14 August 2012

219. Seeing animals in metropolitan Melbourne

As a foreigner in Melbourne one of my first questions to my local pals was where I could see typical Aussie animals. The answer was 'The Zoo', which just doesn't cut it.

Well, it would've helped if I had asked the more outdoorsy types, because you can actually be fairly sure to catch glimpses of kangaroos, wallabies, bandicoots, corellas, rosellas, cockatoos and kookaburras without having to travel too far. This is biased towards the eastern suburbs, since that's where I roam.

I (almost) always see...

Kangaroos: As it turns out,  the most iconic animal of Australia is very easy to find around Melbourne. Sure, it's Grey Kangaroo and not the perhaps more famous Red Kangaroo, but they are everywhere if you know where to look, and in many places they are used to humans.
This is one kangaroo that isn't bothered by human presence. Lysterfield Lake Park on Tramline track.

On the best places is along Tram Line Track in Lysterfield Lake Park:
Lysterfield Lake Park

Tram line track is where the action's at

The walking's easy for the most part. Some of the tracks get soggy and muddy due to bikes and horses ruining them.

For the most part, the park's flat.
If you go on the smaller trails and keep quiet you may spot the odd Swamp Wallaby -- they are much smaller, solitary and tend to leg it whenever they see humans. Apart from their difference in size and fuzzier fur, you can recognise them by 1. they are (almost) always alone, 2. their tail is white-tipped and 3. their stance when hopping is different from that of kangaroos (lean forward more).

Other safe places to spot kangaroos would be Churchill national park, the area around Police Paddocks, and Cardinia Lake Park -- but Cardinia Reservoir Park tends to get really busy with people playing games and bbq:ing which tends to ruin the experience.

 Lysterfield Park north of Wellington road also has a lot of Kangaroos, but they aren't always easy to spot.

Wallabies: The Swamp Wallaby is quite common around Melbourne, but is much more shy than Kangaroos. It's also solitary -- if you spot a kangaroo you know that there are others around, but not so with wallabies.
The picture is heavily overexposed to show the wallaby hiding in the shade off of Possum Gully track in Cranbourne

The best place to spot wallabies seems to be the park surrounding the Botanical Park in Cranbourne. If you're quiet and attentive you will spot Wallabies in the sandier parts of the park before they run away. If you bring binoculars you're like to see wallabies hiding in the stands of ferns abutting the forests or in the middle of the fields. Again, they take a bit more patience to spot.

Cranbourne Botanic Gardens

Sometimes you can spot Wallabies among the fern in the more open part of the park

Otherwise, carefully walk on the sandier tracks among the scrub -- and be aware that any wallaby that sees you will either leg it, or stand absolutely still in the shade. So you need keen eyes.


I've seen wallabies up by Lysterfield Lake Park every time I go there, but you'll have to find the smaller tracks/breaks to spot them.

Crimson Rosellas: This is a typical forest parrot. Dandenong Ranges is a great place to see them, and because of their crimson red colour they aren't that difficult to spot. The young are green and tend to form flocks towards the end of summer. You sometimes see a single green young and its two parents as well earlier in the summer.
Just outside Churchill national park

The best places to spot them  is in shaded and wooded areas right at the edge of the woods. Rock track next to the golf course outside Olinda tends to be good, but in general, these birds are fairly common in the area. Typically you'd see a pair, but the young do flock at times.

A flock of crimson rosellas




Rock track

The lookout on Chalet road is a good place to park your car and start walking.

Another safe place is Grant's Picnic Ground north of Belgrave. There's an area where you can feed the parrots, and it's mostly cockatoos and rosellas. Just be warned -- they bring in bus-loads of tourists, so if you're looking for a 'wild' experience it can be a bit disappointing. The parrots are wild and free alright, but they are certainly used to the presence of humans.

Grant's picnic ground. It has some nice tracks as well.

There's a visitor centre where you can buy birdseed.



Sulphur-crested Cockatoos:
A cockatoo grazing on a football field in the morning sun

Apart from Grant's Picnic Ground (see Crimson Rosellas) where you are more or less guaranteed to find them, the area around Shepherd's bush in the Dandenong Valley area is pretty good. It also has the advantage of being easy to get to.

Eastern Rosellas: Probably the prettiest parrot I've seen. It's not always that easy to find, but it tends to be in more open areas than the Crimson Rosella. Also, it tend to forage on the ground. Normally, using your ears is the way to know where to look Rosellas have a much more melodic call than the other parrots and are easy to distinguish based on that alone.
They are small and fairly shy. The red head gives it away though.  Police Paddocks.
The best area so far seems to be Police paddocks just east of Stud Road in the city's far east, where there's a bit of open forest. You're likely to spot Kangaroos there as well.


