Date: Tue, 28 Sep 1999 02:32:26 -0500 (CDT) From: Eduardo Viruena Silva <mrspock@esfm.ipn.mx> To: freebsd-questions@freebsd.org Subject: msdos file systems and frozen systems... Message-ID: <Pine.BSF.4.05.9909280150490.44375-100000@gina.esfm.ipn.mx>
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Hello there!
I'm looking for your advice.
I have a FreeBSD 3.2 box. When I first installed FreeBSD I had a win95
slice in my hard drive. My hard disk was not completely used, so I
created another slice for FreeBSD and I installed it there.
When the time came, I ask to the installation program to mount my win95
slice on /win95 directory, so this directory was created and the file
system mounted on it.
But... while created, /win95 directory got permission for reading and
writing only by root. Now, I did not notice it until...
One day I tried to write on this directory as a simple user (not root),
my freebds box tried to do it and apparently it did it!! but suddenly it
got frozen.
I said to myself: "Well, it happens on normal win95 operation, it must
happen in every operating system that handles this kind of file
systems..." ha ha ha...
No, more seriously, I did not know what happend until fortunately I read
the /win95 directory permissions.
win95 file systems cannot safe the owner of the files they hold and when
they are mounted on freebsd directories they inheireted the owner and
permission of the mounting directory. Installation program creates
mounting directories without writing permissions for common users and when
it is made, the system gets frozen. Even more, I do not know how it
happend but I lost the FreeBSD DISK LABEL on my FreeBSD slice!!!
What about give mounting directories permission "1333" universal writing
but adding sticky bit, writing permision only for owner, in this case,
root. Common can write files there, they can execute programs and
directories but only root can erase them.
I do not know how wise is what I'm trying to do, so please can you tell me
your oppinion about it? Getting frozen systems is kind of scary. Erased
FreeBSD disk labels can make people take their own lives. I know giving
universal writing permision is not a good practice but there is no harm
using these permissions and root's privacy is kept, because there is no
reading permission on msdos file systems. On the other hand... I can use
mtools and forget all this mess but, I think mounted msdos file systems
are more user-friendly.
You are making a very good job with this incredible operating system:
FreeBSD
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