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Old 11-26-2006, 05:59 PM   #1
paul123
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Question Permissions change but dont???


Loaded xearth and checked permissions. They were read only to user and owned by root.

In terminal I changed the permissions to executable by user (chmod 755 xearth) then checked the change in terminal and everthing was fine.

-rwxr-xr-x 1 root root 183592 Jan 1 2006 xearth*

Still didnt execute.

In kde graphical directories when I right click on executable icon to get the permissions they still show read only for user???

Why?

Sorry im still learning!
 
Old 11-26-2006, 06:25 PM   #2
matthewg42
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Could be that the file is on a device which is mounted with the noexec option. Open a terminal, cd to the directory where the file is, and type:
Code:
mount |fgrep $(df . |tail -n 1 |cut -d" " -f1)
Any hopefully you'll get one line of output. You'll see the mount options in brackets at the end of the line.
 
Old 11-27-2006, 02:10 AM   #3
paul123
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well this is what I get:

/dev/hdb11 on /usr type ext3 (rw)

device partion 11, the partion is /usr and the type of partition is ext3 ? (rw)? ????
 
Old 11-27-2006, 08:24 AM   #4
matthewg42
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Quote:
Originally Posted by paul123
well this is what I get:

/dev/hdb11 on /usr type ext3 (rw)

device partion 11, the partion is /usr and the type of partition is ext3 ? (rw)? ????
The first column is the device node (in the /dev directory). hdb means IDE channel 1, slave device. 11 is the partition number, but it's not 100% simple. 1-4 are the primary partitions. You're only allowed to have 4 of these (according to the IBM PC standard). However, there's a work-around this limitation. You can turn one of them into an "extended" partition, which is a container for "logical" partitions. These get numbers starting from 5 (so you can tell just from the number if it's a primary or a logical partition). So you may have something like this:
  • /dev/hdb1 is a primary partition with windows in it.
  • /dev/hdb2 is an extended partition filling the rest of the disk
  • /dev/hdb3 and /dev/hdb4 are primary partitions which don't exist
  • /dev/hdb5 is the first logical partition which resides "inside" /dev/hdb2
  • /dev/hdb6 is the second logical partition which resides "inside" /dev/hdb2
  • etc.
So it looks like you have at least 7 (!) logical partitions, the seventh being /dev/hdb11. By the way, hda is the primary master IDE drive, hdc is the secondary master, and hdd is the secondary slave.

The /usr part says where in Linux's virtual filesystem the partition is mounted. In your case, this is /usr. All the files and directories you see in /usr or a sub-directory of that are contained on the partition /dev/hdb11 unless some other device takes a sub-directory. For example, /usr/share/man and it's sub-directories might be on a different device.

ext3 is the partition type. Consider it a format. ext3 is commonly used on Linux systems. ReiserFS is another common one. FAT and NTFS are the windows partition types. HFS and HFS+ is used on the Mac. ISO9660 is the format for CDROMs etc etc. There are many in use for differrent purposes.

Lastly the (rw) means the partition is mounted read-write. If the noexec flag which I mentioned in my origial post were present, it would appear here. It is not, so my idea as to the cause of your problem is incorrect! I'll have another think.
 
Old 11-27-2006, 11:32 AM   #5
paul123
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/usr, /opt, /tmp, /, /boot, /var, /home



WindoZe on other drive, dual boot pc.
 
Old 11-27-2006, 12:05 PM   #6
matthewg42
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Wow, that's serious partitioning!

Umm, anyhow, back to the original question... Umm. Seems like there's more than one xearth if konqueror is showing different perms to ls. What is the output of this command:
Code:
locate /xearth |grep 'xearth$' |xargs ls -ld
One more thing - consider using xplanet - it's really nice.
 
Old 11-27-2006, 12:53 PM   #7
paul123
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Ok I will check when I get back to my Linux PC.

However just a bit of background to this problem. I run Mandriva 2007 and yesterday I went into configure your PC and looked for installable packages using the interface. I was looking for Xearth because I ran this years ago when I had a dabble with Linux.

I found the package and it wasnt already installed. At the same time I noticed there was an Xplanet and an Xfishtank that I could also install. So I installed all three packages from the interface. None of them run! All down as read only to user.

Am I being a complete newbie somehow?

Although im not at my machine to check, I seem to remember finding them after installation using kde find, xearth etc. plus it found some libs.

The directory im trying to execute them from is /usr/X11R6/bin.

This is where I changed the permission for xearth. The very same place where KDE graphically says I dont have permission! ???

In fact as I think about this im wondering if KDE is screwed?

Although ive only been up and running Linux two weeks Ive had a few problems with packages running and then not running. The other day I had Kscd running then the following day it said I didnt have permission, then I played a cd in Xine fine but when I went back to Kscd it ran ok!???? I also got a message kexec.io not found when trying to run kscd but then everything was fine. However I didnt seem to do anything to correct it!

Will let you know how it goes when I get home.
 
Old 11-27-2006, 01:44 PM   #8
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Is this possibly just a path problem? If you run
Code:
./xearth
(yes the ./ is important) in the directory that the xearth file resides in, what happens?

It's a long shot, but unlike Windows, Linux does not automatically include the current directory in the PATH statement. Therefore, if you're trying to run an executable in a directory that's not in the PATH, then you have to specify "this directory" by using ./

I think just a plain old . will work as well, but not sure and not in front of a Linux box at the moment.
 