Southern Brown Bandicoot: 
I've seen them two out of three time when visiting Cranbourne botanic gardens (See Wallabies above). They are normally around the visitor centre and the BBQ area. If you walk into the park you might see them cross the road. Going on the smaller tracks along the fence tends to be rewarding as well. Basically think of them as big rats in terms of what you're looking for -- they are less paranoid than rats, but you should still walk softly.
A large bandicoot over by the playground behind Cranbourne botanic gardens

Rainbow Lorikeets: You see them everywhere in the eastern suburbs. If you want to see them up close, look for e.g. flowering bottle brush and you might get lucky.
A rainbow lorikeet in our garden.
Kookaburras: Kookaburras aren't rare, but can be tricky to locate. The only place which has always  produced consistent sightings is Lysterfield Lake Park -- again on tramline track. Otherwise, the more open patches of forest (mountain ash) up in Dandenong ranges can yield lots of sightings depending on season. If you go along trig track up by the sky high observatory in the Dandong ranges you may spot lots of kookaburras and crimson rosellas. Otherwise, rock track over by Olinda occasionally has the odd kookaburra laughing away.
Laughing kookaburra at Cardinia Reservoir.


I have once seen...

Echidnas: I've seen one on a track in Cardinia Reservoir Park, and one next to the road (alive and digging) in the area surrounding the Cranbourne Botanic Gardens. You're unlikely to spot them. Instead, use your ears -- you'll hear them digging in the grass/leaves.

Normally Echidnas are camera shy, but this guy was happy to pose.

Emu: I've only seem one once, and that was just east of Cardinia Reservoir Park, while driving on Red Hill road. The emu was in the fenced off area belong to Melbourne Water.
A lone emu near Cardinia.


Corellas: from time to time I see lots of them -- they seem to be very common in the area around Monash University, but they aren't always there when I visit. Especially the corner of Blackburn road and Wellington road occasionally has flocks of them.

Little Corellas hanging out in a town along Great Ocean Road.



11 August 2012

218. The end of Gnome in Debian?

Update 12/11/2012: And we're back to gnome: http://www.phoronix.com/scan.php?page=news_item&px=MTIyNTM

This is a bit of a bombshell: http://www.phoronix.com/scan.php?page=news_item&px=MTE1NTk

Also reported here: http://www.h-online.com/open/news/item/Debian-to-use-Xfce-as-its-standard-desktop-1663868.html
and here: http://www.neowin.net/news/debian-drops-gnome-chooses-xfce-as-default-desktop
and here: http://linux.slashdot.org/story/12/08/08/1455243/debian-changes-default-desktop-from-gnome-to-xfce

UPDATE: No, I don't have any more information. However, I've been thinking a little bit about this. Debian is not a targeted distro like Ubuntu, Red Hat, SUSE or Mint. I'm not sure how the discussions among the debian package maintainers go, but I'm suspecting that it's more of a matter of ironing out reported bugs, than to focus on providing a 'user experience'. SID and Testing are rolling releases, after all. So 'dumping' gnome really won't affect anything at all very much in the short to medium term. Those who like KDE will use KDE. Those who like Gnome will use Gnome. And so on. In the long term, enough people may encounter XFCE as their first DE via Debian that it starts to change the balance in the user bases of the different DEs, but given that a great majority of both current and future debian users come to debian via other distros  -- from red hat/fedora/knoppix back in the days, then ubuntu in the late 2000s, and now perhaps mint -- many users probably both have both experience in how to set up different DEs and preferences as to which one they want to use.

So yeah. Sorry about the hyperbole in the title.

Original post:
Basically, Debian is thinking about dropping Gnome as the default desktop and replacing it with XFCE when Wheezy goes stable. The official reason is (CD ROM) space, not that there's any issues with GNOME 3.

I wouldn't be surprised if the rumoured difficulties in communicating with the Gnome crowd may have played a role, in addition to the (a bit hysterical at times) general dissatisfaction with GNOME 3.

Having 'grown up' with gnome (Baby Duck Syndrome) I think it's sad news -- gnome is pretty, functional and makes linux just different enough to give it a distinct look.

[Btw, this article about the Baby Duck Syndrome is a nice read: http://www.ibm.com/developerworks/web/library/wa-cranky50/index.html ]

XFCE, LXDE and KDE are all capable desktops, and I've played with LXDE and KDE recently. Not being that familiar with XFCE -- or even LXDE really -- it does appear to me that what really sets KDE and GNOME apart is that they come with a complete package -- KDE and GNOME all have their awkwardly named software applications: epiphany vs konqueror, evolution vs kmail etc.

