10073 2016-08-03 01:12:04 +0000 wic: generic bootloader-agnostic EFI plugin 2018-03-06 11:09:38 +0000 1 1 7 Build System, Metadata & Runtime BSPs bsps-oe-core 2.2 x86 Multiple RESOLVED FIXED Medium+ enhancement 4.99 10084 10966 11291 1 jianxun.zhang california.l.sullivan brian.avery eduard.bartosh haris.okanovic randy.macleod sgw stephano tim.orling --- --- No (bug/feature does not impact docs) oldest_to_newest 64821 0 jianxun.zhang 2016-08-03 01:12:04 +0000 wic: generic bootloader-agnostic EFI plugin This change tries to achieve more by doing less. The current design around EFI plugin and wks files are bootloader- specific in logic and usage. Current approach may cause fragmentation in functionality between bootloader features provided from OE and features in wic plugin and wks files in maintainence. For example, a build for a machince could have default boot entry files built from OE, but still uses a wks file to construct a direct-boot image. The two usages are not always synchronized. The idea is to have a generic EFI plugin to generate bootable EFI image compilant with UEFI spec, but don't care which bootloader and its configuration data any more. Developers are responsible to provide content of a boot image, which could be customized via OE or not, to plugin. This should streamline the design and functions between wic and OE. Some options only supported in the existing wic EFI plugin could be added in OE as a consequence if OE doesn't have them. I attached a WIP patch. What missed is a black list parameter and some patches in OE to support options we strip out from this generic EFI plugin. 64822 1 3335 jianxun.zhang 2016-08-03 01:13:01 +0000 Created attachment 3335 WIP: patch 67795 2 jianxun.zhang 2016-10-31 19:20:38 +0000 This task has been pending for a while. I will have a look on the recent changes in wic area in OE before resuming this task. 67821 3 eduard.bartosh 2016-11-01 15:45:21 +0000 Can we utilise/extend existing bootimg-partition or rootfs plugin for this purpose? If we can have a directory populated with EFI artefacts by bitbake build then wic task is simple - to copy it to the boot partition. This is exactly what booting-partition plugin is for. 67824 4 jianxun.zhang 2016-11-01 16:59:33 +0000 Ed, Thanks for bring this bootimg-partition in my sight. Actually, we need an interface to deploy a non-bootloader-related database file to ESP for RMC feature. So far we are using EFI_PROVIDERS as a workaround in OE build and the existing bootimg-efi only deploy files for a bootloader. This is where this task is derived. I just checked an old build: () RMC database file is present in ./tmp/deploy/images/intel-corei7-64/rmc.db. This location should be $DEPLOY_DIR_IMAGE. () From YP doc. source files for $IMAGE_BOOT_FILES are in $DEPLOY_DIR_IMAGE. () $IMAGE_BOOT_FILES, from my quick look in code, should be the source of bootimg-partition plugin. I feel rmc.db can be deployed if we switched to bootimg-partition plugin. I do see EFI binary of bootloader in ./tmp/deploy/images/intel-corei7-64/, but don't see the configuration files of the bootloader populated in this directory. I will do a build to verify it. 67856 5 eduard.bartosh 2016-11-02 11:05:16 +0000 Let me emphasise my opinion on this: wic should operate with already prepared content of partitions with as little modifications as possible. Even if booting-partition can't do what is needed we should modify it or rootfs plugin, but we should avoid configuring bootloaders or do modifications on wic side. 71125 6 eduard.bartosh 2017-03-08 14:43:04 +0000 Started to work on this. 73156 7 eduard.bartosh 2017-05-10 08:33:34 +0000 Instead of introducing yet another wic plugin it uses existing APIs from EFI_PROVIDER classes to populate ${WORKDIR}/bootfs directory with EFI artifacts and bootloader configuration. This directory can be used by wic rootfs plugin to put into boot partition of the image. Example kickstart file and 2 test cases were added to wic test suite to better illustrate the approach. I personally like this approach much better than duplicating oe image creation functionality in wic plugins. This way we can have the code in one place and bootloaders can be configured the same way for oe and wic images. The implementation has been sent to the mailing list for review: http://lists.openembedded.org/pipermail/openembedded-core/2017-May/136463.html 73185 8 eduard.bartosh 2017-05-11 13:33:57 +0000 sent v2: http://lists.openembedded.org/pipermail/openembedded-core/2017-May/136548.html 73257 9 eduard.bartosh 2017-05-15 12:14:19 +0000 sent v3: http://lists.openembedded.org/pipermail/openembedded-core/2017-May/136656.html 74085 10 brian.avery 2017-06-13 17:51:14 +0000 got dropped? 