Formatting the internal MMC to native format for using it for libraries - possible?
 

As the internal memory of the n810 is very limited and gets full when many apps are installed I thought of doing the following:

mkdir /media/mmc2/libs/
mv /usr/lib/[large library file] /media/mmc2/libs/
ln -s /media/mmc2/libs/[large library file] [large library file]

so the OS 'thinks' the file is still in /usr/lib but physically on mmc2.
But in most cases this does not work: the mmc2 is FAT formatted.
Can I reformat the mmc2 to native unix file system in order to make this work ?

Any experiences on this ?

Re: Formatting the internal MMC to native format for using it for libraries - possibl
 

I have both the internal and external cards on my n810 formatted as ext3 and am perfectly happy. It may prevent me from using the cards as USB drives on a PC, but I've never done that anyway.

I'm not sure if there are any issues with moving a library there and symlinking it, but I can't think of any reason why there should be a problem. I do that sort of thing all the time on other systems (desktop and server).

(For grins I just moved a random library to the card on my n810, symlinked it, ran ldconfig, and loaded it via LD_PRELOAD. Seems to work just fine.)

But, what's the problem when you try to put libraries on a FAT-formatted card? The file size limit on FAT is 2GB, and I doubt any libraries exceed that. If it's a problem with permissions you should be able to overcome it with appropriate mount options. If you connect to a PC via USB though, the card will be unmounted from the n810. Depending on the library that could cause some real problems.

Re: Formatting the internal MMC to native format for using it for libraries - possibl
 

Booting from a flash card is the recommended solution to the space problem. Anything else is generally less stable and less safe.

Re: Formatting the internal MMC to native format for using it for libraries - possibl
 

What is ldconfig and LD_PRELOAD ? Is that needed for symlinking a library ? How should I do this ?

Re: Formatting the internal MMC to native format for using it for libraries - possibl
 

But when booting from the flash card it is not possible to update the firmware to a new version unless reflash completely and do a lot of cumbersome things ....

Re: Formatting the internal MMC to native format for using it for libraries - possibl
 

Really? I find SSU works fine with a flash card setup and reinstalling bootmenu is trivial.