With the new release of Apple Mac OS X Lion, there are a lot of changes on the kernel and backends. Therefore I don’t think it’s possible to do port upgrade on Macports in order to upgrade your existing or installed ports in OS X Snow Leopard.

I have tried several times to upgrade ports previously installed in Snow Leopard, unfortunately no luck to getting it works in OS X Lion Macports, some library couldn’t load and some library cannot be found. Failed miserably with tons of error messages.

I have decided to re-install, or rather clean install Macports on my newly installed Mac OS X Lion.

OS X Lion Macports with XCode 4.1

Before installing OS X Lion Macports, you need to download and install latest Xcode 4.1 which designs for Mac OS X Lion. Xcode 4.1 can be downloaded at App Store, the file size is around 2.96GB, it might take some time for user who has slow internet access.

The existing Xcode on your Snow Leopard will not support latest version of Macports.

OS X Lion Macports, Before Clean Install

Before proceed with OS X Lion Macports clean install, I suggest you do a few things as I listed below.

1. Dump current installed packages database. Run “port installed > installed.ports.log” to keep a list of packages currently install on your Macports. Which later you will need to re-install all the packages. Below is the sample of my current installed packages.

  apache2 @2.2.19_0+preforkmpm (active)
  apr @1.4.5_1 (active)
  apr-util @1.3.12_0 (active)
  atk @1.32.0_0 (active)
  autoconf @2.68_2 (active)
  autoconf213 @2.13_1 (active)
  automake @1.11.1_0 (active)
  axel @2.4_0 (active)
  bison @2.5_0 (active)
  bzip2 @1.0.6_0 (active)
  c-ares @1.7.4_0 (active)
  cacti @0.8.7g_1 (active)
  cairo @1.10.2_3 (active)
  ctags @5.8_0 (active)
  curl @7.21.7_0+ssl (active)
  curl-ca-bundle @7.21.7_0 (active)
  cyrus-sasl2 @2.1.23_3+kerberos (active)
  db46 @4.6.21_6 (active)
  dbus @1.4.12_0 (active)
  dia @0.97.1_2 (active)
  docbook-xml @5.0_0 (active)

2. Dump or backup your database data such as PostgreSQL and MySQL.

3. Backup your old directory, which is “/opt/local”, rename it to “/opt/local-snowleopard”, this is to keep all your data in order to migrate over to newly installed Macports later on.

OS X Lion Macports Clean Install

Macports team has not release latest Macports package/installer for OS X Lion (as when I written this post). If the official download is not available for OS X Lion, you need to install it from latest subversion built.

Create a new directory to check out latest subversion built for OS X Lion Macports

# mkdir /opt/lion-macports
# cd /opt/lion-macports
# svn co http://svn.macports.org/repository/macports/trunk

This will download the latest build of subversion, next we will proceed with OS X Lion Macports installation

# cd /opt/lion-macports/trunk/base
# ./configure --enable-readline
# make
# sudo make install
# make distclean

After installation, make sure OS X Lion Macports binary is exported into your environment path, existing user should not have this problem, for new user, edit your environment path as show below; Search for export path line

#sudo vi ~/.bash_profile
export PATH=/opt/local/bin:/opt/local/sbin:$PATH

Add /opt/local/bin and /opt/local/sbin into export PATH.

After environment path has been configured, get the latest update port tree and your are done

# sudo port -d selfupdate

OS X Lion Macports. Install package

You are basically you done Macports installation on Mac OS X Lion. Refer to your dump file I mentioned earlier “installed.ports.log”, re-install all the packages or the packages you need in newly installed OS X Lion Macports

I know it’s a little PITA (Pain In the Ass), but so far this is the only solution which can fix my problem by migrating into OS X Lion Macports.

OS X Lion Macports. Re-install MySQL

This is an example how I reinstall and load MySQL database which previously installed on Snow Leopard Macports into OS X Lion Macports.

1. Firstly, clean install MySQL5.1 database

# sudo port -v install mysql5-server

You might see error with plist conflict

Error: Target org.macports.activate returned: Image error: /Library/LaunchDaemons/org.macports.mysql5.plist already exists and does not belong to a registered port.  Unable to activate port mysql5-server. Use 'port -f activate mysql5-server' to force the activation.
Warning: the following items did not execute (for mysql5-server): org.macports.activate
Log for mysql5-server is at: /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_databases_mysql5-server/mysql5-server/main.log
Error: Status 1 encountered during processing.
To report a bug, see 

To fix it, force plist replacement.

