Hi 01.12.2015 16:20, Erich Titl пишет: > Hi Andrew >> >>> >>> And SoC network drivers also may be compiled in kernel, not >>>> as modules to save some space. Rest of modules (like additional USB >>>> network adapters, iptables modules and so on) will be compiled as >>>> modules. >>> >>> I suggest to build a new modules.sqfs with the kernel directory level >>> removed and permanently mounted to /lib/modules/kernel. This way we >>> can avoid to have to copy the modules to /lib/modules completely. We >>> just need to run depmod once the squashfs is mounted, then module >>> loading can be done from the squashfs directly and if user specific >>> modules are needed they can either be on an OverlayFS or be written to >>> a subdirectory of /lib/modules. >>> >> Permanent squashfs mounting IMHO isn't a good idea - this will require >> permanent underlying device mounting. This is OK when we use mtdblock >> which contains squashfs - but device's flash size usually 4-8 MB, so >> there'll be no free place for modules.sqfs on it. Rest of files will be >> loaded from USB flash, or even from network. > > Ahh, you don't like the underlying FS be mounted to access the > squashfs file. We could always use a raw partition for this purpose. In any case - we can't remove USB flash, this may cause kernel panic.
>> >> This may be done as option - but IMHO it'll be useful only in some rare >> cases. Because main feature of LEAF - it doesn't require HDD/flash >> storage that is always mounted. > > True, but we could still do that, as /lib/modules is not really needed > once the system is running, except for the rare case when you need to > load another module. We could mount modules.sqfs, load the modules > from there and then just unmount it without copying the module to ram. > There would be no modules cluttering valuable ram disk. For the > occasional loading of modules we could build a wrapper for modprobe. > Yes, delayed unmounting (for ex., by S99umount) may be better solution. ------------------------------------------------------------------------------ Go from Idea to Many App Stores Faster with Intel(R) XDK Give your users amazing mobile app experiences with Intel(R) XDK. Use one codebase in this all-in-one HTML5 development environment. Design, debug & build mobile apps & 2D/3D high-impact games for multiple OSs. http://pubads.g.doubleclick.net/gampad/clk?id=254741911&iu=/4140 _______________________________________________ leaf-devel mailing list leaf-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/leaf-devel
