| sub526 | Hi all, I'm having Ubuntu 18.04.4 LTS (4.15.0-91-generic kerne) system, I need downgrade the kernel to 4.4.0-66-generic kernel. Is it possible to downgrade, if so how to achieve this? | 08:22 |
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| jceel | hi everyone | 15:16 |
| jceel | my company has designed a board based on an AArch64 SoC that I would like to add Ubuntu support for | 15:16 |
| jceel | I need to at least add a custom device tree file for my platform to the kernel package | 15:17 |
| jceel | so far I have forked ubuntu-bionic kernel from the official repo and set up APT repository to host kernel image and module packages | 15:17 |
| jceel | and made the appropriate changes in the kernel source tree | 15:18 |
| jceel | however, the resulting kernel-modules package does not contain my .dtb file | 15:18 |
| jceel | even though it is correctly wired up in the Makefile and I can see that make dtbs_install installs it | 15:18 |
| jceel | how to proceed with debugging it? | 15:19 |
| sarnold | jceel: I know next to nothing about the kernel packaging, but there's often a debian/*.install file of some sort to describe which files go in which packages -- there may be something similar | 17:57 |
| jceel | sarnold: there are no such files in kernel packages, so I'm guessing they must be generated by something | 19:21 |
| sarnold | dang :( | 19:21 |
| jceel | in fact there's so much makefile code in those packages that it may take weeks to understand all of that | 19:21 |
| jceel | the interesting thing is that the resulting /lib/firmware/.../device-tree directory tree doesn't contain all the built dtb files but only some of them | 19:24 |
| jceel | yet I can't find a list of those files | 19:24 |
| jceel | (I tried grepping some characteristic names) | 19:24 |
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