OSX versionpanic: osVersion reported an error: unknown series

[Curtis Hovey]

Juju 1.21.0 compiled with either 1.2.1 or 1.4.1 on mavericks cannot run juju status or juju version because of unknown series.

juju --version

panic: osVersion reported an error: unknown series ""

goroutine 1 [running]:
github.com/juju/juju/version.mustOSVersion(0x0, 0x0)
 /private/tmp/juju-ybb2TT/juju-core_1.21.0/src/github.com/juju/juju/version/osversion.go:26 +0xed
github.com/juju/juju/version.init()
 /private/tmp/juju-ybb2TT/juju-core_1.21.0/src/github.com/juju/juju/version/version.go:36 +0x340
github.com/juju/juju/tools.init()
 /private/tmp/juju-ybb2TT/juju-core_1.21.0/src/github.com/juju/juju/tools/tools.go:20 +0x54
main.init()
 /private/tmp/juju-ybb2TT/juju-core_1.21.0/src/github.com/juju/juju/cmd/juju/upgradejuju.go:416 +0x4f

juju versionpanic: osVersion reported an error: unknown series ""

1.22 and master already support yosemite. 1.20 doesn't, but is is not an error. in 1.21.0, it is an error to use an unknown version.

Commit 48db73d5 added yosemite to master and it needs to be backported.

[Curtis Hovey (sinzui)]

This is indeed fixed in the latest build from CI. juju metadata also works, showing that bug 1398943 is not a factor.