Apart from lxterminal and lxmusic for lxde, and thunar for xfce, similar DE specific apps appear to be thin on the ground for LXDE and XFCE. That's not necessarily a big issue, but we've all had issues with GTK vs QT and how pieces of software using either framework look in different environments. It's hardly a disaster, but just enough to be noticeable.

It would also be interesting if the netinstall and business-card isos would ask about which specific DE to install, rather than just ask about whether a desktop is to be installed , in particular if debian is interested in experimenting.

Offering more choice would really not be that bad of an idea. Personally, and for my own biased reasons, I'm  much more interested in LXDE than XFCE, and more interested in GNOME than KDE. XFCE, the way it's implemented in Debian Squeeze, looks a bit dated -- basically like GNOME 2. While I'm not really into that, given the uproar during the past year a lot of people seem to prefer the old gnome 2 look. Besides, the strength of the old desktops is that you can theme and modify them to the point of no recognition.

And if we're talking about slim installs of debian, we really should take a look at Crunchbang (#!) as well, which uses openbox.

Finally, what about Jessie? Will GNOME be back or is this the defining moment for XFCE?

31 July 2012

217. Recently...

Recently I've been busy preparing lectures (phew!), which means I've been kinder to my computer than is normal. Still, I managed to get myself into a few situations. The need to 'get stuff done' overrode the importance of documentation, but here's the low-down in case someone finds themselves in a similar situation:


1. Upgrades keep on getting stuck when restarting nfs/nfsd (nfs-common, nfs-kernel-server).
Normally I don't have any problems with nfs -- it's a tried and tested technology -- but one of my cluster nodes was giving me grief.

The key was to comment out everything in /etc/exports and commenting out nfs mounted partitions in /etc/fstab, then adding nfs and nfsd to /etc/modprobe.d/blacklist.conf (not sure this actually did anything), rebooting, throwing in

sudo rmmod nfs nfsd 


to be on the safe side, then doing

sudo dpkg --configure -a

to get dpkg/apt back in working order. After that I could uncomment everything in /etc/exports and /etc/fstab, and whitelist my drivers again.

Problem solved.

2. Nvidia is still a headache.
Since I was given a rare opportunity to reboot my front node I did a bit of work on it. Mainly, I wanted to allow gdm to start again, and figured I'd return to my nvidia driver managment to dkms-y goodness.

So I fired up smxi, selected 'debian-nvidia' and...everything was messed up. Long story short: I got it working with gdm3 by picking 'current driver' in smxi (always blacklist nouveau if you want to use/install nvidia drivers), making sure that there was no 'vga' (e.g.  vga=0x0318 ) in GRUB_CMDLINE_LINUX in /etc/default/grub and rebooting liberally.

I later got the debian-nvidia (dkms) version working by 1) not using frambuffer and 2) manually removing all nvidia legacy drivers that smxi pulled in. Well, that's working as in no error messages and the desktop looking fine.

3. GNOME 3 not diplaying all letters
e.g. 'guake' was rendered as 'g ak '. This happened on a low-powered system. A 'fix' was to go to advanced settings (gnome-tweak-tool), select font and change scaling from 1.0 to 1.2 and above.

It's not much of a 'fix', so I ended up nuking GNOME from that system and replacing it with KDE to have a reason to get more familiar with it. In the interest of balance I nuked all other DEs from another box and put LXDE on it. To paraphrase the Dos Equis commercial: I don't always use a DE, but when I do, I want to learn something new.

I've used KDE and GNOME on and off over the past 12 years, but you get rusty -- and both KDE and GNOME have changed enough from v 3.x and 2.x, respectively, that they aren't the same environment anymore. I still get an initial feeling of joy when I sit down by an NMR console and discover a red hat system with a 3.x desktop. Which is quickly followed by being annoyed over not having root access, but whatever. As for the usual gnome 2 vs gnome 3 arguments -- I like gnome3 in general. I just hate the idea of settings being hidden or disabled, and functionality being reduced. Enough so that I'm still looking for a potential replacement.

So far :
KDE -- I like it. It's overdoing the desktop effects a bit (out of the box) but, since it's KDE, it's easy to turn things on and off. I'm still a GNOME man, and KDE doesn't have the warm fuzzy feeling of home yet, but I can see how I could get used to it. I just need to get over my outdated idea that KDE is for windows users (I've never used a Mac so I guess I'm a reformed windows -- actually DOS -- user more than anything else).

