no write access for users, only root.

linuxpokernut · 11-24-2008, 01:02 AM

I had a similar problem a while back.
http://www.linuxquestions.org/questi...ssions-573012/

Whenever I boot my machine and go into root i have full permissions. Whenever I log in as a user however I cannot get write mode working. Logging into root will let me save files as root.

I tried swtting up my user as a sudoer. This was actually a challenge as I have never used vi and or visudo, but i conquered that issue. Short story long, sudo works but again no rwx for user.

So what I am guessing is take the solution from the thread I posted and insert it into the appropriate startup script.

Is this correct or is there an easier solution I skimmed over in slackbook?

billymayday · 11-24-2008, 01:34 AM

What directory are you in?

If it's your home, what are permissions of the user's home directory (ie /home/username) and ownership?

What's the file system?

Is this a mounted partition (ie are you within a mountpoint below /)?

saulgoode · 11-24-2008, 01:57 AM

If I understand correctly, you have a VFAT partition and you wish to have regular users provided with write access to it. You have found that the following command sets things up properly and therefore wish to have this "autoconfigured" at bootup.

Quote:

mount -t vfat /dev/sda1 /media/hdd -o rw,uid=0,gid=104,umask=000

The "proper" way to accomplish this at bootup is to edit the /etc/fstab file and add the following line:

Quote:

/dev/sda1 /media/hdd vfat rw,uid=0,gid=104,umask=000 1 2

linuxpokernut · 11-24-2008, 01:59 AM

Ah, it is my storage drive I am talking about, although I have 3 drives that mount at bootup to the /drives/ directory I created specificly for that durning instalation.

Code:

jpo@slackin:/drives$ ls -l
total 12
drwxr-xr-x 2 root root 4096 2008-11-19 22:30 flash/
drwxr-xr-x 1 root root 4096 2008-11-19 15:29 storage/
drwxr-xr-x 1 root root 4096 2008-11-23 16:44 winblows/
jpo@slackin:/drives$ chmod storage +w

So this doesent do anything...

Code:

jpo@slackin:/drives$ sudo chmod +w storage
Password:
jpo@slackin:/drives$ ls -l
total 12
drwxr-xr-x 2 root root 4096 2008-11-19 22:30 flash/
drwxr-xr-x 1 root root 4096 2008-11-19 15:29 storage/
drwxr-xr-x 1 root root 4096 2008-11-23 16:44 winblows/

Neither does this...

Code:

jpo@slackin:/drives$ sudo chmod 777 storage
jpo@slackin:/drives$ ls -l
total 12
drwxr-xr-x 2 root root 4096 2008-11-19 22:30 flash/
drwxr-xr-x 1 root root 4096 2008-11-19 15:29 storage/
drwxr-xr-x 1 root root 4096 2008-11-23 16:44 winblows/

But unmounting and remounting with proper permissions works great.

Code:

jpo@slackin:/drives$ sudo umount /dev/hdb1...
jpo@slackin:/drives$ sudo  mount -t ntfs /dev/hdb1 /drives/storage -o rw,uid=0,gid=104,umask=002
jpo@slackin:/drives$ ls -l
total 12
drwxr-xr-x 2 root root 4096 2008-11-19 22:30 flash/
drwxrwxr-x 1 root  104 4096 2008-11-19 15:29 storage/
drwxr-xr-x 1 root root 4096 2008-11-23 16:44 winblows/

So I have no problem re-mounting the drive(s) with proper permissions and getting the correct access mode. I don't quite know where in the bootup process the script is that mounts those drives, I just want to alter it slightly so I dont have to do this every time i log in.

billymayday · 11-24-2008, 02:03 AM

Should be in /etc/fstab shouldn't it?

linuxpokernut · 11-24-2008, 02:34 AM

Quote:

Originally Posted by saulgoode

If I understand correctly, you have a VFAT partition and you wish to have regular users provided with write access to it. You have found that the following command sets things up properly and therefore wish to have this "autoconfigured" at bootup.

