From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peter Seiderer Date: Fri, 27 Nov 2020 23:53:48 +0100 Subject: [Buildroot] Add crontab entries from package In-Reply-To: <20201127235210.06a62c2a@gmx.net> References: <92cb0f53-5289-afec-91e7-fc5e93bf29d2@klomp.eu> <20201126200537.314f2576@gmx.net> <20201127235210.06a62c2a@gmx.net> Message-ID: <20201127235348.19ec34b1@gmx.net> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: buildroot@busybox.net And re-add CC: buildroot at buildroot.org, sorry for missing it... Regards, Peter On Fri, 27 Nov 2020 23:52:10 +0100, Peter Seiderer wrote: > Hello Sven, > > On Fri, 27 Nov 2020 11:40:03 +0100, Sven Klomp wrote: > > > Hello Peter, > > > > On 26.11.20 20:05, Peter Seiderer wrote: > > >> I want to add entries to /etc/crontabs/root. > > >> I know I can add abritary scripts to |BR2_ROOTFS_POST_BUILD_SCRIPT| to > > >> change files. However, as the crontab entry depends on the package, I > > >> want to change the file from within thepackage and not globally. How is > > >> this possible? > > >> The documentation of |BR2_ROOTFS_POST_BUILD_SCRIPT |makes me think there > > >> must be another solution: > > >> "You should, however, use this feature with care. Whenever you find that > > >> a certain package generates wrong or unneeded files, you should fix that > > >> package rather than work around it with some post-build cleanup scripts." > > > Maybe use a root filesystem overlay/BR2_ROOTFS_OVERLAY (see [1])... > > > > > > Regards, > > > Peter > > > > > > [1] https://buildroot.org/downloads/manual/manual.html#rootfs-custom > > > > > > > Thanks for the hint. If my understanding is correct, this is also a > > global approach (i.e. if I don't install my package, the crontab gets > > still changed). > > Yes you are right (I did not catch the 'from package' of the subject line)... > > > But maybe there is no other solution from within the package. > > Do the same as for sysv or systemd init files, provide a custom one from your > package and install it, see e.g. DHCPCD_INSTALL_INIT_SYSV/DHCPCD_INSTALL_INIT_SYSTEMD > from dhcpcd ([2])... > > Regards, > Peter > > [2] https://git.buildroot.net/buildroot/tree/package/dhcpcd/dhcpcd.mk#n43 > > > > > Best regards > > Sven >