On 01/11/2016 09:06 PM, Richard W.M. Jones wrote: > On Mon, Jan 11, 2016 at 03:46:27PM +0100, Jan Kurik wrote: >> = Proposed System Wide Change: Change Proposal Name NewRpmDBFormat = >> https://fedoraproject.org/wiki/Changes/NewRpmDBFormat > > Details of the format? > > What forward and backward compatibility guarantees are there?
RPM will keep support for BDB for now. But to get rid of the dependency it will be dropped at some point in the future. So it will stay backward compatible. The file format is clearly not forward compatible (although you will be for now be able to still use the old format). > libguestfs reads the rpmdb of guests (of any version, new or old) in > order to get the list of packages installed in a guest. Remember that > the host and guest may be very different versions, eg. a RHEL 9 host > accessing a Fedora 24 guest. Or vice versa. > Currently we use the (BDB-specific obviously) db_dump tool for this > purpose. Other distros such as Debian as much simpler in this regard > since they expose the package data as plain text files. > > https://github.com/libguestfs/libguestfs/blob/master/src/inspect-apps.c I would advice to change these over to using librpm or one of the rpm cli tools. If there are any tools missing, please let me know and we will try to come up with them. If possible the rpm installation of the system examined should be used. If this cannot be done you might need a new version of rpm on the host system. Florian -- Red Hat GmbH, http://www.de.redhat.com/ Registered seat: Grasbrunn, Commercial register: Amtsgericht Muenchen, HRB 153243, Managing Directors: Charles Cachera, Michael Cunningham, Michael O'Neill, Charles Peters -- devel mailing list devel@lists.fedoraproject.org http://lists.fedoraproject.org/admin/lists/devel@lists.fedoraproject.org
