----- Original Message ----- > From: "Fabian Deutsch" <fabiand@xxxxxxxxxx> > To: anaconda-devel-list@xxxxxxxxxx > Sent: Wednesday, April 9, 2014 11:05:28 AM > Subject: Installing image payloads > > Hey, > > as mentioned in my earlier email I'm working on oVirt Node. > > One special thing about Node is that we deploy an image, forming the > rootfs, and not packages which then form the rootfs. > > Currently we have our own installer carrying all the necessary bits to > do this. > > I now wonder if we could probably add some features to anaconda to > deploy an image, instead of packages. Support for this already exists. All you have to do is create a new class based on pyanaconda.packaging.ImagePayload. See the classes in livepayload.py for examples. > > The basic idea is that the rootfs is rolled out (as in dd'ed) using an > existing image, and not yum (or the other file based solutions). > > Note: Important to note here is that the image should be copied/dd'ed as > is, not file-wise copied into a new FS (liek it's happening with the > liveimg payload IIUIC). This may introduce limitations on the possible storage layouts, which is the main reason we switched from copying the image ala dd to using rsync. > > The idea is to roll out the image into a LV, then create a write-able > snapshot or thin volume and use that as the rootfs. > > Form that point on there shouldn't be a to big difference between a file > based deployment and the image based one. > Ok - Granted. There will surely be some more details which need to be > addressed, e.g. the bootloader. > > Any thoughts on this and can someone maybe tell if this is doable with > anaconda? It is definitely doable. You will have to write your own Payload class and you may have to do some hacking to pull off the snapshot bit you described. > > Thanks > fabian > > _______________________________________________ > Anaconda-devel-list mailing list > Anaconda-devel-list@xxxxxxxxxx > https://www.redhat.com/mailman/listinfo/anaconda-devel-list _______________________________________________ Anaconda-devel-list mailing list Anaconda-devel-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/anaconda-devel-list
