Dne 27.4.2017 v 17:30 Vít Ondruch napsal(a):
Dne 26.4.2017 v 15:52 Miroslav Suchý napsal(a):
## Bootstrap chroot
This does not work as expected. Trying to setup RHEL6 (and 7 probably as well) buildroot on Rawhide fails:
https://bugzilla.redhat.com/show_bug.cgi?id=1446294
the "--no-bootstrap-chroot" option or "config_opts['use_bootstrap_container'] = False" described bellow should help.
This appears to be caused by remaint of old days:
$ cat ~/.config/mock.cfg | grep yum config_opts['yum_command'] = '/usr/bin/yum-deprecated'
Should not be issue for most of you.
Vít
Vít
Mock is calling `dnf --installroot` to install packages for target architecture into target directory. This works. Mostly. The only problem that use host DNF and rpm to install packages. But this can cause problem when new RPM feature is introduces. Like Soft dependencies or Rich dependencies. When you have EL6 host and try to install Fedora rawhide package with Rich dependency then rpm will fail and you cannot do anything about it. You can upgrade your build machine to Fedora rawhide, but that is often not possible when it is part of critical infrastructure.
So we introduced Boostrap chroot. And 'we' actually means Michael Cullen who implement it. And Igor Gnatenko who proposed this idea. Big kudos for both of them.
Bootstrap chroot means that we first create very minimal chroot for target platform and we call DNF/YUM from that platform. For example: when you are on RHEL7 and you want to build package for `fedora-26-x86_64`, mock will first create chroot called `fedora-26-x86_64-bootstrap`, it will install DNF and rpm there (fc26 versions). Then it will call DNF from `fedora-26-x86_64-bootstrap` to install all needed packages to `fedora-26-x86_64` chroot.
The disadvantage is that you will need more storage in `/var/lib/mock`, the build is little bit slower. But you will hardly notice that unless you disabled `yum_cache` and `root_cache` plugins for some reasons.
The advantage is that you can use stable version of OS to build packages for even most recent OS. And vice versa.
If you want to preserve previous behaviour you can use `--no-bootstrap-chroot` command line option or set:
config_opts['use_bootstrap_container'] = False
in your configuration.
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