Sion Khalaf wrote: > There is no possibility to do the first solution. > The second, regarding drive mounting, is it ram drive? No, loopback filesystem. > If so, How to mount it ? mount -o loop <filename> <mount point> To create the file, first create a suitably-sized file with e.g.: dd if=/dev/zero out=loopfile.dat bs=1m count=100 #100Mb then create a filesystem on it with: mke2fs -F loopfile.dat > Anyway, I am looking for a way to make my file system read only. > That will surely, be the best solution. > > My application is writing into certain folder, not on the physically / > File system, > So I can make the / FS read only, Do you have an idea how can I do that > ? Normally, directories which need to be writable, e.g. /var and /tmp, would use separate partitions. Those partitions would be writable (but probably using the noexec and nodev options), but the root filesystem would be read-only. The most common issue with making the root filesystem read-only is that "mount" tries to write to /etc/mtab, which will fail. Either use the -n option to mount or recompile mount to use e.g. /var/run/mtab instead. -- Glynn Clements <glynn@xxxxxxxxxxxxxxxxxx> - : send the line "unsubscribe linux-admin" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
