Ubuntu 12.04 - Notes for install

M

musky

[H]ard|DCer of the Year 2012
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3/20/2013 - Removed all references to I/O, as this is being handled now by folding on a ramdisk.

For my new 4p, I went with Ubuntu 12.04 Server instead of my beloved 10.10 Server. 12.04 is an LTS (long term support) release, which is good news for folders I suppose. So far, I am not seeing any reason to not go with 12.04 for a new install. I have found one issue that can be addressed pretty easily after you install it. Note that I use the server version, so I can't comment about Unity or anything else regarding the Desktop GUI. My first impression if Unity was that it sucks, but is functional if you dig long enough to find what you are looking for.

Static IP Address Issues - I know this is a problem if you try to manually update your machine to use a static IP adress by editing /etc/network/interfaces. I have no idea if the GUI tool will run into the same issue, but I doubt it. Odds are that you will not need to do this unless you use the server version and switch to a static IP address. The issue is that /etc/resolv.conf is no longer a static file, so you need to list dns server info in /etc/network/interfaces now. If you can't connect to sites by name, you may have this issue. The fix is simple - add a "dns-nameservers=" line to /etc/network/interfaces:
Code: 
dave@cowgirl:~$ cat /etc/network/interfaces
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
auto eth0
#iface eth0 inet dhcp
iface eth0 inet static
        address 192.168.1.170
        netmask 255.255.255.0
        network 192.168.1.0
        broadcast 192.168.1.255
        gateway 192.168.1.1
        dns-nameservers 192.168.1.1
192.168.1.1 is my router's interal IP address. I'm sure you could list other dns server IP addresses here. You shouldn't need to, though.

I'll list other things if I find them. In general, 12.04 seems to be a very stable release. If you are doing a new install and don't want to use 10.10, 12.04 looks like a good choice.
 
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i upgraded all my rigs to 12.04 couple of weeks ago and its working nicely after tear fixed the barrier issue for me.
 
I believe tear said barrier's are enabled by default for all file systems in 12.04 when he was looking inside my box back when it was initially discovered. And I do agree with Musky on the Desktop GUI it was very uncomfortable for me to use when I had it installed a while back.

Most likely was because it was something new and I had to search for everything though. Some of us older farts have trouble with new things. ;)
 
tear said:
It does not as ext2 isn't a journalling file system.
Click to expand...

How about if the partition is formatted as ext4 but mounted as ext2? :)
Sorry if I'm being a pita :D I have an SSD which I'd like to format as ext4 but mount as ext2 because I read that it improves the performance that way, idk by how much though...
 
Is it possible to just upgrade the existing 10.10 system to 12.04, or would a clean format / install be recommended? I set everything up under 10.10 and then forgot about it - it just runs like it's supposed to. :D

I've got an extra drive here if I need to do a clean setup again.

Thanks in advance... Robert
 
For dedicated folder there's no real incentive to upgrade from 10.10. If it works..,
 
tear said:
For dedicated folder there's no real incentive to upgrade from 10.10. If it works..,
Click to expand...

Roger that...I won't worry about it then. I wasn't sure if there was anything extra that 12.04 brought to the table or not. I usually turn on my monitor every few days just to check things, but other than that she just keeps on crunching. :cool:

Robert
 
I agree with tear on this - there is no compelling reason to not use 10.10 or to upgrade from 10.10.
 
musky said:
I agree with tear on this - there is no compelling reason to not use 10.10 or to upgrade from 10.10.
Click to expand...

As far as performance and stability, I completely agree, but what about security? What is the level of risk associated with continuing to run an unsupported OS? Will there even be any way of knowing if 10.10 is vulnerable in the future? Having fallen out of support, does that mean that no further testing will be done against this version? If this is the case, that would be my compelling reason to upgrade.

Also, I'd like to know the answer to the question of clean install or upgrade from 10.10 as well.
 
rhavern said:
As far as performance and stability, I completely agree, but what about security? What is the level of risk associated with continuing to run an unsupported OS? Will there even be any way of knowing if 10.10 is vulnerable in the future? Having fallen out of support, does that mean that no further testing will be done against this version? If this is the case, that would be my compelling reason to upgrade.

Also, I'd like to know the answer to the question of clean install or upgrade from 10.10 as well.
Click to expand...

If you are honestly concerned about the Linux security for your folding boxes, by all means use a supported version. I am not at all concerned myself, which is why I never install updates or update versions. To each his own though.

I have heard too many horror stories about upgrading Ubuntu to recommend it, but at the same time I have a box that was upgraded from 10.10 Server to 11.04 Server to 11.10 Server without any issues at all. Again, it is entirely up to you. I won't be doing any upgrade testing myself.
 
Upgraded from 10.10 to 11.10 Desktop .. it is horrible. 11.10 Desktop lay out is like win7 ...( if comparing between 10.10 vs 11.10 - like winxp vs win7)
Tough to find what you need like: system settings, prefs...... Not recommend to upgrade to desktop version -- if it is dedicated folding box and you're not GUI person :D
 
For dedicated folder there's no real incentive to upgrade from 10.10. If it works..,
Click to expand...
Five months later from this advice, has the opinion changed any?
 
@musky, in my lab environment fah client can't connect to WU assign servers. I have windows VPN server on other network that can reach , so thinking about setup pptp VPN on Ubuntu.
 
kevinksu said:
@musky, in my lab environment fah client can't connect to WU assign servers. I have windows VPN server on other network that can reach , so thinking about setup pptp VPN on Ubuntu.
Click to expand...

I would strongly recommend that you start a new thread on this in the main DC forum (not the guides forum.) The topic really has nothing to do with tweaking an Ubuntu 12.04 install. I actually want to rename this thread since it is old and the only useful piece of info today is how to set up a static IP address. I don't want your post to get lost when we make that change. It is a valid topic, and unfortunately is one I know nothing about. I do suspect that we have some IT guys who can help you, though. They just need to see the question in a properly named thread in the main DC forum.
 
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