Re: [ptxdist] [PATCH 18/20] opkg: move opkg-database to a read-only location

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

On Wed, Jun 05, 2019 at 02:54:19PM +0200, Juergen Borleis wrote:
> The directory tree in '/var/lib' might not be persistent and thus,
> not in sync with the root filesystem. In this case it's required
> to store the opkg database at a location which has a fixed
> relation to the root filesystem's content it describes.
> 
> This change moves the opkg's database to a read-only location in
> '/usr/share/opkg', which is then always in sync with the root
> filesystem's content.
> 
> This changed opkg configuration works since commit
>    a691341deb33077b9d5ede5fe349ee6b3fb99be1
>  "ptxd_make_image_extract_xpkg_files: use ptxd_get_alternative to find opkg.conf"
> 
> Signed-off-by: Juergen Borleis <jbe@pengutronix.de>
> ---
>  doc/daily_work.inc             | 3 +--
>  projectroot/etc/opkg/opkg.conf | 7 ++++++-
>  2 files changed, 7 insertions(+), 3 deletions(-)
> 
> diff --git a/doc/daily_work.inc b/doc/daily_work.inc
> index 470c14f93..58cf69f49 100644
> --- a/doc/daily_work.inc
> +++ b/doc/daily_work.inc
> @@ -1426,8 +1426,7 @@ This is a very simple and optimistic approach and works for surprisingly many us
>  cases. But some applications expect a writable ``/var/lib`` and will fail due
>  to this setup. Using an additional RAM disk for ``/var/lib`` might not help in
>  this use case, because it will bury all build-time generated data already present
> -in this directory tree (``opkg`` package information for example or other
> -packages pre-defined configuration files).
> +in this directory tree (package pre-defined configuration files for example).

I've applied this patch without the documentation changes. Please add it to
the volatile /var patch.
I've also applied several other patches that don't add a StateDirectory or
similar. Please rebase the rest.

Michael

>  
>  Overlay RAM Disk
>  ~~~~~~~~~~~~~~~~
> diff --git a/projectroot/etc/opkg/opkg.conf b/projectroot/etc/opkg/opkg.conf
> index 3ba17115b..67a64838f 100644
> --- a/projectroot/etc/opkg/opkg.conf
> +++ b/projectroot/etc/opkg/opkg.conf
> @@ -6,7 +6,12 @@
>  @SRC@
>  
>  dest	root	/
> -option	lock_file /var/lock/opkg.lock
> +option	lock_file /run/lock/opkg.lock
> +
> +# move away the ipkg database from the default "/var/lib/opkg" to a r/o location
> +option lists_dir /usr/share/opkg/lists
> +option status_file /usr/share/opkg/status
> +option info_dir /usr/share/opkg/info
>  
>  arch	@ARCH@	10
>  arch	all	1
> -- 
> 2.20.1
> 
> 
> _______________________________________________
> ptxdist mailing list
> ptxdist@pengutronix.de

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