74143 11 eduard.bartosh 2017-06-14 14:15:08 +0000 hopefully not. My patchset will probably be merged. However, there is an alternative proposal: http://lists.openembedded.org/pipermail/openembedded-core/2017-June/137441.html 74821 12 eduard.bartosh 2017-07-06 15:19:22 +0000 Assigning to Saul for experiments. The idea is to take this further and make bootfs populated by the recipe. I tried to do that, but failed to find a way to make unique partition UUID generated in the recipe and synchronise it with wic. It was not easy even in my initial implementation (I did it in .bbclass by merging 2 tasks into one: http://lists.openembedded.org/pipermail/openembedded-core/2017-June/138204.html) Please, reassign back to me when you find out how we should proceed further. 78322 13 sgw 2017-11-22 17:17:58 +0000 Cal is now looking into this an has WIP that uses a rootfs postprocess function to copy the bootfs http://git.yoctoproject.org/cgit/cgit.cgi/poky-contrib/log/?h=clsulliv/image-creation-rebased This allows for recipes to install rather then deploy bootfs and bootloader items, this allows for layers to add bootfs/bootloader items. We are also looking into how to address the multi-kernel, but the challenge is who actually owns writing bootloader entries. 78327 14 california.l.sullivan 2017-11-22 18:48:35 +0000 With the above branch anything installed to /boot/ ends up in the boot partition with no additional work. It also has multi kernel support thanks to Harris' multi kernel patch. Some limitations/issues: * Must use efi-bootdisk.wks.in as EFI_PROVIDER * core-image-minimal doesn't install the preferred kernel to /boot/ * In other images the preferred kernel ends up in /boot/ twice, once as bzimage and once as its whole name due to my copy function * Only systemd-boot and grub-efi bootloaders have packages that install to /boot/ so far * live images (with rootfs.img) can't be created with this yet 79565 15 stephano 2018-02-22 23:07:55 +0000 Moving this to 2.6. The EFI enhancements make this project much easier, and those should hopefully make 2.5. 79611 16 california.l.sullivan 2018-02-26 20:51:22 +0000 I sent a pared down version of my patchset to the list: http://lists.openembedded.org/pipermail/openembedded-core/2018-February/147837.html It does not include the random UUID stuff, as I was unable to get it working sanely before M3. Instead we assume /dev/sda, but its overwritable. 79722 17 california.l.sullivan 2018-03-06 11:09:38 +0000 v3 of the patchset was accepted. See here (and the previous 20ish commits): https://git.yoctoproject.org/cgit/cgit.cgi/poky/commit/?id=ff9a4d598919e6f148c01017f2fc8ecc784b722d I'll open a new bug for the UUID portion to be done in 2.6. 3335 2016-08-03 01:13:01 +0000 2016-08-03 01:13:01 +0000 WIP: patch 0001-wic-generic-bootloader-agnostic-EFI-plugin.patch text/plain 7924 jianxun.zhang RnJvbSA1NjhkMDU4M2FlMzE4MDg2NmViOGRhZDU3NmE5Njk5ZTFjYTVjNGY5IE1vbiBTZXAgMTcg MDA6MDA6MDAgMjAwMQpGcm9tOiBKaWFueHVuIFpoYW5nIDxqaWFueHVuLnpoYW5nQGxpbnV4Lmlu dGVsLmNvbT4KRGF0ZTogVHVlLCAyIEF1ZyAyMDE2IDE3OjUwOjIwIC0wNzAwClN1YmplY3Q6IFtQ QVRDSF0gd2ljOiBnZW5lcmljIGJvb3Rsb2FkZXItYWdub3N0aWMgRUZJIHBsdWdpbgoKVGhpcyBj aGFuZ2UgdHJpZXMgdG8gYWNoaWV2ZSBtb3JlIGJ5IGRvaW5nIGxlc3MuCgpUaGUgY3VycmVudCBk ZXNpZ24gYXJvdW5kIEVGSSBwbHVnaW4gYW5kIHdrcyBmaWxlcyBhcmUgYm9vdGxvYWRlci0Kc3Bl Y2lmaWMgaW4gbG9naWMgYW5kIHVzYWdlLiBDdXJyZW50IGFwcHJvYWNoIG1heSBjYXVzZSBmcmFn bWVudGF0aW9uCmluIGZ1bmN0aW9uYWxpdHkgYmV0d2VlbiBib290bG9hZGVyIGZlYXR1cmVzIHBy 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