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Ubuntu, VirtualBox 2.2 and USB

Hello,

Now, with this new version of ubuntu, i will post alot about it while I’m trying configurations. I don’t want to teach how to install VirtualBox 2.2, because it’s a package .deb and is so easy to install it (Download Sun VirtualBox). In this post I want to remember that we should select the option “Enable IO APIC” in “Settings – General – Advanced”. (My version of WinXp doesn’t work without it). So if you system is not booting, verify this option. Now let’s go to enable USB in your Virtual machine.

You have to install “Guest Additions”, use the menu “Devices – Install Guest Additions”. (Don’t forget to mount it on your cd in virtualbox)

After you install it go to console:

$ grep vbox /etc/group
The result is something similar to this: vboxusers:x:gid:user

(If your user is not there, add it “System – Administration – Users and groups”)

Edit the file “mountkernfs.sh”:
$ sudo pico /etc/init.d/mountkernfs.sh

Go to the end of do_start(), and before the } add this line:
domount usbfs “” /proc/bus/usb usbdevfs -onoexec,nosuid,nodev,devgid=GID,devmode=644

(Replace the GID with your GID)

Save the file, reboot the computer and use your usb in your virtualmachine.

The site that make me try this way is http://www.davidgrant.ca/virtualbox_usb_windows_xp_guest_ubuntu_hardy. This website don’t says it works on Ubuntu 9.04 (Jaunty), so i tried and it worked.

I hope this is useful,
Matheus

PS: You have to select the device you want to use in virtual machine in “Device – USB DEVICES”

Published inAprendendoLinuxSoftware LivreUbuntu

39,018 Comments

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  3. Right — have been messing about with this thing for maybe a few months now and it’s basically bookmarked at this point, so thought I’d chuck my thoughts in since a mate asked me the other day. Am in the UK, mainly bet football and racing, a fiver here and there, just so you know where I’m coming from.

    How I found it was actually a bit daft — I never could figure out what an each way payout actually came to with 1/5 odds a place. I’d just guess and moan when the payout landed. These days I type the odds in before every slip, even a simple single bet.

    Their single bet calculator is the bit I open most — you drop in stake and odds and you get returns instantly, fractions or decimals. It also handles the multiples — doubles and trebles maths, a lucky 15, yankees, honestly that’s where I always mess it up. Have a go yourself, it’s over at betting accumulator calculator and it’s free with no account nonsense.

    One thing that really made a difference were the more serious bits. They’ve got an implied probability calculator and it makes obvious the overround, and a kelly staking tool — I use half kelly as the full version is a quick route to a dead bankroll. Dutching calculator is handy too if I’m covering two or three runners.

    It’s not perfect mind. The interface looks very functional, let’s say — zero polish, looks like it was built by someone who cares more about maths than colours. Phone-wise it works though the bigger tables need a bit of scrolling. And no proper app, it’s a website and that’s it — fine by me but worth saying.

    Right, that’s me. Costs nowt, barely any ads, does what it says. If anyone still works out returns on a calculator app, give it a go — saved me a load of dumb bets I’d have regretted.

  4. Right — been on this thing for maybe four months now and I keep coming back, so thought I’d chuck my thoughts in since a lad on another thread asked me the other day. Am UK based, generally stick to footie and the horses, a fiver here and there, for context.

    The reason I started using it was honestly pretty stupid — I never could work out what an ew return actually was once you get five places instead of three. I’d just guess and moan when the payout landed. Now I stick my stake in before every slip, even a simple single bet.

    The single bet calculator tool is the one I open most — you put in stake and odds and it shows the return straight away, fractions or decimals. It also handles the multiples — trebles maths, lucky 15s, a yankee, which is where most people I know lose track. Have a go yourself, it’s here implied probability betting odds and it’s free with no account nonsense.

    One thing that actually made a difference is the geekier extras. They’ve got an odds-to-probability thing which shows you how much the bookie’s taking, plus a kelly staking tool — I use half kelly as the full version is terrifying. Dutching calculator is decent if I’m spreading across selections.

    It’s not perfect mind. The interface is a bit basic — zero polish, it’s clearly function over form. Phone-wise it’s usable though the acca grid make you pinch and zoom. Also there’s nothing on the app store, it’s a website and that’s it — doesn’t bother me just flagging it.

    So yeah. Doesn’t cost anything, barely any ads, does what it says. Anyone who even now works out returns on a calculator app, try it — saved me a load of “wait, that’s it?” moments.

  5. Right — have been messing about with this thing for something like a few months now and it’s stuck on my phone, so figured I’d write something up since someone asked me the other day. I’m UK based, mainly do football and horses, a fiver here and there, for context.

    What got me on it was genuinely embarrassing — I couldn’t ever work out what an ew return would be once you get five places instead of three. I used to just wing it and moan when the payout landed. Now stick my stake in first, every time, even the boring singles.

    The single bet calculator tool is the part I’m on daily — you put in the price and your stake and it spits out returns with no faffing, fractions or decimals. Same tool covers the fiddly ones — trebles returns, lucky 15s, yankees, honestly that’s where I’d always mess it up. If you fancy a poke about, it’s here yankee bet calculator and there’s no login wall, which I appreciated.

    What genuinely changed how I bet were the geekier bits. They’ve got an odds-to-probability converter which shows you what margin’s baked in, and there’s the kelly tool — I use half kelly since full stakes are a quick route to a dead bankroll. The dutch tool is handy too if I’m covering two or three runners.

