September 28, 2010
Installing PostgreSQL 9.0 on Ubuntu
Thanks to Martin Pitt , who maintains the packages for Ubuntu, nstalling the latest version of PostgreSQL on Ubuntu (Lucid) is nothing more than updating your /etc/apt/sources.list with
deb http://ppa.launchpad.net/pitti/postgresql/ubuntu lucid main deb-src http://ppa.launchpad.net/pitti/postgresql/ubuntu lucid mainplus
apt-get updateand
apt-get installpostgresql-9.0I recommend reading the release notes and he outstanding good postgresql documentation.
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Ubuntu添加新的软件源的时候，update报这个错误
GPG签名验证错误： http://ppa.launchpad.net hardy Release: 由于没有公钥，下列签名无法进行验证： NO_PUBKEY 6AF0E1940624A220
找了下原因，虽然不知道原理，不过大概意思还是能才出来的，解决方法如下：
gpg --keyserver subkeys.pgp.net --recv 99B656EA8683D8A2
gpg --export --armor 99B656EA8683D8A2 | sudo apt-key add -
然后sudo apt-get update就OK了
20090723补充：subkeys.pgp.net尽然提示找不到了，换成keyserver.ubuntu.com即可
gpg --keyserver keyserver.ubuntu.com --recv 99B656EA8683D8A2
gpg --export --armor 99B656EA8683D8A2 | sudo apt-key add -
http://www.mndu.cn/html/y2010/331.html
add new user
execute these as the postgres user:
su - postgres
One option is to create a super-user with something like:
postgres$ createuser -d -a -P jeoff
then:
jeoff$ createdb ibmadb
then do administrative things with that user. I would advise *NOT* using root. If this is a tightly controlled (non-shared) machine, you could make a super user as your normal unix login (which hopefull is not root). Ideally you'll only need root to start the postgres service.
sudo passwd postgres
su postgres
createuser -P -d -a -e mlzboy
dropuser mlzboy
reference:
http://www.linuxsir.org/main/?q=node/275