KDE on one of my other systems seems to be messing up GNOME 3 though -- e.g. the mouse cursor theme gets transferred to gnome, and the pop-up notifications are those of kwin and not gnome-shell.  Not sure whether it's KDE causing it or whether I've messed a bit too much with my system.

LXDE -- it's functional and has long been my choice for virtual installations of linux for windows users. It's minimalistic in the sense that yes, it does provide a desktop, but no, it doesn't try to do anything beyond providing a set of menus and a bit of themeing. And that's a good thing. If you're going to impress a mate -- use gnome or kde. If you just need to get something done and launch a piece of software, lxde's your mate.

4. One of my systems lacked /etc/init.d/vboxdrv
Not all my collaborators use linux, so I keep a virtual copy of XP around for when I'm absolutely forced to use MS Word (OpenOffice sometimes changes the layout and it quickly becomes messy on collaborative documents). When taking a quick break to edit a manuscript in virtualbox I got the usual no driver present, 'run /etc/init.d/vboxdrv setup' message. Well, there was no /etc/init.d/vboxdrv in spite of dkms and vboxdrv-dkms being installed in addition to all the kernel headers. Turns out that the quickest way, assuming that locate vboxdrv doesn't come up empty (i.e. it's somewhere in the kernel tree) is just to mod it.
modprobe vboxdrv


To avoid it in the future, stick
vboxdrv
somewhere in your /etc/modules


5. Mysteriously self-rotating gnuplot images in latex 
Came down to a stupid mistake. I was doing:

set term postscript enhanced colour
set output 'acid.eps'
set border 3
set xtics nomirror
set ytics nomirror

I forgot to add eps -- getting rusty I suppose.

set term postscript enhanced eps colour
set output 'acid.eps'
set border 3
set xtics nomirror
set ytics nomirror

Surprised it hasn't happened before during all these years of latex usage.

6. Setting default line printer
me@beryllium:$ lpq
lpq: Error - no default destination available.



me@beryllium:$ lpstat -a
AdobePDF accepting requests since Mon 06 Aug 2012 08:01:32 EST
AdobePDF7 accepting requests since Mon 06 Aug 2012 08:01:32 EST
AdobePDF8 accepting requests since Mon 06 Aug 2012 10:04:13 EST
AdobePDF8@johnbowmansimac.dbs.monash.edu.au accepting requests since Mon 06 Aug 2012 08:01:32 EST
AdobePDF9 accepting requests since Mon 06 Aug 2012 08:01:32 EST
AdobePDF9@130.194.162.66 accepting requests since Mon 06 Aug 2012 08:01:32 EST
biol08r159p1 accepting requests since Mon 06 Aug 2012 08:01:32 EST
Canon_iP4300 accepting requests since Mon 06 Aug 2012 08:01:32 EST
Canon_MP460 accepting requests since Mon 06 Aug 2012 10:09:36 EST
Colour_109a accepting requests since Mon 06 Aug 2012 08:01:32 EST
global-mfp accepting requests since Mon 28 May 2012 14:27:30 EST
GlobalMFP@s0001203.dbs.monash.edu.au accepting requests since Mon 06 Aug 2012 08:01:32 EST
HP_LaserJet_Professional_P1102w accepting requests since Sat 04 Aug 2012 23:08:16 ESTHPColourLaserCP3505 accepting requests since Mon 06 Aug 2012 08:01:32 EST
HPLaserJetP3005 accepting requests since Mon 06 Aug 2012 08:01:32 EST

 me@beryllium:$ lpoptions -d HP_LaserJet_Professional_P1102w
auth-info-required=none copies=1 device-uri=hp:/usb/HP_LaserJet_Professional_P1102w?serial=000000000Q91K4WVSI1c finishings=3 job-hold-until=no-hold job-priority=50 job-sheets=none,none marker-change-time=0 number-up=1 printer-commands=AutoConfigure,Clean,PrintSelfTestPage printer-info='HPIJS -- drv:///hpijs.drv/hp-laserjet_professional_p1102w-hpijs.ppd' printer-is-accepting-jobs=true printer-is-shared=true printer-location printer-make-and-model='HP LaserJet Professional p1102w, hpcups 3.12.4, requires proprietary plugin' printer-state=5 printer-state-change-time=1344085696 printer-state-reasons=paused printer-type=8425484 printer-uri-supported=ipp://localhost:631/printers/HP_LaserJet_Professional_P1102w


7. The next Debian is codenamed Jessie!
I'm only 6 days late...apparently that's the cowgirl.