Re: [SD4L-user] sdmount "could not lock /etc/mtab" unless run by root

[Hans-Ulrich J. <han...@t-...>]

Hello Jonathan,

I would recommend building ScramDisk as root.
Perhaps the installed binaries from you build
don't belong to user root. In that case the
SUID bit wouldn't help.

By the way I have just uploaded packages for
Ubuntu 10.04. When installing Ubuntu 10.04
I checked carefully what additional packages
are required for building ScramDisk. I had to
install

g++
qt3-dev-tools
texlive-latex-base
texlive-pstricks
texlive-fonts-recommended
texlive-lang-german

The last package, however, is only needed
for the German documentation. If it isn't
installed, hyphenations in the German
documentation will be wrong.

Installing texlive packages can be completely
avoided by downloading English and German
documentations, copying them into the docs
folder and renaming them to scramdisk.pdf
and scramdisk_de.pdf. If these two files are
newer than the other files in the docs folder
make will recognize that it hasn't to do
anything within the docs folder.

Best regards,
Ulrich

Jonathan Coles wrote:
> Hello Ulrich,
> 
> The SUID bit is exactly as you described. Your binary works fine.
> No problem with "could not lock /etc/mtab".
> 
> So, the problem is in my build. As you pointed out in another thread,
> I should use qt3 libraries, not qt4. Perhaps that will fix the problem.
> Other than that, I don't know what I can change about how I build the 
> program.
> Do I need to run make as root? I've seen no messages about permissions 
> problems.
> 
> I appreciate you making binaries available.
> But I also like the idea of having the source available and building it 
> myself.
> 
> Thanks.
>