OK, I finally got round to replicating this. Under VMware server, I made
two separate installations: ubuntu-6.06.1-desktop-i386 and
ubuntu-8.04-desktop-i386
(1) On the 8.04 VM, I let it upgrade all packages (203 of them); shutdown;
snapshot; restart.
Then I tried "apt-get install ubuntu-xen-desktop". This failed as
follows:
The following packages have unmet dependencies.
ubuntu-xen-desktop: Depends xenman but it is not installable
E: Broken packages
However, "apt-get install ubuntu-xen-server" was successful, and
installed 20 new packages.
(2) On the 6.06.1 VM, I let it upgrade all packages (206); reboot; sudo
update-manager -d (to upgrade to 8.04); shutdown; snapshot; restart.
After this, trying to apt-get install ubuntu-xen-desktop or
ubuntu-xen-server just said that both packages were unavailable, e.g.
E: Couldn't find package ubuntu-xen-server
Looking in /etc/apt/sources.list, 'universe' was not enabled (and there were
obsolete entries for dapper, albeit commented out). So I used 'synaptic' to
enable the universe set.
After this, apt-get install gave the same errors as I'd originally
reported:
# apt-get install ubuntu-xen-desktop
...
The following packages have unmet dependencies.
ubuntu-xen-desktop: Depends: linux-xen but it is not going to be installed
Depends: xenman but it is not installable
E: Broken packages
# apt-get install ubuntu-xen-server
...
The following packages have unmet dependencies.
ubuntu-xen-server: Depends: linux-xen but it is not going to be installed
E: Broken packages
This is good - it means the problem is repeatable!
(3) Reverting to the snapshots, I installed copied off 'dpkg -l' and /etc/apt
from both.
Comparing /etc/apt showed that the fresh 8.04 machine had both
'universe' and 'multiverse' repositories enabled by default, whereas the
6.06.1 upgrade didn't.
As for the dpkg output, the 6.06 box had a lot of old packages in ^rc state, so
I grepped these out. But this still left a lot of differences: what I get from
diff -ubB 606 804 | grep '^[-+]'
is attached as dapper-hardy-pkg-diff.txt
I note that the fresh 8.04 install has installed a 'generic' kernel and
modules, whereas the 6.06.1 upgraded machine has a '386' kernel.
(Aside: a fresh 8.04 install seems to pull in a lot less of the kitchen sink
by default, which I think is a Good Thing. A post-update script to remove
all the spurious packages would be useful. Strangely there are also 3
packages which a fresh install gets that an upgrade doesn't)
(4) I tried installing the linux-generic kernel but this didn't make any
difference.
(Aside: updating the kernel also gave me a reminder to read
/usr/share/doc/grub/NEWS.Debian.gz and follow its instructions, which I
otherwise wouldn't have known was needed)
(5) So then I reverted to snapshot and used synaptic to enable both
'universe' and 'multiverse' repositories.
At this point the problem was fixed: ubuntu-xen-desktop was broken as above,
but ubuntu-xen-server installed successfully.
(6) So the conclusions I can draw:
* The ubuntu-xen-desktop metapackage is broken
* The ubuntu-xen-server metapackage works on a fresh 8.04 install, but not a
6.06.1->8.04 upgraded machine
* This is because a fresh install enables both 'universe' and 'multiverse'
hardy repositories, but an updated machine doesn't get either by default.
* The fix is to enable these repositories manually
If there's any other useful comparison I can make between these two
snapshots, please let me know.
P.S. If anyone wants to duplicate this work, beware that 4GB of virtual
disk is not quite enough for a 6.06.1 install followed by an 8.04
upgrade. I redid it with 6GB and it was fine.
** Attachment added: "Compare dpkg -l from dapper->hardy and fresh hardy
systems"
http://launchpadlibrarian.net/15567713/dapper-hardy-pkg-diff.txt
--
Hardy: ubuntu-xen-server will not install
https://bugs.launchpad.net/bugs/222194
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
--
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
