Tag Archive for Virtual Machines

Ubuntu upgrades: do a clean installation or use Update Manager?

Part of some recent “fooling” brought on by the investigation of what turned out to be a duff DVD writer was a fresh installation of Ubuntu 8.10 on my main home PC. It might have brought on a certain amount of upheaval but it was nowhere near as severe as that following the same sort of thing with a Windows system. A few hours was all that was needed but the question as to whether it is better to do an upgrade every time a new Ubuntu release is unleashed on the world or to go for a complete virgin installation instead. With Ubuntu 9.04 in the offing, that question takes on a more immediate significance than it otherwise might do.

Various tricks make the whole reinstallation idea more palatable. For instance, many years of Windows usage have taught me the benefits of separating system and user files. The result is that my home directory lives on a different disk to my operating system files. Add to that the experience of being able to reuse that home drive across different Linux distros and even swapping from one distro to another becomes feasible. From various changes to my secondary machine, I can vouch that this works for Ubuntu, Fedora and Debian; the latter is what currently powers the said PC. You might have to user superuser powers to attend to ownership and access issues but the portability is certainly there and it applies anything kept on other disks too.

Naturally, there’s always the possibility of losing programs that you have had installed but losing the clutter can be liberating too. However, assembling a script made up up of one of more apt-get install commands can allow you to get many things back at a stroke. For example, I have a test web server (Apache/MySQL/PHP/Perl) set up so this would be how I’d get everything back in place before beginning further configuration. It might be no bad idea to back up your collection of software sources either; I have yet to add all of the ones that I have been using back into Synaptic. Then there are closed source packages such as VirtualBox (yes, I know that there is an open source edition) and Adobe Reader. After reinstating the former, all my virtual machines were available for me to use again without further ado. Restoring the latter allowed me to grab version 9.1 (probably more secure anyway) and it inveigles itself into Firefox now too so the number of times that I need to go through the download shuffle before seeing the contents of a PDF are much reduced, though not completely eliminated by the Windows-like ability to see a PDF loaded in a browser tab. Moving from software to hardware for a moment, it looks like any bespoke actions such as my activating an Epson Perfection 4490 Photo scanner need to be repeated but that was all that I needed to do. Getting things back into order is not so bad but you need to allow a modicum of time for this.

What I have discussed so far are what might be categorised as the common or garden aspects of a clean installation but I have seen some behaviours that make me wonder if the usual Ubuntu upgrade path is sufficiently complete in its refresh of your system. The counterpoint to all of this is that I may not have been looking for some of these things before now. That may apply to my noticing that DSLR support seems to be better with my Canon and Pentax cameras both being picked up and mounted for me as soon as they are connected to a PC, the caveat being that they are themselves powered on for this to happen. Another surprise that may be new is that the BBC iPlayer’s Listen Again works without further work from the user, a very useful development. It very clearly wasn’t that way before I carried out the invasive means. My previous tweaking might have prevented the in situ upgrade from doing its thing but I do see the point of not upsetting people’s systems with an overly aggressive update process, even if it means that some advances do not make themselves known.

So what’s my answer regarding which way to go once Ubuntu Jaunty Jackalope appears? For sake of avoiding initial disruption, I’d be inclined to go down the Update Manager route first while reserving the right to do a fresh installation later on. All in all, I am left with the gut feeling is that the jury is still out on this one.

A hog removed

Even though my main home PC runs Ubuntu, I still keep a finger in the Windows world using VirtualBox virtual machines. I have one such VM running XP and this became nigh on unusable due to the amount of background processing going on. Booting into safe mode and using msconfig to clear out extraneous services and programs running from system start time did help but I went one step further. Norton 360 (version 2 as it happened) was installed on their and inspection of Process Explorer revealed its hoggish inclinations and the fact that it locked down all of its processes to defend itself from the attentions of malware was no help either (I am never a fan of anything that takes control away from me). Removal turned out to be a lengthy process with some cancelling of processes to help it along but all was much quieter following a reboot; the fidgeting had stopped. ZoneAlarm Pro (the free version that was gifted to users for one day only towards the end of 2008). Windows continues to complain about the lack of an antivirus application that it recognises so resolving that is next on the to do list.

Running Windows 7 within VirtualBox

With all the fanfare that surrounded the public beta release of Windows 7, I suppose that the opportunity to give it a whirl was too good to miss. Admittedly, Microsoft bodged the roll-out by underestimating the level of interest and corralling everyone into a 24 hour time slot with one exacerbating the other. In the event, they did eventually get their act together and even removed the 2.5 million licence limit. I suppose that they really need to get 7 right after the unloved offering that was Vista so they probably worked out that the more testers that they get, the better. After, it might be observed that the cynical view that the era making people pay to “test” your products might be behind us and that users just want things to work well if not entirely faultlessly these days.

After several abortive raids, I eventually managed to snag myself a licence and started downloading the behemoth using the supplied download manager. I foresaw it taking a long time and so stuck with the 32-bit variant so as not to leave open the possibility of that part of the process using up any more of my time. As it happened, the download did take quite a few hours to complete but this part of the process was without any incident or fuss.

Once the DVD image was downloaded, it was onto the familiar process of building myself a VirtualBox VM as a sandbox to explore the forthcoming incarnation of Windows. After setting up the ISO file as a virtual DVD, installation itself was an uneventful process but subsequent activities weren’t without their blemishes. The biggest hurdle to be overcome was to get the virtual network adapter set up and recognised by Windows 7. The trick is to update the driver using the VirtualBox virtual CD as the source because Windows 7 will not recognise it using its own driver repository. Installing the other VirtualBox tools is a matter of going to Compatibility page in the Properties for the relevant executable, the one with x86 in the file name in my case, and setting XP as the Windows version (Vista works just as well apparently but I played safe and depended on my own experience). While I was at it, I allowed the file to run under the administrator account too. Right-clicking on executable files will bring you to the compatibility troubleshooter that achieves much the same ends but by a different route. With the Tools installed, all was workable rather than completely satisfactory. Shared folders have not worked for but that might need a new version of the VirtualBox software or getting to know any changes to networking that come with Windows 7. I plan to stick with using USB drives for file transfer for the moment. Stretching the screen to fit the VirtualBox window was another thing that would not happen but that’s a much more minor irritation.

