Once again are you suggesting you have patch to do two parttiions?




On Fri, May 8, 2009 at 1:15 PM, lbcoder <[email protected]> wrote:

>
> Its actually little more than TRIVIAL to implement this.
>
> 1) ditch vfat on the sdcard. That filesystem is obsolete junk anyways.
> Change to something modern that supports permissions, i.e. ext2.
>
> 2) encrypt said filesystem using a key available in two locations; /
> data/app-private (or any other path owned by root with 700
> permissions) and user's google account. Being located in /data/app-
> private, it will be secured using the same scheme as current protected
> apps.
>
> 3) Multiple options here: a) unionfs internal and external filesystems
> into common area where applications are run from (this is how apps2sd2
> hack works), b) extend system to load applications from multiple
> locations. I prefer (b) since it would allow the apps to be separated
> in the drawer.
>
> 4) simple addition to the software handling mechanism in order to
> allow apps to be moved between internal and external filesystem. Note:
> there are 3 components to keep track of for each application; the apk
> file, the dalvik cache, and the application home directory.
>
>
> NOTE: before anyone says something about this scheme making it
> impossible to access the contents of the sdcard from a computer,
> though this is true, there are simple options to deal with this, for
> example, keep 2 partitions on the sdcard, an encrypted one and a non-
> encrypted one. Preferably, the encrypted one would ONLY be used to
> store what would otherwise be stored in /data/app-private.
>
>
>
> On May 8, 1:18 pm, Mark Murphy <[email protected]> wrote:
> > badgaz wrote:
> > > I know this has been discussed many times before but it is a
> > > particular point of Android that is irritating me.
> >
> > > There is no doubt that the demand is there for such as feature
> > > (http://code.google.com/p/android/issues/detail?id=1151&q=sd
> > > card&colspec=ID ) but Google are keeping quiet about it. This issue is
> > > restricting the success of the Market and making buying apps a
> > > difficult choice for customers when they know they'll probably end up
> > > having to delete it sooner rather than later. Some people seem
> > > concerned about the piracy implications of this but with the only
> > > current resolution being to root your device this issue is only making
> > > piracy worse and a secure method to install apps on an SD card would
> > > allow people to embrace the Market much more and improve sales.
> >
> > > There are a lot of G1s out there and I'm sure the HTC Magic is going
> > > to sell just as well. Lets get this issue fixed and get them buying
> > > apps on the Market yes?
> >
> > It feels like I just posted something like this five days ago...
> >
> > As has been discussed many times, it is not that easy to implement. It's
> > not impossible, just not that easy, particularly to work within the
> > existing Android security framework. Moreover, there are only so many
> > people on the core Android team with the expertise to implement it, and
> > there are other demands being made of their time.
> >
> > If you'd like to help make it happen, you could:
> >
> > -- Contribute engineering time and skill and write a patch
> >
> > -- Start and promote a fundable or pledgie or something to raise funds
> > from interested people, so the funders can hire somebody to build it
> >
> > -- Find ways to help simplify contributions to the open source project,
> > and hope that with fewer barriers, more people will submit patches, and
> > one of them will implement the feature you seek
> >
> > -- Pray that ADC II has a prize pool set up for firmware contributions
> > (instead of only for apps), and then try to help out some team working
> > to win an ADC II prize that is building an apps-on-SD feature
> >
> > -- Wait patiently for Android device manufacturers to offer more
> > built-in capacity, and then buy their devices instead of ones with
> > limited built-in capacity
> >
> > I am sure there are other constructive tactics; these are just a few.
> >
> > --
> > Mark Murphy (a Commons Guy)http://commonsware.com|
> http://twitter.com/commonsguy
> >
> > _The Busy Coder's Guide to Android Development_ Version 2.0 Available!
> >
>

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