On 23/11/16 09:40, Enrico Joerns wrote: > On 11/22/2016 12:54 PM, Kristian Amlie wrote: >> On 22/11/16 12:10, Patrick Ohly wrote: >>>> ... >>> >>> All of these introduce some special mechanism. Let me propose something >>> that might integrate better with the existing tooling: >>> >>> The "rootfs" directory gets redefined as representing the entire virtual >>> file system. When creating a disk image, it gets split up into different >>> partitions based on the image configuration. >>> >>> For example, the /home or /data directories in the rootfs could hold the >>> content that in some image configurations goes into separate partitions. >>> >>> The advantage of this approach is that the tooling for staging content >>> for image creation does not need to be changed. The same staged content >>> then can be used to create different images, potentially even using >>> different partition layouts. >> >> That's a very good idea. I think it beats all of my suggestions! > > I totally agree with this solution, because it is the same approach we > are already using for several years.
Good! Sounds like there are several votes in favor of this proposal then. > Instead of wic we are using the genimage tool > (http://public.pengutronix.de/software/genimage/) together with a Yocto > class for easing image creation, but its pretty much the same concerning > its base purpose. > > We called the option to split up 'mountpoint' while assuming that the > splitted partition will be mounted to the same location in the file > system it was taken from. > > An example configuration would look like this (stripped down to the > essential parts): > > image my-disk-image { > [...] > partition root { > image = "rootfs.ext4" > [...] > } > > partition home { > image = "home.ext4" > [...] > } > } > > image rootfs.ext4 { > [...] > mountpoint = "/" > } > > image home.ext4 { > [...] > mountpoint = "/home" > } > > Maybe a similar approach could be used in wic, too. Yes, this looks very similar "in spirit" to what I'm thinking of right now. -- Kristian -- _______________________________________________ Openembedded-core mailing list Openembedded-core@lists.openembedded.org http://lists.openembedded.org/mailman/listinfo/openembedded-core