Run Ubuntu on an iMac G5

Question

This is more of a logistic issue than actual coding, however I am hoping there is some trick I don't know about that could help me.

I need to calculate the time between 2 date/time stamps, with a catch. Example:

startDate = September 19, 2015 02:11:46 AM
endDate = October 16, 2015 08:25:27 AM
paused = [array of date/time stamps for when the ticket switches to paused]
unpaused = [array of date/time stamps for when the ticket unpauses]

So here is what I need, I need to know the elapsed time between the start and end dates, with the following exceptions:

• Time in paused should not count towards elapsed time
• Time before 7am should not count towards elapsed time
• Time after 5pm should not count towards elapsed time
• Time on weekends should not count towards elapsed time

My approach was simply to get the difference between start and end, then subtract the elapsed time from paused status. Then to subtract time for evenings and weekends. This didn't work because I ended up double dipping if it was paused on a weekend.

I am looking for a clever way to do this without having write a million if statements and step through each day in the life of this.

Any ideas would be appreciated.

Solution

I think you could try this : How do I boot the live CD on a Macbook Pro?

hold alt/opt and select cd,

alternatively, you can install refit on the imac, insert cd and boot from the refit menu

http://refit.sourceforge.net/

It might work, unless the cd is really corrupted

Comments

[Oli]

Can you check the ISO you downloaded was a) downloaded without error and b) was burnt to disk without error. The following page should help you do that: help.ubuntu.com/community/VerifyIsoHowto#Check_the_ISO

[SimplySimon]

Are you copying the iso file to the DVD, or installing it? If you are not installing it properly, you will get this error, as the boot sector will take a look at it and think that it's just a file, not an OS.

[Oli]

Yes that's a fair point. It's not enough to just copy the ISO onto a DVD as a file, you have to use something that will unpack it. See: help.ubuntu.com/community/BurningIsoHowto and ubuntu.com/download/desktop/burn-a-dvd-on-windows

[Cin316]

I burned the .iso to a DVD using Disk Utility on my newer Mac the way help.ubuntu.com/community/BurningIsoHowto says to.

[Cin316]

Anyone have any help?

[AliReza Mosajjal]

have you tried a bootable USB ?