Old 11-27-2006, 01:47 PM   #9
matthewg42
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I'd expect my package manager to set the correct permissions. I can't comment on Mandriva - never used it. It's is a mystery to me. Lets see what the output of that command turns up. You might need to execute updatedb (as root) before it turns up anything.
 
Old 11-27-2006, 02:31 PM   #10
paul123
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Well I will be home late this evening but your last post runs me slap bang into another issue.

I came across the updatedb command the other day and thought that sounds a neat way of locating packages.

so I su in konsol and did updatedb and it returned some thinking like cant run at this security level??

will give you the output later.

The only security level I can remember setting was at installation which defaulted to 'high' havent got a clue what that did or does or how I change or even whether I should????

 
Old 11-27-2006, 03:34 PM   #11
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Quote:
Originally Posted by matthewg42
I'd expect my package manager to set the correct permissions.
True, but I didn't see anything in his post that indicated he installed this app via a package manager.
 
Old 11-27-2006, 05:20 PM   #12
paul123
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This is the output from the command $ ocate /xearth |grep 'xearth$' |xargs ls -ld

-rw-r--r-- 1 root root 516 Jan 1 2006 /usr/lib/menu/xearth
drwxr-xr-x 2 root root 1024 Nov 26 23:18 /usr/share/xearth
-rwxr-xr-x 1 root root 183592 Jan 1 2006 /usr/X11R6/bin/xearth


and the output if run as root was:

-rw-r--r-- 1 root root 516 Jan 1 2006 /usr/lib/menu/xearth
drwxr-xr-x 2 root root 1024 Nov 26 23:18 /usr/share/xearth
-rwxr-xr-x 1 root root 183592 Jan 1 2006 /usr/X11R6/bin/xearth




The result from # updatedb -u was:

slocate: fatal error: Security level must be 0 or 1.

ok now to ./xearth

in the actual xearth directory hangs the konsol so open another terminal and run ps -aux

and these are the lines from bottom of list:

root 5951 0.1 0.9 3668 1804 pts/2 S+ 23:17 0:00 ./xearth
darkness 5952 11.0 7.6 32432 14660 ? S 23:18 0:00 konsole [kdeini
darkness 5953 1.3 0.9 4124 1868 pts/1 Ss 23:18 0:00 /bin/bash
darkness 5988 0.0 0.5 2432 1000 pts/1 R+ 23:18 0:00 ps -aux

Now im going to get me books out for ps -aux.

Last edited by paul123; 11-27-2006 at 05:24 PM.
 
Old 11-27-2006, 05:58 PM   #13
matthewg42
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Quote:
Originally Posted by paul123
This is the output from the command $ ocate /xearth |grep 'xearth$' |xargs ls -ld

-rw-r--r-- 1 root root 516 Jan 1 2006 /usr/lib/menu/xearth
drwxr-xr-x 2 root root 1024 Nov 26 23:18 /usr/share/xearth
-rwxr-xr-x 1 root root 183592 Jan 1 2006 /usr/X11R6/bin/xearth

The result from # updatedb -u was:
slocate: fatal error: Security level must be 0 or 1.
locate will only show files which were on the system the last time updatedb was run. I don't know why you get this error when you run updatedb. It's not possible to know if this was a pre-existing copy of the program, and you've installed a new one since then. This is a little problematic. OK, we can see if there is another xearth program with this command (please paste the result here):
Code:
( IFS=: ; for d in $PATH; do ls -l $d/bash 2>/dev/null; done )
Quote:
ok now to ./xearth

in the actual xearth directory hangs the konsol so open another terminal and run ps -aux

and these are the lines from bottom of list:

root 5951 0.1 0.9 3668 1804 pts/2 S+ 23:17 0:00 ./xearth
darkness 5952 11.0 7.6 32432 14660 ? S 23:18 0:00 konsole [kdeini
darkness 5953 1.3 0.9 4124 1868 pts/1 Ss 23:18 0:00 /bin/bash
darkness 5988 0.0 0.5 2432 1000 pts/1 R+ 23:18 0:00 ps -aux
Well, it looks like xearth is running there. As your non-root user, try executing xearth with the full path:
Code:
/usr/X11R6/bin/xearth
... and see if that helps.

Quote:
Now im going to get me books out for ps -aux.
You don't need a book. Linux comes with all the documentation you'll ever need. Just type:
Code:
man ps
If you're looking for an over-view of command line programs, try here.
 
Old 11-28-2006, 02:44 AM   #14
paul123
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/usr/X11R6/bin/xearth

hangs the konsol and no actvity from pc harddrive.

( IFS=: ; for d in $PATH; do ls -l $d/bash 2>/dev/null; done )

the output -rwxr-xr-x 1 root root 725160 Aug 24 16:05 /bin/bash*



I would just like to say I appreciate everybodies help. Although I think we must be on a loser here.

Im thinking about going back to the installation disk and trying to see if I can change security level so that I can run updatedb.

First I will try and find if the security level is configurable from terminal.

Oh one other thing (and this happened with xine aswell) the xearth doesnt appear in my menus, with xine i found the executable and linked it to icon on desktop using full path and it was fine. Obviously that wont work with xearth because path doesnt execute.

Also the same evening that I installed xearth I installed xtraceroute and that did appear in th e menus and did run ok. So some apps work and some dont.
 
Old 11-28-2006, 02:49 AM   #15
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What does
file /usr/X11R6/bin/xearth
have to say about the file?


Cheers,
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