The "proper" way to accomplish this at bootup is to edit the /etc/fstab file and add the following line:

It was in that example (fat32). Its NTFS in this one. Looks like we were replying at the same time.

one more question, how do I find or assign group ID to each user. In the example from the previous thread i was running fedora and gid 104 worked fine. It does not apply here i dont think as i cannot save, however the folder is green which means it worked, now i just have to make it work for the correct user.

Once I figure that out I can edit those lines into my /etc/fstab. I completely forgot about that file because i was reading slackbook and it mentions several scripts that it loads and this one

Quote:

rc.local
Contains any specific startup commands for your system. This is empty after a fresh install, as it is reserved for local administrators. This script is run after all other initialization has taken place.

looked like it would work, but didnt have the command in it. I didnt want to tell my drives to mount here if something that was loading before it already told them to mount a certain way.

**
reading is fundamental. its in /etc/passwd
shows me my gid and uid so i can use either.**

linuxpokernut · 11-24-2008, 03:06 AM

Code:

jpo@slackin:~$ sudo umount /dev/hdb1
Password:
jpo@slackin:~$ sudo  mount -t ntfs /dev/hdb1 /drives/storage -o rw,uid=500,umask=000
jpo@slackin:~$ ls -l /drives
total 12
drwxr-xr-x 2 root root 4096 2008-11-19 22:30 flash/
drwxrwxrwx 1 jpo  root 4096 2008-11-19 15:29 storage/
drwxr-xr-x 1 root root 4096 2008-11-23 16:44 winblows/

Gets me in there but when I go to save a file, access denied. I am stumped.

*Problem solved, thank you*
If anyone wants to explain what the 2 numbers after the umask in the fstab file signify however i would like to understand better. Thank you for the help.

/dev/sda1 /media/hdd vfat rw,uid=0,gid=104,umask=000 1 2

billymayday · 11-24-2008, 03:47 AM

[deleted]

saulgoode · 11-24-2008, 04:06 AM

The fifth field of an fstab entry indicates how often the partition should be backed up (1=every day, 2=every other day, etc). I believe it is ignored in modern GNU/Linux systems but Patrick seems to put a "1" there and I trust his judgment.

The sixth field indicates the order in which 'fsck' is to be executed during bootup. The root partition should be checked first and so the sixth field for its entry should "1". The order of other partitions should not matter and their entries should contain a "2" (unless 'fsck' is never to be run for the partition, in which case the sixth field should contain "0").

Perhaps for a VFAT partition, the sixth field should be set to "0" -- I don't use Microsoft partitions so I'm not sure.

linuxpokernut · 11-24-2008, 04:39 AM

thanks. it really helps to understand what i'm doing.

rworkman · 11-24-2008, 03:15 PM

http://slackwiki.org/Windows_Partitions

billymayday · 11-24-2008, 04:22 PM

If you unmount both of those partitions, what does ls -l /drives show?

linuxpokernut · 11-24-2008, 06:26 PM

Quote:

Originally Posted by billymayday

If you unmount both of those partitions, what does ls -l /drives show?

Code:

jpo@slackin:~$ ls -l /drives
total 12
drwxr-xr-x 2 root root 4096 2008-11-19 22:30 flash/
drwxr-xr-x 2 root root 4096 2008-11-19 22:29 storage/
drwxr-xr-x 2 root root 4096 2008-11-19 22:29 winblows/

billymayday · 11-24-2008, 06:41 PM

Can you try

mount -t ntfs /dev/hdb1 /drives/storage -o rw,uid=your_uid,gig=your_gid

and

mount -t ntfs /dev/hdb1 /drives/storage -o rw,umask=000

linuxpokernut · 11-24-2008, 08:55 PM

Quote:

Originally Posted by billymayday

Can you try

mount -t ntfs /dev/hdb1 /drives/storage -o rw,uid=your_uid,gig=your_gid

and

mount -t ntfs /dev/hdb1 /drives/storage -o rw,umask=000

Yes, I tried both of those before I edited my fstab, neither method worked, once i did that (edited fstab) everything works fine. I was just asking about the 5th and 6th fields as I wanted to know what i was doing, not just cut/paste/forget.