Re: [ptxdist] Opkg status file in initrd

[Michael Olbrich <m.olbrich@pengutronix.de>]

On Fri, Aug 28, 2020 at 02:56:23PM +0200, Ariel Garcia wrote:
> Hi,
> 
> thanks a lot for your answer.
> 
> It works now, i only had to fiddle a bit to find the right path variables...
> genimage does not seem to export any for exec-pre commands (in particular TMPPATH 
> used internally) so had to resort to a not-so-nice shell glob
>   ${PTXDIST_TEMPDIR}/genimage.*/root/usr/share/opkg

Right, $IMAGEMOUNTPATH should be defined, but it's not. That's a bug in
genimage. I need to fix that. You can work around this by explicitly
setting 'mountpoint = "/"'. Then $IMAGEMOUNTPATH is defined.

Michael

> 
> For future reference, the end result is:
> 
> -----------
> $ cat configs/platform-name/config/images/cpio.config
> 
> image @IMAGE@ {
>     exec-pre = "rm -rf ${PTXDIST_TEMPDIR}/genimage.*/root/usr/share/opkg ; \
>                 touch -r ${PTXDIST_TEMPDIR}/genimage.*/root/usr {PTXDIST_TEMPDIR}/genimage.*/root/usr/share"
>     cpio {
>         format = "@FORMAT@"
>         compress = "@COMPRESS@"
>     }
> }
> -----------
> 
> Greetings
> 
> 
> On Friday, 28 August 2020 11:50:15 CEST Michael Olbrich wrote:
> > Hi,
> > 
> > On Mon, Aug 24, 2020 at 04:50:02PM +0200, Ariel Garcia wrote:
> > > i'm having a hard time trying to understand why a /usr/share/opkg/status
> > > file is landing in the root.cpio which itself is used for the initrd in a
> > > kernel... (resp. which script/step/etc may i touch to change that)
> > > 
> > > I am trying to make the build fully reproducible and the opkg/status file
> > > contains the "Installation-Time".
> > > 
> > > Any hint?
> > 
> > I think the best solution would be to just remove /usr/share/opkg before
> > the cpio is created. You don't need this anyways.
> > If you use the default rule for root.cpio, then you can copy
> > config/images/cpio.config into your BSP and add:
> > 
> > exec-pre = "rm -r '${IMAGEMOUNTPATH}/usr/share/opkg'"
> > 
> > I think. This is untested, so you should probably start with an 'echo' to
> > see if the path is correct.
> 
> 
> 
> 
> 

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