want my group to have permission, or to give read permission to everyone. Is there a way to do change Thunderbird's default file permissions so I don't have to do this manually every time?
I own an Acer Aspire One which has Linpus Lite installed. Last night I attempted to delete a couple of files only to find they are read only and that I cannot change the permissions by right clicking and changing the drop down menu from read only.
These aren't protected files or anything, they are files I've downloaded or created myself (one using the onboard web cam to test it).
I attempted to play with Terminal for a bit but as a newbie I got easily lost, not like I can fall back on command prompt knowledge from Windows!
I think it's somehow connected with the user which accesses these docs or tries to change the permissions. I also tried with an su- which meant I was using Terminal as root, however, I wasn't sure how I could then set the permissions for a particular file/folder within the file system.
I am using Gentoo Linux and for a while now, the root file system is mounted read-only on booting. For obvious reasons, this is quite annoying as most services do not start up correctly (I do not use a separate file system for /var). After the system is up, I have to log in, remount the root file system read-write, fix /etc/mtab, mount all other file systems in from /etc/fstab and then start up all the missing daemons. I know that there are ways to make a system run properly with a read-only file system, but I would rather restore the old behaviour of a writable root file system.
The strange thing is that after running mount / -o remount,rw, the file system is mounted in writable mode without any errors. I suspected some problem with fsck, but now I have disabled automatic file system checks on the partition (tune2fs -c0 -i0).When I run dmesg, only these lines mention the partition at all, although I am not sure if not something gets lost because /var/log is not writable:
EXT3-fs (sda5): mounted filesystem with writeback data mode</code> EXT3-fs (sda5): using internal journal The line in /etc/fstab looks like this:
The problem arises when I try to create a sub-directory inside the mounted directory. All the newly created sub directories become write protected.
I am accessing this file system from R software and it needs to write/create directories in side this mounted directory.
how can newly created sub-directories will become automatically writable, so that R can create new sub-directories and write data inside those directories.
I'm new to Ubuntu Linux but have many years on windows platform. Please can someone help me with how to change the following items.
No.1 I would like to change the HORRIBLE!! YAK!! brown background color behind the word Ubuntu in the start up screen when the machine loads up (before the login). I have located the image file for this which I have found to be: /usr/share/images/xsplash/bg_2560x1600. jpg but the OS says that root is the owner and that I don't have permission to change this. So how can I change this for a color I do like.
No.2 I would also like to change the login dialogue screen style. I know this is possible but again I'm fumbling to see how I can do this. I have tried with the start up manager but every attempt fails, the settings don't take. Once again I suspect permissions are at the bottom of the problem?
No.3 Would like to have a colorful splash screen image on boot up, I've managed to remove the old one (small white 3 ring ubuntu logo on black background) but havent been able to install or replace with a new one. Its been incredibly frustrating, I'm feel sure I'm missing something simple here. Wondering if its permissions yet again?
Anyone who can offer help on any of the above, guidance or advise me would be much appreciated. Please bear in mind that I'm still very much feeling my way with Linux so keep it simple.
I want to simply mount an ext4 file-system onto a normal mount point in Ubuntu (/media/whereever), as read-writable for the current logged-in user, i.e. me.
I don't want to add anything into /etc/fstab, I just want to do it now, manually. I need super-user privileges to mount a device, but then only root can read-write that mount. I've tried various of the mount options, added it into fstab, but with no luck.
A non techie friend has helped an even less techie friend by contacting me by email to discuss an ailing laptop. A few emails were exchanged, with more details, and it was not looking good because it seemed that suddenly the CD drive was not responding, nor any USB devices, the wireless icon was gone, but Ubuntu still seemed to work (for now), with wired ethernet also working. I was struggling to think of what could be done, with the favourite routes of Live CD and Live USB apparently gone.
After a few more hours - another email: 'It's now working! After so many reboots it checked disc for errors and repaired itself! Is there some way of doing that when needed anyway?'I see there is 'Disk Utility', and this would presumably fit the bill, but how does it do checks and repair when the damaged file system is being run, and is currently *mounted*? I thought utilities like fsck(?) could only be run on unmounted file systems? Have I misunderstood the disk utility fs check repair function? And anyway, what might be a good answer to my (nontechie) friend's question 'After so many reboots it checked disc for errors and repaired itself! Is there some way of doing that when needed anyway?'
For the record: (quote) It is a toshiba EA60-155 Model number PSA67E-00300C8J. He put in extra ram to install ubuntu. He thinks he may have deleted something! There is a 'trash' file on his USB drive with loads of stuff in it and he doesn't know how or why but because it won't now read the drive on her laptop we cant replace it! (end quote)
im trying to execute a file. When I try i get the message:
The file ...Installer.exe is not marked as executable. If this was downloaded or copied from an untrusted source, it may be dangerous to run...
So when I right click on the file and select properties>permissions and check the 'allow executing file as program' it instantly unchecks the box. I can't check the box.
I'm trying to install a script and I need to change the permissions of a file within the script, but I am being denied from doing so. I know that I could change the password of ROOT, but I don't really feel like going through that again when I can just use 'gksudo nautilus' in Terminal. How can I change the permission without being on Root?
