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From: Andreas Naumann <>
Subject: [Buildroot] [RFC 4/4] board/acmesystems/aria-g25: set BR2_GENIMAGE_CFG_FILES
Date: Mon, 3 Apr 2017 15:01:01 +0200	[thread overview]
Message-ID: <> (raw)
In-Reply-To: <>


Am 31.03.2017 um 18:34 schrieb Arnout Vandecappelle:
> On 31-03-17 09:46, Andreas Naumann wrote:
>> Hi Phelip,
>> Am 31.03.2017 um 00:51 schrieb Arnout Vandecappelle:
>>>  I'm still not entirely sure if this new option is worthwhile. Without it, you
>>> would instead need
>>> BR2_ROOTFS_POST_IMAGE_SCRIPT="support/scripts/"
>>> BR2_ROOTFS_POST_SCRIPT_ARGS="board/acmesystems/aria-g25/genimage.cfg"
>>> Not really complicated either... The only real advantage I see is that it
>>> motivates people more to use genimage (which is otherwise a bit hidden). But for
>>> that, a paragraph or two in docs/manual/customize-post-image.txt would also
>>> work. By the way, even for this series an explanation of the option would be
>>> required in that file.
>>>  What do the others think?
>> I have a slightly different use case than most genimage configs in buildroot
>> right now. This is, I use genimage's ability to split my customized rootfs into
>> multiple filesystems in order to give them them ro/writeable and other
>> capabilities as appropriate.
>> Thus to preserve ownership and such I need to run genimage under fakeroot.
>  It would indeed make sense to run genimage under fakeroot, but then it'd need
> to have some option to extract the tarball first. Actually, that's something
> that could be added to the script at some point...
>> Currently I do this explicitely in a post image script. An improvement I think
>> about is switching to using the post fakeroot integration which buildroot
>> provides since a while.
>> So unless this becomes some kind of option, your proposed change probably
>> wouldnt work for me.
>  It is certainly optional, you can always call genimage directly from you
> post-image script. You can also call the script but I don't know if
> that's useful in your case.

True, Phelip's option [RFC 2/4] doesnt take away other options.

>> What I was thinking about in the past would be a deeper integration of genimage
>> in buildroots filesystem configuration, actually generating the genimage config.
>> But so far it was not worth the effort for me.
>  We have considered that in the past. The problem is that genimage doesn't
> support some of the options that we do. Otherwise, however, it would be really

Are you refering to filesystem-specific options or missing ones like 
axfs, cloop, cramfs?

> nice to remove all our messy filesystem handling code and just generate a
> genimage.cfg file...
>  OTOH we also considered that a full image typically needs more than just a
> single filesystem, so generating a genimage.cfg for part of the image seems a
> bit pointless.

I dont quite understand. Do you mean combining e.g. a standard and a 
rescue system?


>  Regards,
>  Arnout

  reply	other threads:[~2017-04-03 13:01 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-03-29 14:51 [Buildroot] [RFC 0/4] add genimage Kconfig entry Etienne Phelip
2017-03-29 14:51 ` [Buildroot] [RFC 1/4] support/scripts: add generic genimage script Etienne Phelip
2017-03-30 22:51   ` Arnout Vandecappelle
2017-04-01 13:50   ` Thomas Petazzoni
2017-03-29 14:51 ` [Buildroot] [RFC 2/4] system: add option to pass genimage config files Etienne Phelip
2017-03-29 14:51 ` [Buildroot] [RFC 3/4] configs/raspberrypi3_defconfig: set BR2_GENIMAGE_CFG_FILES Etienne Phelip
2017-03-29 14:51 ` [Buildroot] [RFC 4/4] board/acmesystems/aria-g25: " Etienne Phelip
2017-03-30 22:51   ` Arnout Vandecappelle
2017-03-31  7:46     ` Andreas Naumann
2017-03-31 16:34       ` Arnout Vandecappelle
2017-04-03 13:01         ` Andreas Naumann [this message]
2017-04-03 13:54           ` Arnout Vandecappelle
2017-04-05  6:38             ` Andreas Naumann
2017-04-05 12:38               ` Arnout Vandecappelle
2017-04-01 13:51     ` Thomas Petazzoni
2017-04-03  9:06       ` Peter Korsgaard
2017-04-03  9:35         ` Arnout Vandecappelle
2017-04-04 21:34           ` Peter Korsgaard
2017-04-05 15:02             ` Arnout Vandecappelle
2017-04-05 16:14               ` Thomas Petazzoni
2017-04-10 13:44                 ` Étienne Phélip
2017-04-10 15:06                   ` Arnout Vandecappelle

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