Tag Archive for Linux

Widely differing approaches

January 28, 2012 No comments

The computer on which I am writing these words is running Linux Mint with the Cinnamon desktop environment, a fork of GNOME Shell. This looks as if it is going to be the default face of GNOME 3 in the next version of Linux Mint with the MGSE dressing up of GNOME Shell looking more and more like an interim measure until something more consistent was available. Some complained that what was delivered in version 12 of the distribution was a sort of greatest hits selection but I reckon that bets were being hedged by the project team.

Impressions of what’s coming

By default, you get a single panel at the bottom of your screen with everything you need in there. However, it is possible to change the layout so that the panel is at the top or there are two panels, one at the top and the other at the bottom. So far, there is no means of configuring which panel applet goes where as was the case in Linux Mint 11 and its predecessors. However, the default placements are very sensible so I have no cause for complaint at this point.

Just because you cannot place applets doesn’t mean that there is no configurability though. Cinnamon is extensible and you can change the way that time is displayed in the clock as well as enabling additional applets. It also is possible to control visual effects such as the way new application windows pop up on a screen.

GNOME 3 is there underneath all of this though there’s no sign of the application dashboard of GNOME Shell. The continually expanding number of slots in the workspace launcher is one sign as is the enabling of a hotspot at the top right hand corner by default. This brings up an overview screen showing what application windows are open in a workspace. The new Mint menu even gets the ability to search through installed applications together with the ability to browser through what what’s available.

In summary, Cinnamon already looks good though a little polish and extra configuration options wouldn’t go amiss. An example of the former is the placement of desktop numbers in the workspace switcher and I already have discussed the latter.  It does appear that the Linux Mint approach to desktop environments is taking shape with a far more conventional feel that the likes of Unity or GNOME Shell. Just as Cinnamon has become available in openSUSE, I can see it gracing LMDE too whenever Debian gets to moving over to GNOME 3 as must be inevitable now unless they take another approach such as MATE.

In comparison with revolution

While Linux Mint are choosing convention and streamlining GNOME to their own designs, it seems that Ubuntu’s Unity is getting ever more experimental as the time when Ubuntu simply evolved from one release to the next becomes an increasingly more distant memory. The latest development is the announcement that application menus could get replaced by a heads up display (HUD) instead. That would be yet another change made by what increasingly looks like a top down leadership reminiscent of what exists at Apple. While it is good to have innovation, you have to ask where users fit in all of this but Linux Mint already has gained from what has been done so far and may gain more again. Still, seeing what happens to the Ubuntu sounds like an interesting pastime though I’m not sure that I’d be depending on the default spin of this distro as my sole operating system right now. Also, changing the interface every few months wouldn’t work in a corporate environment at all so you have to wonder where Mark Shuttleworth is driving all this though Microsoft is engaging in a bit of experimentation of its own. We are living in interesting times for the computer desktop and it’s just as well that there are safe havens like Linux Mint too. Watching from afar sounds safer.

Linux, Software

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A few thoughts on Ubuntu 12.04 Alpha 1

January 22, 2012 One comment

After an aborted installation in VirtualBox using the direct installation, I got a VM instance of Ubuntu 12.04 in place by installing from a loaded Live CD session. That proceeded without any trouble and downloaded the required updates too. First impressions revealed a polished Unity interface that ran without any crashes. Adding VirtualBox’s Guest Additions in the usual way was all that was needed to tart up the experience even more. However, there remains a wish list for improvements to unity so here are mine:

  1. Merging of an application title bar with the desktop’s top panel on maximisation: In 11.10, removing the appmenu packages does force menus into application windows and that seems to be destined as a configurable item in Unity at some point; it’d be good to see it in 12.04 though it’s not in the first alpha release. the merging of the panel and title bar would be a good thing to have as a user setting too because I am unconvinced by the current behaviour when there is plenty of screen space.
  2. Rearranging icons on the application launcher: There seems to be no obvious way to do this at the moment and attempting to move them with a mouse only moves the launcher up and down. There is no doubt that this behaviour is a bonus for those working with small screens but it is a nuisance unless there is another means for achieving the same end.
  3. Desktop environment switcher on the login screen: This seems to have disappeared for now. Hopefully, this is an oversight that will see correction in later stages of the development of Ubuntu 12.04. This is how I currently get Ubuntu 11.10 to boot into GNOME Shell so its loss would be a step backwards. Then, a Gubuntu project would become truly necessary though I have to say that Linux Mint makes such a good alternative that I wonder how they would get going.

