19 Sep
2005
19 Sep
'05
4:04 a.m.
On Sun, 2005-09-18 at 15:31 -0700, Dave Laird wrote:
The situation that originated this query took place recently when I tried to do a CD-based upgrade from 3.3 to 4.1, and although the install medium did search for previous instances of CentOS, it never found one (it was there, really!) and continued to try reinstalling the entire OS.
The trick there is to specify the "upgradeany" switch - otherwise no supposedly-upgradable system is found. My conjecture is that this is because Red Hat discourages upgrades. A clean install with backups of config files (and likely /home, and possibly /var/www and /usr/local) available for customizing is still probably the best bet.
Phil