I've spent some time lately on building custom full-disk images with a custom initramfs based on the initramfs-framework. The ultimate goal is to initialize IMA in a initramfs-framework module.
As part of that work, I enhanced runqemu such that it can boot full-disk images more easily, made those images more versatile (no more hard-coded root=/dev/sda2), and solved a kernel panic that only seems to appear under qemu (the /dev/console issue). Only a few patches are really important (because I'd probably not be able to achieve the same effect with setting variables elsewhere): boot loader: support root=UUID initramfs-framework: handle kernel parameters with . inside initramfs-framework: add separate init_verbose log level parameter initramfs-framework: support mounting rootfs in modules runqemu: support full-disk images But I think the rest might also be relevant for others and thus worthwile including. Note that the mechanism for root=UUID is separated from actually making that default. Changing the default this late in the development cycle might be a bit risky, so I'd be fine with leaving out the last patch which changes the default. On the other hand, it solves one potential snag for users of these images, so it might be better to include it - your choice. The following changes since commit bdeb32b4cdbe316f17c2fd854d59e05e8f2e8ffc: rt-tests: drop unnecessary added-missing-dependencies.patch (2015-09-01 11:43:38 +0100) are available in the git repository at: git://github.com/pohly/openembedded-core booting https://github.com/pohly/openembedded-core/tree/booting Patrick Ohly (10): runqemu: support full-disk images initrdscripts: create /dev/console initramfs-framework: handle kernel parameters with . inside initramfs-framework: add separate init_verbose log level parameter initramfs-framework: support mounting rootfs in modules initramfs-framework: support live images image-vm.bbclass: avoid duplicating syslinux default values image-vm.bbclass: support specifying an initramfs boot loader: support root=UUID boot-directdisk.bbclass: use rootfs UUID by default meta/classes/boot-directdisk.bbclass | 2 +- meta/classes/fs-uuid.bbclass | 24 ++++ meta/classes/grub-efi.bbclass | 4 + meta/classes/gummiboot.bbclass | 4 + meta/classes/image-vm.bbclass | 7 +- meta/classes/syslinux.bbclass | 5 +- .../initrdscripts/initramfs-framework/finish | 33 +++--- .../initrdscripts/initramfs-framework/init | 19 ++- .../initrdscripts/initramfs-framework/live | 131 +++++++++++++++++++++ .../initrdscripts/initramfs-framework_1.0.bb | 16 ++- .../initrdscripts/initramfs-live-boot_1.0.bb | 4 +- scripts/runqemu | 24 ++-- scripts/runqemu-internal | 10 +- 13 files changed, 245 insertions(+), 38 deletions(-) create mode 100644 meta/classes/fs-uuid.bbclass create mode 100644 meta/recipes-core/initrdscripts/initramfs-framework/live -- 2.1.4 -- _______________________________________________ Openembedded-core mailing list [email protected] http://lists.openembedded.org/mailman/listinfo/openembedded-core