In summary, it does look as if the Unity interface is getting more and more polished. However, there are niggles that I have described above that I think need addressing and I hope that many of them will addressed in either 12.04 or 12.10. Usability seems to be improving but I still am left with the impression that it has a way to go yet.

Linux, Software

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A little more freedom

December 10, 2011 2 comments

A few weeks ago, I decided to address the fact that my Toshiba laptop have next to useless battery life. The arrival of an issue of PC Pro that included a review of lower cost laptops was another spur and I ended up looking on the web to see what was in stock at nearby chain stores. In the end, I plumped for an HP Pavilion dm4 and it was Argos that supplied yet another piece of computing kit to me. In fact, they seem to have a wider range of laptops than PC World!

The Pavillion dm4 seems to come in two editions and I opted for the heavier of these though it still is lighter than my Toshiba Equium as I found on a recent trip away from home. Its battery life is a revelation for someone who never has got anything better than three hours from a netbook. Having more than five hours certainly makes it suitable for those longer train journeys away from home and I have seen remaining battery life being quoted as exceeding seven hours from time to time though I wouldn’t depend on that.

Of course, having longer battery life would be pointless if the machine didn’t do what else was asked of it. It comes with the 64-bit of Windows 7 and this thought me that this edition of the operating system also runs 32-bit software, a reassuring discovering. There’s a trial version of Office 2010 on there too and, having a licence key for the Home and Student edition, I fully activated it. Otherwise, I added a few extras to make myself at home such as Dropbox and VirtuaWin (for virtual desktops as I would in Linux). While I playing with the idea of adding Ubuntu using Wubi, I am not planning to set up dual booting of Windows and Linux like I have on the Toshiba. Little developments like this can wait.

Regarding the hardware, the CPU is an Intel Core i3 affair and there’s 4 MB of memory on board. The screen is a 14″ one and that makes for a more compact machine without making it too diminutive. The keyboard is of the scrabble-key variety and works well too as does the trackpad. There’s a fingerprint scanner for logging in and out without using a password but I haven’t got to checking how this works so far. It all zips along without any delays and that’s all that anyone can ask of a computer.

There is one eccentricity in my eyes though and it seems that the functions need to be used in combination with Fn for them to work like they would on a desktop machine. That makes functions like changing the brightness of the screen, adjusting the sound of the speakers and turning the WiFi on and off more accessible. My Asus Eee PC netbook and the Toshiba Equium both have things the other way around so I found this set of affairs unusual but it’s just a point to remember rather than being a nuisance.

HP may have had its wobbles regarding its future in the PC making business but the Pavilion feels well put together and very solidly built. It commanded a little premium over the others on my shortlist but it seems to have been worth it. If HP does go down the premium laptop route as has been reported recently, this is the kind of quality that they would need to deliver to just higher prices. Saying that, is this the time to do such a thing would other devices challenging the PC’s place in consumer computing? It would be a shame to lose the likes of the Pavilion dm4 from the market to an act of folly.

Hardware

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Getting Gnome Shell going for Fedora 16 running in VirtualBox

December 5, 2011 6 comments

There are a number of complaints out there about how hard it is to get GNOME Shell running for a Fedora 16 installation in a VirtualBox virtual machine. As with earlier versions of Fedora, preparation remains a matter of having make, gcc and kernel-devel (kernel headers, in other words). While I have got away with just those, adding dkms (dynamic kernel module support) to the list might be no bad idea either. To get all of those instated, it is a matter of running the following command as root or using sudo:

yum -y install make gcc kernel-devel dkms

The -y switch ensures that any Y/N prompts that usually appear are suppressed and that the installation is completed. Just leave it out if you are inclined to get second thoughts. Another item that has been needed with a previous release of Fedora is libgomp but I haven’t had to add this for Fedora 16 if I remember correctly.