With those matters out of the way, I added security software from the list offered by Windows with AVG, Norton and Kaspersky being the options on offer. I initially chose the last of these but changed my mind after seeing the screen becoming so corrupted as to make it unusable. That set me to rebuilding the VM and choosing Norton 360 after the second Windows installation had finished. That is working much better and I plan to continue my tinkering beyond this. I have noticed the inclusion of PowerShell and an IDE for the same so that could be something that beckons. All in all, there is a certain solidity about Windows 7 but I am not so convinced of the claim of speedy startups at this stage. Time will tell and, being a beta release, it’s bound to be full of debugging code that will not make it into the final version that is unleashed on the wider public.

An early glimpse of Ubuntu 9.04

Ubuntu development is so gradual these days that there’s almost no point getting too excited about new versions. Its being a mature Linux distribution means that updates aren’t that much of an upheaval and I must admit to liking it than way. Taking a look at the first alpha release of Ubuntu 9.04, otherwise known as “Jaunty Jackalope”, it seems that there isn’t a change to that gradual, some may call it glacial, approach. The biggest change that I noted was the addition of an encrypted private area to your home user area. In the times in which we live, I can certainly see that coming in useful though it may not set pulses racing in some quarters. OpenOffice is still at 2.4 and things don’t appear very different on the surface at all. Of course, things like kernel changes and such like could be going on under the bonnet without many of us noticing it.Saying that, it played well with VirtualBox and I seem to remember virtual machine trouble with early builds of 8.10 so that can be taken as a plus point. I suppose that it is a case of wait and see before there is anything more obviously defining about 9.04. Anyway, they’ve got until April next year…

On Photoshop Elements 7

In recent days, I have been playing around with Photoshop Elements 7, doing the same sort of things that I have been doing with Elements 5. Reassuringly, I can still find my way around, even if the screen furniture has been moved about a little. My Pentax K10D is recognised and I am able to set white balance to get sensible results. On the images that I was testing, things started to look too warm in the Cloudy and Shade settings but that’s all part and parcel of processing photos taken in early November. The results of my exertions look decent enough and you can see them in a post on my hillwalking blog.

I realise that Adobe has been promoting the ability to easily airbrush unwanted objects from images and enhance blue skies but there’s no point having all of that if functionality available in previous versions does not work as expected. Thankfully, this is largely the case but there are a few niggles. I have working the new Elements on a Windows XP SP3 virtual machine running in VirtualBox 2.04 on Ubuntu 8.10 so I don’t know if that contributed in any way to what I encountered. One gigabyte of memory is allocated to the VM. The files were stored in the Ubuntu file system and accessed using VirtualBox’s functionality for connecting through to the host file system. File access was fine but I was unable to directly open a file for full editing from the Organiser, something that I have doing very happily with Elements 5. I also noted a certain instability in the application and using the hand tool to get to the top left hand corner of an image sent the thing into a loop, again something that Elements 5 never does. Otherwise, things work as they should but what I saw points to the need for an update to correct any glitches like these and I hope that there is one. For now, I will persevere and see if I can make use of any additional functionality along the way.

Getting VirtualBox 2.02 working on Ubuntu 8.04

Seamless VirtualBox VM Application Windows on Ubuntu

Seamless VirtualBox VM Application Windows running on Ubuntu

Having run VirtualBox OSE (1.5.6) for a while now, I succumbed to the idea of grabbing the latest version from the VirtualBox website and putting it on my main Linux box. The idea of having 64-bit support proved irresistible and I did get OpenSolaris to start, even if its being a VMware VM meant that it stalled along the way.

To do this, I needed to rid my system of all traces of the old version before 2.02 would install with a system reboot being needed before the process of installation fully completed. Then, I fired up a Windows XP virtual machine only for it to completely freeze. The hint as to the cause came when I opened up the VM’s settings for the following message to greet me:

Could not load the Host USB Proxy Service (VERR_FILE_NOT_FOUND). The service might be not installed on the host computer.

While it didn’t stop things in their tracks when it came to accessing and changing those settings, it was a vital hint for working out what was happening. It now seems that a problem with USB port support was the cause. The fact that issuing the following command got things going for me appeared to confirm the prognosis.

sudo  mount -t usbfs /sys/bus/usb /proc/bus/usb/

Of course, not wanting to have to issue the same command over and over again, I was after a more permanent solution. That involved adding the following lines to /etc/fstab:

#usbfs

none /proc/bus/usb usbfs devgid=46,devmode=664 0 0

A reboot later. that change apparently was enough to settle the matter and I am now able to run VM’s as before. Seamless application mode is going well (the host key – right Ctrl by default – + L key combination is sufficient to toggle the setting on and off), even if it has a few quirks. Two that I have spotted include the usual Ubuntu screen furniture disappearing when maximised windows are displayed and the Windows taskbar appearing when two or more applications are running. That last one may be just as well because individual applications don’t get an Ubuntu taskbar icon each, which is perhaps an idea for a future enhancement. Updating Guest Additions in a VM’s doesn’t seem to change the behaviour but any imperfections are curiosities rather than complaints given how well things run anyway, unless you decide to confound matters by closing and minimising windows but resolving that is just a toggle away. It’s all looking good so far…

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