10712 2016-11-23 14:18:07 +0000 Have wic split the rootfs filesystem and distribute specified subdirectories to different partitions 2017-02-16 12:11:30 +0000 1 1 7 Build System, Metadata & Runtime OE-Core Scripts and Tools unspecified x86 Multiple RESOLVED FIXED Medium enhancement Future 1 kristian.amlie kristian.amlie eduard.bartosh kristian.amlie maciek.borzecki mariano.lopez ross.burton --- --- Yes (doc changes required) oldest_to_newest 68536 0 kristian.amlie 2016-11-23 14:18:07 +0000 Originally discussed in mailing list thread: http://lists.openembedded.org/pipermail/openembedded-core/2016-November/129036.html The motivation is to be able to generate multiple partitions using content from different parts of the rootfs filesystem. Current proposal is: This can be done by extending existing rootfs plugin. It should be able to do 2 things: - populate content of one rootfs directory to the partition. We can extend syntax of --rootfs-dir parameter to specify optional directory path to use - exclude rootfs directories when populating partitions. I'd propose to introduce --exclude-dirs wks parser option to handle this. Example of wks file with proposed new options: part / --source rootfs --rootfs-dir=core-image-minimal --ondisk sda --fstype=ext4 --label root --align 1024 --exclude-dirs data --exclude-dirs home part /data --source rootfs --rootfs-dir=core-image-minimal:/home --ondisk sda --fstype=ext4 --label data --align 1024 part /home --source rootfs --rootfs-dir=core-image-minimal:/data --ondisk sda --fstype=ext4 --label data --align 1024 68537 1 kristian.amlie 2016-11-23 14:19:56 +0000 On the mailing list, Maciej Borzecki pointed out that --exclude-dir may be a bad name since we do still want to the directory to be present. Can I suggest --exclude-content-of instead? 68540 2 eduard.bartosh 2016-11-23 15:47:39 +0000 It makes thanks for me. Thanks for pointing out. What about a bit shorter name --exclude-content ? 68567 3 kristian.amlie 2016-11-24 07:27:10 +0000 --exclude-content it is! 68575 4 eduard.bartosh 2016-11-24 15:27:28 +0000 Latest proposal is to use this syntax to exclude content or directories: --exclude-path data/* - exclude content, but keep the directory --exclude-path data - exclude directory and content --exclude-path data/tmp/t* - exclude files and directories that match wildcard --exclude-path data/db/tmp - exclude subdirectory and its content 68577 5 kristian.amlie 2016-11-24 15:53:38 +0000 Looks good to me. I'm still awaiting consensus on the mailing list, but I can start with the heart of the problem and make adjustments later. I'll get started on this tomorrow. 68579 6 kristian.amlie 2016-11-24 16:43:52 +0000 After further discussion on mailing list, latest proposal is to use rsync-style: --exclude-path data/ - exclude content, but keep the directory --exclude-path data - exclude directory and content --exclude-path data/db/tmp/ - exclude subdirectory content only --exclude-path data/db/tmp - exclude subdirectory and its content This doesn't necessarily invalidate the earlier glob proposal, but I will not focus on that in the first iteration at least. 68593 7 eduard.bartosh 2016-11-25 12:51:04 +0000 Reassigning to Kristian as he'll be implementing this. 69409 8 kristian.amlie 2016-12-30 08:07:35 +0000 This is likely to be merged soon, but there was talk about having an exclude option for the do_image_ext4 and similar functions as well, in addition to wic. We are going to need both in Mender. Should this ticket cover that or should I make a new one? 70281 9 kristian.amlie 2017-01-31 13:08:59 +0000 Setting milestone to "Future" for now. This is ready to be merged, but I don't know when the maintainers will do that. It might need a rebase, but I'll look at that after the sysroot issues have died down a bit, I don't think anyone has any spare cycles ATM. 70394 10 eduard.bartosh 2017-02-02 17:54:13 +0000 Cristian, can you rebase your changes on top of recent master and send them again for review? I'll try to push maintainers to merge them. 70413 11 kristian.amlie 2017-02-03 12:03:32 +0000 Thanks, Ed. I will repost shortly, I just need to retest them with the latest poky. 70448 12 kristian.amlie 2017-02-06 16:22:11 +0000 Rebased and retested patchset here: http://lists.openembedded.org/pipermail/openembedded-core/2017-February/132280.html 70449 13 eduard.bartosh 2017-02-06 16:27:47 +0000 Kristian, thank you! I'll try to make sure your patchset is merged this time. 70733 14 eduard.bartosh 2017-02-16 11:52:15 +0000 the patchset has been merged to master. 70734 15 kristian.amlie 2017-02-16 12:11:30 +0000 Thank you, Ed!