Once those are in place, it is time to install the VirtualBox Guest Additions.  Going to Devices > Install Guest Additions… mounts a virtual CD that can be used for the installation of the various drivers that are needed. To do the installation, first go to where the installer is located using the following command:

cd /media/VBOXADDITIONS_4.1.6_74713/

Note that this location will change according to the release and build numbers of VirtualBox but the process essentially will be the same other than this. Once in there, issue the following command as root or using sudo:

./VBoxLinuxAdditions.run

Hopefully, this will complete without errors now with the precursor software that has been added beforehand. However, there is one more thing that needs doing or you will get the GNOME 3 fallback desktop instead. It pertains to SELinux, an old adversary of mine that got in the way when I was setting up a web server on a machine running Fedora. It doesn’t recognise the new VirtualBox drivers as it should so the following command needs executing as root or using sudo:

restorecon -R -v /opt

Doing this restores the SELinux contexts for the /opt directories within which the VirtualBox software directories are found. The -R switch tells it to act recursively and -v makes it verbose. When it has done its work, hopefully successfully, it is time to reboot the virtual machine and you should have a GNOME Shell desktop interface when you log in.

Linux, Software, Virtualisation

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An in situ upgrade to Linux Mint 12

December 4, 2011 6 comments

Though it isn’t the recommended approach, I have ended up upgrading to Linux Mint 12 from Linux Mint 11 using an in situ route. Having attempted this before with a VirtualBox hosted installation, I am well aware of the possibility of things going wrong. Then, a full re-installation was needed to remedy the situation. With that in mind, I made a number of backups in the case of an emergency fresh installation of the latest release of Linux Mint. Apache and VirtualBox configuration files together with MySQL backups were put where they could be retrieved should that be required. The same applied to the list of installed packages on my system. So far, I haven’t needed to use these but there is no point in taking too many chances.

The first step in an in-situ Linux Mint upgrade is to edit /etc/apt/sources.list. In the repository location definitions, any reference to katya (11) was changed to lisa (for 12) and the same applied to any appearance of natty (Ubuntu 11.04) which needed to become oneiric (Ubuntu 11.10). With that done, it was time to issue the following command (all one line even if it is broken here):

sudo apt-get update && sudo apt-get upgrade && sudo apt-get
dist-upgrade

Once that had completed, it was time to add the new additions that come with Linux Mint 12 to my system using a combination of apt-get, aptitude and Synaptic; the process took a few cycles. GNOME already was in place from prior experimentation  so there was no need to add this anew. However, I need to instate MGSE to gain the default Linux Mint customisations of GNOME 3. Along with that, I decided to add MATE, the fork of GNOME 2. That necessitated the removal of two old libraries (libgcr0 and libgpp11, if I remember correctly but it will tell you what is causing any conflict) using Synaptic. With MGSE and MATE in place, it was time to install LightDM and its Unity greeter to get the Linux Mint login screen. Using GDM wasn’t giving a very smooth visual experience and Ubuntu, the basis of Linux Mint, uses LightDM anyway. Even using the GTK greeter with LightDM produced a clunky login box in front of a garish screen. Configuration tweaks could have improved on this but it seems that using LightDM and Unity greeter is what gives the intended set up and experience.

With all of this complete, the system seemed to be running fine until the occasional desktop freeze occurred with Banshee running. Blaming that, I changed to Rhythmbox instead though that helped only marginally. While this might be blamed on how I did the upgraded my system, things seemed to have steadied themselves in the week since then. As a test, I had the music player going for a few hours and there was no problem. With the call for testing of an update to MATE a few days ago, it now looks as if there may have been bugs in the original release of Linux Mint 12. Daily updates have added new versions of MGSE and MATE so that may have something to do with the increase in stability. Even so, I haven’t discounted the possibility of needing to do a fresh installation of Linux Mint 12 just yet. However, if things continue as they are, then it won’t be needed and that’s an upheaval avoided should things go that way. That’s why in situ upgrades are attractive though rolling distros like Arch Linux (these words are being written on a system running this) and LMDE are moreso.

Linux, Software

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