glug: Debian: impossibile cancellare file

[Massimo Rossi]

Buongiorno a tutti,
problemino con debian, avete idea del motivo per cui non posso 
cancellare un file come root?
E' una 3.0 unstable con kernel 2.6.12, ma avevo lo stesso problema con 
il 2.4.26, quindi non credo c'entri il kernel

> debian:/# rm -f /data/fileserver_old/projects/tlcws/cd_demo_iso/make_cd.sh
> rm: cannot remove 
> `/data/fileserver_old/projects/tlcws/cd_demo_iso/make_cd.sh': 
> Operation not permitted
>
>
> debian:/# ls -Rla /data/fileserver_old/
> /data/fileserver_old/:
> total 12
> drwxrwxrwx   3 root root 4096 Aug 12 13:19 .
> drwxrwxrwx  16 root root 4096 Aug 11 15:41 ..
> drwxrwxrwx   3 root root 4096 Aug 30 16:33 projects
>
> /data/fileserver_old/projects:
> total 12
> drwxrwxrwx  3 root root 4096 Aug 30 16:33 .
> drwxrwxrwx  3 root root 4096 Aug 12 13:19 ..
> drwxrwxrwx  3 root root 4096 Aug 30 16:29 tlcws
>
> /data/fileserver_old/projects/tlcws:
> total 12
> drwxrwxrwx  3 root root 4096 Aug 30 16:29 .
> drwxrwxrwx  3 root root 4096 Aug 30 16:33 ..
> drwxrwxrwx  2 root root 4096 Aug 30 16:23 cd_demo_iso
>
> /data/fileserver_old/projects/tlcws/cd_demo_iso:
> total 12
> drwxrwxrwx  2 root root 4096 Aug 30 16:23 .
> drwxrwxrwx  3 root root 4096 Aug 30 16:29 ..
> -rwxrwxrwx  1 root root  308 Dec 17  2003 make_cd.sh


Grazie
Massimo