[root@test root]# mount /dev/hda2 on / type ext3 (rw) none on /proc type proc (rw) usbdevfs on /proc/bus/usb type usbdevfs (rw) none on /dev/pts type devpts (rw,gid=5,mode=620) none on /dev/shm type tmpfs (rw)
[root@test /]# cd /usr [root@test usr]# cp bin testbin cp: omitting directory `bin' [root@test usr]# ls bin etc include kerberos libexec sbin src test121212 X11R6 dict games java lib local share test tmp [root@test usr]#
----- Original Message ----- From: "linux-os" <linux-os@xxxxxxxxxxxx>
To: "Pankaj Agarwal" <pankaj@xxxxxxxxxxxx>
Cc: <linux-kernel@xxxxxxxxxxxxxxx>; "Linux Net" <linux-net@xxxxxxxxxxxxxxx>
Sent: Thursday, February 03, 2005 9:05 PM
Subject: Re: Query - Regarding strange behaviour.
On Thu, 3 Feb 2005, Pankaj Agarwal wrote:
Hi,
In my system there's a strange behaviour.... its not allowing me to create any file in /usr/bin even as root. Its chmod is set to 755. Its even not allowing me to change the chmod value of /usr/bin. The strangest part which i felt is ...its shows the owner and group as root when i issue command "ls -ld /usr/bin" and not allowing root to create any file or directory under /usr/bin and not even allowing to change the chmod value. The error is access permission denied... I can change the chmod value of /usr and other directories under /usr/...but not of bin....
I need your help/support. kindly let me know what all can i try to resolve this problem.
Thanks and Regards,
Pankaj Agarwal
See if your file-system has gotten hurt. Boot with init=/bin/bash and execute `/sbin/fsck -f /` to force a check of the root file-system.
The next check is to see if you can fix the protections when you are the only one accessing the file-system:
# mount -n -o remount / # re-mount root r/w # cd /usr # chmod 755 bin # ls -la # See if it worked # unmount /
The next check is to replace the /usr/bin directory. Since `mv` and `mkdir` are in /bin, the following should work.
# mount -n -o remount / # re-mount root r/w # cd /usr # mv bin foo # Rename 'strange' directory # mkdir bin # Make a new one # cd foo # Change to original # mv * ../bin # Rename all contents to new # cd .. # rmdir foo # Remove bad directory # chmod 755 bin # Fix protection # umount /
After you have fixed things, you don't have to re-boot. Just execute:
# exec /sbin/init auto
Cheers,
Dick Johnson
Penguin : Linux version 2.6.10 on an i686 machine (5537.79 BogoMips).
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