    Not all sunshine though. The design is very functional, let’s say — not much polish, which honestly I don’t mind but some will. On mobile it works although the acca grid need a bit of scrolling. Also there’s no proper app, it’s a website and that’s it — slight shame but you asked.

    Anyway. Free, not plastered in adverts, works. If anyone still adds it up in their head, have a look — saved me a load of “wait, that’s it?” moments.

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  13. So — have been messing about with this thing for about six months now and it’s stuck on my phone, reckon I’d say something since a mate asked me a few days back. Am UK based, mainly do football and horses, small stakes, so take it how you like.

    The reason I started using it was actually a bit daft — I couldn’t ever work out what an each way return would be once you get five places instead of three. I used to just guess and then be surprised. Now I type the odds in first, every time, even a straight one-selection punt.

    The single bet calculator tool is the part I’m on daily — you drop in the price and your stake and you get profit and total return instantly, fractions or decimals. Same tool covers the multiples — trebles maths, lucky 15s, a yankee, which is where I always got it wrong. If you fancy a poke about, it’s over at free dutching calculator and it’s free with no account nonsense.

    One thing that actually made a difference were the nerdier bits. There’s an implied probability converter which shows you how much the bookie’s taking, and a kelly criterion calculator — I run quarter kelly since full stakes are far too aggressive. Dutching calculator is decent when I’m covering two or three runners.

    Not all sunshine though. Its design is a bit basic — not much polish, it’s clearly function over form. Phone-wise it’s usable though the lucky 63 breakdown make you pinch and zoom. And no proper app, it’s a website and that’s it — slight shame but you asked.

    Anyway. Doesn’t cost anything, barely any ads, works. If anyone honestly does the maths on paper, have a look — saves me a fair few arguments with the bookie.

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  16. Right — been on this thing for something like six months now and it’s stuck on my phone, so figured I’d write something up since a lad on another thread asked me a few days back. Am based in the UK, mostly bet football and racing, small stakes, so take it how you like.

    How I found it was honestly pretty stupid — I never could figure out what an e/w payout actually came to once you get five places instead of three. I used to just eyeball it and get a shock. Now punch the numbers in first, every time, even a straight one-selection punt.

    The single bet calculator tool is the bit I open most — you drop in stake and odds and it shows the return straight away, fractions or decimals. It also handles the fiddly ones — trebles returns, lucky 15 and lucky 63, a yankee, honestly that’s where I’d always lose track. Have a go yourself, it’s over at gambling odds converter and it’s free with no account nonsense.

    The thing that genuinely shifted things for me is the geekier bits. They’ve got an probability thing that shows what margin’s baked in, and there’s the kelly criterion calculator — I stick to fractional kelly because full kelly is far too aggressive. The dutch tool is decent for when I’m covering two or three runners.

    Couple of gripes. Its design looks pretty plain — not much frills, looks like it was built by someone who cares more about maths than colours. On mobile it’s usable but the acca grid make you pinch and zoom. There’s nothing on the app store, it’s a website and that’s it — fine by me just flagging it.

    Anyway. Free, no ads shoved in your face, does what it says. If you honestly works out returns on a calculator app, give it a go — it’s saved me a load of arguments with the bookie.

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  20. So — been on this thing for something like a few months now and it’s stuck on my phone, so thought I’d chuck my thoughts in since a lad on another thread asked me a few days back. I’m in the UK, generally do football and horses, nothing mad, so take it how you like.

    What got me on it was actually embarrassing — I could never work out what an ew return would be with 1/5 odds a place. I used to just wing it and then be surprised. These days I stick my stake in before every slip, even a simple single bet.

    Their single bet calculator tool is the bit I use most — type in stake and odds and it spits out returns instantly, fractional or decimal, doesn’t matter. Same tool covers the bigger stuff — acca and treble returns, lucky 15s, yankees, honestly that’s where most people I know mess it up. If you want a look, it lives at lucky 15 free bet calculator and it’s free with no account nonsense.

    The thing that really changed how I bet is the geekier tools. They’ve got an probability thing and it makes obvious how much the bookie’s taking, and there’s the kelly tool — I run quarter kelly as the full version is far too aggressive. The dutching one is handy too if I’m spreading across selections.

    Not all sunshine though. Its interface is pretty plain — zero polish, which honestly I don’t mind but some will. On my phone it’s usable although the lucky 63 breakdown need a bit of scrolling. There’s no proper app, it’s a website and that’s it — fine by me but you asked.

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    What got me on it was honestly a bit daft — I could never figure out what an each way payout would be with 1/5 odds a place. I used to just wing it and moan when the payout landed. Now stick my stake in before every slip, even the boring singles.

    Their single bet calculator is the bit I use most — you drop in the price and your stake and it shows the return straight away, either odds format. It also handles the fiddly ones — doubles and trebles returns, lucky 15 and lucky 63, patents and yankees, and that’s where I always mess it up. Have a go yourself, it’s over at double bet and there’s no login wall, which I appreciated.

    The thing that actually shifted things for me was the more serious bits. The odds-to-probability converter which shows you how much the bookie’s taking, plus a kelly tool — I use half kelly as the full version is terrifying. Dutching calculator is decent for when I’m splitting a race.

    It’s not perfect mind. Its interface feels pretty plain — no flash, looks like it was built by someone who cares more about maths than colours. On my phone it’s fine although the acca grid are a squeeze. And no proper app, just the site — slight shame but you asked.

    Right, that’s me. Free, not plastered in adverts, does what it says. Anyone who even now works out returns on a calculator app, give it a go — saved me a load of “wait, that’s it?” moments.

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