<sorry to sage and somnath for double-post -- ceph-devel got me with plain text again. :) > On Debian/Ubuntu, the uninstall/purge will remove the following packages: ceph ceph-mds ceph-common ceph-fs-common. Ironically, ceph-deploy will spit out on the CLI that it does *not* remove librados2 and librbd1, because yes that would break qemu/libvirt. The intent is to leave those libraries. I wonder if something has changed along these lies. those libraries should have stayed on the host. So I am curious what ceph-deploy command you actually ran. ceph-deploy should not be able to uninstall librados2 or librbd1, but you mentioned that you purged them. How? Was it through ceph-deploy? On Wed, Feb 25, 2015 at 3:21 PM, Sage Weil <sage@xxxxxxxxxxxx> wrote: > On Wed, 25 Feb 2015, Somnath Roy wrote: >> Hi, >> We are facing problem that ceph-deploy purge is uninstalling latest Mellanox ofed driver packages. >> Digging down more we found libvirt-bin is dependent on librados2/librbd1. >> So, here is what happening. >> >> 1. Mellanox ofed driver has a dependency on the libvirt-bin* >> >> 2. purging librados2/librbd1 is removing libvirt-bin and resulting the removal of the Mellanox driver package as well. >> >> Here is what I found. >> >> http://packages.ubuntu.com/trusty/devel/libvirt-bin >> >> ubuntu@ip-10-15-16-211:~$ apt-cache rdepends librados2 >> [...] > > The problem is that libvirt (and probably qemu) are built against librbd1. > If you remove librbd1, those get removed too. > >> So, I am curious why libvirt-bin has a depencey on librados2/librbd1 ? > > qemu needs it for obvious reasons. libvirt needs it to manage it's > (rbd) storage pools. > >> Also, how come we get rid of this issue ? >> Ceph-deploy should not remove any package other than ceph's. > > Purge could skip the libraries that may have other dependencies, but then > it's a purge-lite. Honestly I thought it skipped them for that reason but > we probably changed it at some point because it (also confusingly) > wouldn't remove librados etc... > > sage > > -- > To unsubscribe from this list: send the line "unsubscribe ceph-devel" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