I recently did a fresh install of Ubuntu Maverick, and have found a slight issue with file permissions. Before starting the installation I backed up all my files to an ext3 partition, then during the process I moved all of these files over to an NTFS partition that I am using as a joint storage location for both Ubuntu 10.10 and Windows 7. Upon booting into my fresh Maverick install I found that all the files on my NTFS partition are now owned by root and I am unable to change the permissions using the conventional methods I am used to. I have tried using the GUI method through the properties of the folder, I've also tried using chown and chmod, but all to no avail... No matter how I make the change to the permissions, it will always revert back to root within seconds. who desperately wants full read/write access back to their data?
I recently backed up my home folder onto another HD. When I tried to transfer the files from the other HD back to the original HD after a fresh ubuntu install I noticed all my files were restricted to root access. Even after moving the files back via root access I can still only access them that way. Is there a way to mass change the permissions to all the files and folders within my original home folder?
my dad has been using Ubuntu for a few weeks now and likes it, however he's having some issues regarding read-only files. He's a doctor and frequently has to download word files to edit, however they always download as a read-only file. While this isn't particularly difficult to do, he finds doing it tiresome and because he isn't the most proficient PC user, may have difficulty with it when I return to school after the summer. I was hoping that there's some way to change the default settings so that all files downloaded are writeable.
Additionally, he has a number CD-RWs which he both retrieves files from and stores them to, however when trying to access these CDs he is told that they are read-only. Right clicking on the CD and trying to change the access permissions doesn't work (says that permissions can't be changed because the disc is read-only).
I've been having a very strange problem, and not sure for how long... but basically, my system wont allow me to change file permissions, even in root mode! I run Ubuntu 10.10 with Gnome and LXDE, kernel 2.6.35-30-generic. It's particularly problematic if I want to run some binaries or programs that you need a shell script to start up (i.e. any new version of Firefox). The usual right-click then going into permissions doesn't work, it just resets whatever changes I make. The weirdest thing is that using the chmod command as root also has no results! The files keep the exact permissions they had before...
when I got following some information using fdisk -l,there were some invalid information about system name.I installed file system reiserfs, xfs on sdb6, sdb7.but the system didn't recognizes disk's file system name.
i want secondary users can able to change the files permissions of primary group?user MAC is having www as a primary and httpd as secondary group. But he want to change the file permissions (chmod) httpd group files. Is it possible or not? I think its not possible. If it`s possible then let me know how?
I'm having a problem changing permissions on a network share. The share is mounted on my server using cifs. It has been working perfectly for a week or more. I use a bash script to copy files from a temporary folder on the server to folders on my HTPC that are mounted on my server.The server is Ubuntu Server 10.04 and the HTPC is XBMC Live Dharma.
The problems began when I added chmod lines to my bash script to temporarily change permissions. I had the entire mounted share set to 777 on the server, and I was worried that I might accidentally delete the files or something, so I set it to 555 and then modified my script. This was not intended to be a permanent solution, but I wanted to use it as a band-aid solution until I figured out how to do it properly. The mounted folder is called "tabitha" and it is mounted in the home folder of the user "turvy" on the server.The script looks like this:
I just found that I could perform write operation using a normal user account to a file system I mounted with the commands as followed:
sudo mount -t ntfs /dev/sda1 /mnt/disk/
This is the corresponding entry in the output of "mount" command: /dev/sda1 on /mnt/disk type fuseblk (rw,nosuid,nodev,allow_other,blksize=4096)
As far as I remember, when using a normal user account, I had to use "sudo" to perform any write operations (mkdir, rm, etc) to a device mounted using "sudo". But now it seems to be changed.
Do I remember wrong, or did Karmic have any updates change this setting? (I never manually changed user settings, except that I added a root user, but I never used it.)
OS: Karmic(up2dated) Kernel: Linux stephen-laptop 2.6.31-17-generic #54-Ubuntu SMP Thu Dec 10 16:20:31 UTC 2009 i686 GNU/Linux
I've migrated to Suse from Mandriva. I installed all my backup folders/files to my "home" folder but they have come up locked. I remember in Mandriva to change the permissions I pressed Alt F2 and then entered a command. How do I do it in Suse?
I have two drives in my computer: a 160GB and an 80GB. The 80 holds Ubuntu, the home folder, etc. The 160 is for other files. I need to change the read-write permissions on the 160, but I can't. If I do it through the GUI (right-click>permissions) it just changes back instantly. If I do it through the command line (even with sudo), it has no effect.
I'm working on a remote Ubuntu 9.10 server, which is accessed via VPN. I installed Joomla, but had difficulty uploading new components, which I traced to a file permissions problem. I used FileZilla to FTP onto the site and tried to make the chmod changes I needed, but the commands kept failing. Eventually, I contacted the sys admin and told him I thought that there was an ownership problem with the directories. He checked and told me that I was logging in with exactly the same user name and password that he was using (it's not a live system currently) and that he could make chmod changes without any problems. Because all my attempts were still failing, he eventually did the following:
chown -R administrator:administrator /var/www
/var/www is where all the Joomla files are stored and Administrator is the user name.Now I find that when I run a chmod command in FileZilla, the server reports that it worked (see below):
However, if I go back and check the tmp folder permissions, I find that they are still set to 777.This still looks like an ownership problem to me, but I don't understand why the server seems to think that the chmod changes are working, when they aren't.
