space requirement for /tmp may be insufficient

[Brian Murray]

I seem to recall some distribution upgrades failing if /tmp is a separate partition due to a lack of free space in /tmp. Perhaps increasing the fudge factor from 5 would be a good idea.

from DistUpgrade/DistUpgradeCache.py:

        # sum up space requirements
        for (dir, size) in [(archivedir, self.required_download),
                            # plus 50M safety buffer in /usr
                            ("/usr", self.additional_required_space),
                            ("/usr", 50*1024*1024),
                            ("/boot", space_in_boot),*
                            ("/tmp", 5*1024*1024), # /tmp for dkms LP: #427035
                            ("/", 10*1024*1024), # small safety buffer /
                            (aufs_rw_dir, required_for_aufs),
                            # if snapshots are in use
                            ("/usr", required_for_snapshots),
                           ]:

[Brian Murray (brian-murray)]

Well, I can't find any specific instances of people not having enough free space in /tmp when searching attachments for update-manager and ubuntu-release-upgrader.