Creating RAM disks as a non root user.

Wolfgang Denk wd at denx.de
Wed Feb 5 08:52:01 EST 2003


In message <2702075D4DE2B043BF5EB82E9CFAD45B093BBB at mail1.mediatrix.com> you wrote:
>
> Here is the recipe we use to mount ramdisk images without being a root user.
...
> Note that the option 'user' in fstab allows any user to mount/unmount this specific entry.

Just _mounting_ ramdisk images is not the problem...

> You can either create new ramdisk images, or mount already existing ones (very useful!).

...but to create a useful ramdisk image you will usually also have to
create the device nodes in the /dev directory. And this is  something
that  really  _requires_ root permissions (or it would otherwise open
huge security issues).


And from the system administrator's point of view allowing anybody to
mount any images he likes is a serious security issue, too.

Best regards,

Wolfgang Denk

--
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd at denx.de
"If the code and  the  comments  disagree,  then  both  are  probably
wrong."                                                - Norm Schryer

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