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Bug#864807: debian-installer: Lamobo R1 requires modprobe b53_mdio

Cross-posted to 2 groups.

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Cyril Brulebois wrote:
> On Thu, Jun 15, 2017 at 10:43:18AM +0100, Ben Hutchings wrote:
> > Control: tag -1 moreinfo
> > 
> > On Thu, 2017-06-15 at 08:34 +0200, Heinrich Schuchardt wrote:
> > > Package: debian-installer
> > > Version: stretch
> > > Severity: normal
> > > 
> > > Dear Maintainer,
> > > 
> > > the Lamobo R1 is an Arm system based on the Amlogic A20.
> > > The network interface of the A20 is connected to a switch.
> > > If the switch is not configured there is no external
> > > network access and subsequently a network install fails.
> > > 
> > > On an installed system it is sufficient to have a line
> > > in /etc/modules:
> > > b53_mdio
> > > 
> > > I suggest the following corrections to the installer:
> > > 
> > > The initrd.img should include the b53_mdio module and its
> > > prerequisites b53_common and dsa_core plus aforementioned
> > > file /etc/modules.
> > > 
> > > The installer should compare the content of
> > > /proc/device-tree/model
> > > to the string
> > > Lamobo R1
> > > 
> > > If this string is found, the file /etc/modules should be
> > > appended with b53_mdio on the installed system.
> > 
> > Why is this necessary?  It should load automatically.
> 
> Because of missing i2c? Lamobo R1 is listed here:
>   https://bugs.debian.org/864536#15
> 
> (Didn't check the recursive list of dependencies though.)

If I understood the original submitter correctly, the problem
also exists in the installed system, not only in d-i.  The
i2c-modules udeb issue (or other modules unavailable in the udebs
but available in the regular kernel deb) would explain problems
inside d-i, but not in the installed system.

Heinrich, can you clarify on that?

Regards,
Karsten
-- 
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Bug#864807: debian-installer: Lamobo R1 requires modprobe b53_mdio Cyril Brulebois <kibi@debian.org> - 2017-06-15 12:40 +0200
  Bug#864807: debian-installer: Lamobo R1 requires modprobe b53_mdio Karsten Merker <merker@debian.org> - 2017-06-15 13:10 +0200
    Bug#864807: debian-installer: Lamobo R1 requires modprobe b53_mdio Heinrich Schuchardt <xypron.glpk@gmx.de> - 2017-06-15 17:40 +0200

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