Am 20.11.2015 um 20:09 schrieb Matwey V. Kornilov:
> 16.11.2015 04:05, Andreas Färber пишет:
>> Am 15.11.2015 um 19:50 schrieb Matwey V. Kornilov:
>>> 2015-11-15 21:34 GMT+03:00 Andreas Färber <[email protected]>:
>>>> Am 28.10.2015 um 19:07 schrieb Matwey V. Kornilov:
>>>>> I've just looked through perl-bootloader. It is not so hard to implement
>>>>> additional module Extlinux.pm, given there is hardware support to test.
>>>>> But I would say that to implement extlinux support seems to be way
>>>>> easier than direct u-boot anyway.
>>>>> Patching perl-bootloader should be sufficient for correct operation of
>>>>> kernel RPM post/pre scripts.
>>>>
>>>> Have you looked further into implementing this?
>>>>
>>>> I am testing changes to dtb-source, but I do not have a good solution
>>>> for /boot/dtb symlink yet. Switching to extlinux would elegantly avoid
>>>> tackling that. ;)
>>>
>>> I've just tested that extlinux worked.
>>> I am going to start to implement initial support into perl-bootloader,
>>
>> Great, then I'll leave my hands off.
>>
>> I gathered that /etc/sysconfig/bootloader would need
>> LOADER_TYPE="extlinux", and Library.pm:SetLoaderType() would need to
>> handle "extlinux" to instantiate your new Core/Extlinux.pm.
>> https://github.com/openSUSE/perl-bootloader
>
> https://github.com/openSUSE/perl-bootloader/pull/81
Looks promising, do you have it packaged for testing?
> Now I am going to implement DTB handling. kernel and dtb-* can be
> installed and removed independently. Among other, additional commands
> for update_bootloader are required.
> For dtb-*-%{version} %postin we need to scan entries with kernel
> %{version} and set fdtdir to "/boot/dtb-%{version}"
No, my plan was to just set fdtdir on kernel installation. The idea is
that you can use a dtb-tegra124-4.3.0-1 with kernel-lpae-4.3.0-1 but not
randomly mix and match versions. I definitely do not want installing a
new dtb package to update all my old kernels to the new version - that's
likely to break, they're not fully independent of each other.
If there's any Contrib packages installing to /boot/dtb we'll need to
update them, too.
> For dtb-*-%{version} %preun we need to scan entries which use
> /boot/dtb-%{version} and set fdtdir to "/boot/dtb" fallback.
Would the new perl-Bootloader ever realistically encounter dtb packages
following the old /boot/dtb scheme?
Once we have everything in place for switching to extlinux.conf, we
won't even need any /boot/dtb symlink. I've seen kernel uninstallation
leaving the /boot/initrd symlink dangling, so I saw no need to go
through hoops for /boot/dtb either.
> The flavor of dtb (dtb file) is to be specified in /etc/sysconfig/bootloader
That shouldn't be necessary, U-Boot is supposed to provide $fdtfile.
In my testing I didn't need to specify a dtb file in extlinux.conf, only
the dtb directory.
Regards,
Andreas
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