Re: [DistroKit] [PATCH] platform-v8a: kernelconfig: cleanup

["Jan Lübbe" <jlu@pengutronix.de>]

On Mon, 2024-01-22 at 16:57 +0100, Michael Olbrich wrote:
> On Mon, Jan 22, 2024 at 04:01:36PM +0100, Ahmad Fatoum wrote:
> > On 17.01.24 14:56, Michael Olbrich wrote:
> > > -CONFIG_BLK_DEV_INITRD=y
> > > -CONFIG_INITRAMFS_SOURCE=""
> > > -# CONFIG_RD_GZIP is not set
> > > -# CONFIG_RD_BZIP2 is not set
> > > -# CONFIG_RD_LZMA is not set
> > > -# CONFIG_RD_XZ is not set
> > > -# CONFIG_RD_LZO is not set
> > > -# CONFIG_RD_LZ4 is not set
> > > -CONFIG_RD_ZSTD=y
> > > +# CONFIG_BLK_DEV_INITRD is not set
> > 
> > We want to keep CONFIG_BLK_DEV_INITRD, so DistroKit systems can easily
> > boot common distros like Debian that ship with an initramfs.
> 
> I was not aware that this is a use-case for DistroKit. I'm not sure how
> that is supposed to work but fine.

On some boards, we've configured barebox's fastboot to allow upload of kernel,
initramfs and oftree to ramfs. That way, one can quickly boot a small test setup
via USB (such as those produced by kernelci). There's no need to write anything
to flash, which would take time and potentially overwrite another useful rootfs.

In the medium term, I'd like to have fastboot configured this way on all
DistroKit boards with USB OTG, so that one can quickly boot a multi-arch kernel
on many boards.

Jan
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