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Old 11-23-2011, 12:28 AM   #1
Glenn D.
Registered: May 2009
Location: ACT - Australia
Distribution: Opensuse x86_64 (Latest)
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Why do I get a permission denied from a script ?

Why do I get a permission denied from a script ?
Thanks Glenn

Using openSUSE 12.1 64 bit
Sequence of steps:

# id
uid=0(root) gid=0(root) groups=0(root)

# ll
total 8
drwxr-xr-x 2 root root 40 Nov 23 14:09 disk
drwxr-xr-x 2 root root 40 Nov 23 14:09 disk2
-rwx------ 1 root root 29 Nov 23 14:22 off
-rwx------ 1 root root 39 Nov 23 17:20 on

# cat on
mount /dev/sdb6 /media/disk

# chmod 700 on

# ./on
bash: ./on: Permission denied

# dmesg
[ 2858.804066] REISERFS (device sdb6): found reiserfs format "3.6" with standard journal
[ 2858.804111] REISERFS (device sdb6): using ordered data mode
[ 2858.817790] REISERFS (device sdb6): journal params: device sdb6, size 8192, journal first block 18, max trans len 1024, max batch 900, max commit age 30, max trans age 30
[ 2858.819147] REISERFS (device sdb6): checking transaction log (sdb6)
[ 2858.874905] REISERFS (device sdb6): Using r5 hash to sort names
Old 11-23-2011, 12:31 AM   #2
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Try 755 instead.
Old 11-23-2011, 10:12 AM   #3
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Originally Posted by ukiuki View Post
Try 755 instead.
Why would this work? If owner (root in this case) has execute perm, then why does the group bit matter?

I tried creating a script with 700 perm and was able to execute it.
Old 11-23-2011, 12:07 PM   #4
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Auto-mounting of file systems under /media typically includes the "noexec" option. Try
mount -o remount,exec /media/disk
Since it's a script, you can also run it by invoking the shell directly:
sh ./on
For that case, only read permission is needed.

Last edited by rknichols; 11-23-2011 at 12:12 PM. Reason: Add shell invocation alternative
1 members found this post helpful.
Old 11-23-2011, 01:51 PM   #5
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try moving the script to your home directory.
i never have figured out why but scripts won't
run from a disk like that.


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