# sudo port -f activate mysql5-server
--->  Computing dependencies for mysql5-server
--->  Activating mysql5-server @5.1.57_0
Warning: File /Library/LaunchDaemons/org.macports.mysql5.plist already exists.  Moving to: /Library/LaunchDaemons/org.macports.mysql5.plist.mp_1311315120.
--->  Cleaning mysql5-server

2. Move database into data directory, it required root privileges

# sudo su
# cp -RPa /opt/local-snowleopard/var/db/mysql5 /opt/local/var/db/

3. Start MySQL Server

# sudo /opt/local/etc/LaunchDaemons/org.macports.mysql5/mysql5.wrapper start

Please also share how you migrate existing Macports into OS X Lion Macports.

It is always better to have MySQL Data Directory store in a specific partition/drive. It will help on performance and better management and scalability. You change change the data store directory in Linux by editing /etc/my.cnf file.

Edit /etc/my.cnf file

# vi /etc/my.cnf

Change the data directory structure

datadir=/db/mysql
socket=/db/mysql/mysql.sock

After the file has been updated, restart MySQL service.

So which DNS server do you resolve it from? For example we run a query on DNS F Root Server

$ dig @f.root-servers.net hostname.bind  txt ch +short
"lga1a.f.root-servers.org"

On the result, it shows that I am using lga1a.f.root-servers.org as resolver. Some DNS server does reply “chaos” (ch) request but some refuse; for example Google DNS and Open DNS Server. So if your ISP is running Anycast DNS, you can try to lookup where is the DNS server locate.

There is another command perform checking via “id.server” query, it only helpful when the DNS has server-id configured.

dig @k.root-servers.net id.server txt ch +short
"k2.tokyo.k.ripe.net"

In Exim mail MTA, it can restricts at the SMTP authenticated transport.

accept  authenticated = *
          sender_domains = < the_domain_name_1 > : < the_domain_name_2 >
          control       = submission
          control       = dkim_disable_verify

Usually local_domains is the list of the domain hosted on Exim mail server, it can be configured as below too.

accept  authenticated = *
          sender_domains = +local_domains
          control       = submission
          control       = dkim_disable_verify

OURMON Version 2.81

On the recent released of OURMON, the topn graphs didn’t show the traffic by Mbit/s instead of bit/s. The long no. is confusing when the NOC engineer is doing the monitoring(minimal 7 digits will show up). I have made some changes on omupdate.pl, one of OURMON script that generate html static page, to show extra value – Mbit/s. Our current OURMON graph looks something like below;

Below will show you how to add extra Mbit/s value on your OURMON Topn section;

edit omupdate.pl file

vi /usr/local/mrourmon/bin/omupdate.pl

On line 3137, add the code looks like below;

my $uappf = $items[$i+2];       # old hw app flags
my $uappl = $items[$i+3];       # app lower case
my $uapph = $items[$i+4];       # app upper case
my $bps = int(($items[$i+1] * 8)/30);
my $mbps = sprintf("%.2f", ($bps/1024)/1024); # convert bits to mbits
my $uaf = get_appflag($uappf, $uappl, $uapph);

this line of code my $mbps = sprintf(“%.2f”, ($bps/1024)/1024); is to declare the new variable $mbps and convert the bit/s value to Mbit/s by dividing 1024*1024.

Next is to display the value on the page, do something on line of code 3146;

"bits/sec: $bps, Mbits/sec: $mbps, "

Done, wait for a few second for the web page to refresh with extra Mbit/s value. Btw, you can remove bit/s if you want to, to save some extra space

cd /destination/directory

second :

split /source/directory/big-huge-file prefix-to-apply-onto-splited-files

Voila !!!

(use the parameter -b to specify the size of splited files in BYTES, NOT kb, mb or gb)

e.g. date -d ’1970-01-01 988822888 sec’ would dated “Wed May 2 17:31:28 MYT 2001″

20080430 :

get a particular date in epoch, e.g. date -d ‘Apr 30 2008 00:00:00′ ‘+%s’

1. reboot server
2. choose to boot into single user mode
3. mount -o rw <root partition> e.g. mount -o rw /
4. passwd <root account> e.g. passwd root
5. mount -o ro <root partition> e.g. mount -o ro /
6. reboot server again

Voila !!!

e.g dig SRV _someservice._port.hostname.domainame.com.my OR dig SRV _https._ICMP.host.takizo.com