/Installation/OS Specific Notes/Installing Amanda on Mac OS X
Work in Progress --Dustin 13:31, 8 March 2007 (PST)
Amanda has been tested to run on both Mac OS X Panther (10.3) and Tiger (10.4).
With Panther, the built-in tar does not record extended filesystem attributes (resource forks, finder flags, ACLs, and so on), so users who want to be able to restore those attributes will need to do some extra work (see below). Fortunately, Tiger's tar does support extended attributes, so an amanda installation will work "out of the box".
This page is summarized from writeups by Steven Karel and Locnar and Dustin's work on Amanda.
General Setup
Set Up 'amanda' User
The following steps use 'niutil' to set up Amanda in the netinfo database, and then creae a home directory for the new user.
sudo niutil -create / /users/amanda sudo niutil -createprop / /users/amanda shell /bin/bash sudo niutil -createprop / /users/amanda realname "Backup User" sudo niutil -createprop / /users/amanda uid 5000 sudo niutil -createprop / /users/amanda gid 0 sudo niutil -createprop / /users/amanda home /Users/amanda sudo ditto -rsrcFork '/System/Library/User Template/English.lproj/' /Users/amanda sudo echo 'amanda_server.domain.com amanda' > /User/amanda/.amandahosts sudo chown -R amanda.0 /Users/amanda sudo passwd amanda
Replace amanda_server.domain.com in the above with the name of your amanda server. This file is used as a basic security check to control which hosts can access amandad on this client.
System Tweaks
Add the following lines at the appropriate place in /etc/services (this isn't strictly necessary if you're not using kerberos security and the machine will only be an amanda client):
kamanda 10081/tcp # amanda backup services (Kerberos) kamanda 10081/udp # amanda backup services (Kerberos) amandaidx 10082/tcp # amanda backup services amidxtape 10083/tcp # amanda backup services
Create /etc/amandates:
sudo touch /etc/amandates sudo chmod 660 /etc/amandates sudo chown -R amanda.wheel /etc/amandates
And set up some directories where Amanda can store small bits of data:
# TODO: get paths right for no --prefix sudo mkdir -p /var/amanda sudo mkdir -p /usr/lib/amanda sudo touch /usr/lib/amanda/exclude.gtar sudo mkdir /var/amanda/gnutar-lists sudo chown -R amanda.wheel /usr/lib/amanda /var/amanda
Compile Amanda
Download and untar Amanda, then run ./configure as follows:
./configure --with-user=amanda --with-group=wheel
You will want to examine ./configure --help first to see what other options are available. For example:
- --without-server
- just build the client components
- --prefix
- install somewhere other than /usr/{bin,sbin,lib}, etc.
- --with-config
- set the default configuration
- --with-gnutar
- give the path to GNU tar (especially useful on Panther; see below)
Then follow the usual
make; make install
Version-Specific Notes
Tiger
The above instructions should work without modification for Tiger.
Panther
To support extended attributes on Panther,
- install either xtar or, if that doesn't work, hfstar
- compile Amanda, with the addition of the --with-gnutar=/path/to/new/tar flag to ./configure, giving the location of the new tar
To run amandad on Panther, you need to install an xinetd configuration snippet; create /etc/xinet.d/amanda with the following contents:
service amanda
{
socket_type = dgram
protocol = udp
wait = yes
user = amanda
server = /usr/local/libexec/amandad
server_args = amandad
groups = yes
disable = no
}
(where server is the path at which you've installed amandad)
To start the service in xinetd:
service amanda start
If you have trouble, you may want to check that xinetd is running on the machine.