Stefano’s Stuffs

Ubuntu 9.10 – A Fast Review

I’ve just upgraded to Ubuntu 9.10 from 9.04, by using always the same method (via Administration->Update Manager) as in the past. The process took near 2 hours, with only a continous crash related to the Flash plugin. This new edition has some news, like:

1 – The Ubuntu Software Center:

usc

where you can download applications and at sametime watch what you’ve installed and eventually remove it. Very windows style. Very useless:-) I’m a little tired about “easy things for newbies”…If you’re a linux newbie you want to learn something new, different, open; you don’t need another win style computer!Past years Linux wasn’t user-friendly…Now it’s too much;-)

2 – Ubuntu One: 2gb of webspace for sharing and backup, directly accessible from desktop

one

3 – A lot of new screensavers/desktop images and themes

4 – A better support about Eucalyptus and private cloud (on server edition)

5- Open Office 3.1

Ubuntu is a must to have BUT before upgrading remember that:

1 – IMHO this edition is a little slower than 9.04, at least on my pc without a fresh install; startup and open applications remember to me the same “slowly feeling” I had when upgraded from 8.04 to 8.10 (is the .10 release always slower than .04???:-))
2 – My old Vmware Player 2.5.2 needed an update to 3.0 in order to work with new kernel (download the .bundle file on Vmware website and install it with sudo sh xxxxxx.bundle). The 3.0 is fantastic and it can create VM too!
3 – The Lotus Notes Client 8.5 doesn’t work with Ubuntu 9.10; a re-install didn’t fix it.

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October 30, 2009 Posted by | computer | , , , , , | Leave a comment

Vmware ESX ethernet problem after “migration”

Generally, the command “migrate” of the Vmware Infrastructure Client is a very safe operation and you can move completely one virtual machine from one ESX server to another in few steps and few minutes.
The n.1 error that could happen is that the single virtual ethernet controller eth0 is “disappeared” after migration and your machine lost its ip address.
The solution, in my cases (on a Suse 10.1 with only one ethernet), was always the same:
go to /etc/sysconfig/network
locate a file similiar to ifcfg-eth-id-XX:XX… that’s related to the old mac address of eth0
rename it to ifcfg-eth0 (with mv command)
go to /etc/udev/rules.d
edit a file named 30-net_persistent_names
inside there are X lines where X is the number of your eth devices (old, new, used, unused…); in a default situation there are two lines, one old related to eth0 and one new related to eth1
delete the line related to the same old mac address you saw before (related to eth0 as you can see at the end of that line) and change from eth1 to eth0 in the remaining line, that’s the one containing the new mac of your ethernet card.
Save and reboot.Now your eth0 should be ok as in the past.

Generally, the command “migrate” of the Vmware Infrastructure Client is a very safe operation and you can move completely one virtual machine from one ESX server to another one in few steps and few minutes.

The n.1 error that could happen is that the single virtual ethernet controller eth0 is “disappeared” after migration and your machine lost its ip address (and this could be REALLY dramatic).

The solution, in my cases (on a Suse 10.1 with only one ethernet), was always the same:

go to /etc/sysconfig/network

locate a file similiar to ifcfg-eth-id-XX:XX… that’s related to the old mac address of eth0

rename it simply to ifcfg-eth0 (with mv command)

go to /etc/udev/rules.d

edit a file named 30-net_persistent_names

inside there are X lines where X is the number of your eth devices (old, new, used, unused…); in a default situation there are two lines, one old for eth0 and one new for a new created eth1

delete the first line that includes the same old mac address you saw before (related to eth0 as you can see at the end of that line) and change from eth1 to eth0 in the remaining line, that’s the one containing the new mac of your ethernet card.

Save and reboot.Now your eth0 should be ok as in the past.

August 25, 2009 Posted by | computer | , , , , , , , , | Leave a comment

Vmware Fusion 2.0

As an old time Vmware user I’m so interesting in everything new from this software: I didn’t know about Vmware Fusion, the desktop solution for osx; I’ve tried it and it’s great (and also cheap, near 80$). Virtualization for desktops is not so useful as for servers, but it’s always a pleasure to open a linux/win virtual machine inside Leopard in the same way of Vmware Server for other operating systems. The graphic of Fusion is really “mac” oriented and the menus are simple and easy to understand.

picture-1

Create a new virtual machine is really easy and there are a lot of possible tuning (like direct3d compatibility for playing win games using the excellent speed of Vmware Fusion under osx); I had also load some of my old vm machines (created with Infrastructure, with Server, with Workstation, with Easyvmx) and they are fully¬† compatible with this product.Here’s Puppy Linux 4.01 on Leopard:

picture-3

November 13, 2008 Posted by | computer | , , , , , , | Leave a comment

My OS panel

I like minimalism (sometime) and after years I’ve reached the right panel for my Ubuntu 8.04 at work…There are all the things I need:-)

From the left:

1 – Firefox 3.0

2 – Gftp (a very useful ftp and especially ssh client)

3 – Putty (remote terminal on the servers I need)

4 – Krdc (remote access on client/servers, very useful for windows ones)

5 – OpenOffice 2.4 Writer

6 – OpenOffice 2.4 Calc

7 – Skype (last version for Linux is good enough)

8 – Gnome terminal, the most useful software:-)

9 – A smile, that means a link to Vmware Player with a 4.7gb (wow!fit on a dvd-r, a dream for a good backup) virtual winxp machine very well configured for everything that need it (for example the Lotus Domino Administrator…)

10 – Gimp or similiar photo/graphic editor

11 – K3b (burn cd/dvd)

12 – Serpentine (burn audio cds better than its brothers)

13 – Power off…

June 10, 2008 Posted by | computer | , , , , , , , , , , , , , , , , | 1 Comment