[SOLVED] Upgrade

[mmgomess]

Can I upgrade from Debian 4 - 5.0.14 to 6.0.6 directly?

There is a list of what upgrades can be done?

Thanks

[Hivos]

The advised way to upgrade is to upgrade to the latest 5.0.x version first and from there to latest 6.0.x version. In your case: make a full backup, upgrade to 5.0.23, make another full backup, then upgrade to 6.0.6 and make another full backup ;-)

[mmorse]

Though if your trying to reduce your maintenance window you can technically go from 5.0.14 > 6.0.6 (backup of course).

Saying 'go the latest on the minor version first' has just become the common practice since it's easier than remembering the upgrade paths chart:
4.5.0 - 4.5.6 > 4.5.11 > (LDAP replica step) > 5.0.2 - 5.0.23 > 6.0.0 - 6.0.6 (LDAPs note)

You should also consider Debian5 at some point for longer support past 6.0 (and 64-bit for even longer) - though I see your profile also mentions an Ubuntu8 64 system already.