Trouble installing EMC2 on Ubuntu 8.04

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dman86
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31 Mar 2009 20:28 #29 by dman86

Trouble installing EMC2 on Ubuntu 8.04 was created by dman86

I'm a professional machinist. I was pretty excited to find EMC2, and was pretty excited to be installing it in Ubuntu. Then I'd have some software to use at work on my Dell mini netbook. I followed the instructions for using the install script exactly. The script launched, I put in my password, it didn't ask me if I was sure I wanted to install, it just went ahead and and did it and filled the terminal window with a bunch of Linux gobbledy-guk, and when it apparently finished, the window automatically closed. I restarted, but EMC2 is nowhere to be found in my menu.

But I do know that it must have installed half of itself or something, because thereafter, whenever I launch the Add/Remove software application, it checks for updates and I get this extremely annoying message:

Failed to fetch www.linuxcnc.org/hardy/dists/hardy/Release Unable to find expected entry base/binary-lpia/Packages in Meta-index file (malformed Release file?)
Some index files failed to download, they have been ignored, or old ones used instead.

It's meaningless to me. I'm pretty frustrated. I'm not a Linux veteran. I've been machining for a long while but I'm a complete newbie when it comes to Linux.

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alex_joni
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31 Mar 2009 21:49 - 31 Mar 2009 21:51 #30 by alex_joni

Replied by alex_joni on topic Re:Trouble installing EMC2 on Ubuntu 8.04

Hi,

unfortunately your Dell mini comes with the flavor of -lpia (LPIA Low Power on Intel Architecture). A flavor is a special way of optimizing certain packages for certain hardware (i386 - the most used flavor is the default one, that runs on almost any Intel/AMD processors, amd64 - runs on 64-bit machines, etc).
There are no emc2 packages (kernel or emc2) for the flavor/architecture that is installed on your Dell Mini.
The update warning you're seeing is saying just that..
If you want to get rid of the warning open Synaptic Package Manager, and under repositories, look for linuxcnc repositories, which you can turn off.
It shouldn't bother you again.

If you want to install emc2, the simplest is either start from a stock 8.04 Ubuntu install (i386 install) then follow the same instructions you did. This probably won't work on the Dell mini.
We also have a LiveCD which you can burn, and try on any PC with a CDROM drive.

Regards,
Alex

Last edit: 31 Mar 2009 21:51 by alex_joni. Reason: more explaining

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dman86
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31 Mar 2009 23:04 #31 by dman86

Replied by dman86 on topic Re:Trouble installing EMC2 on Ubuntu 8.04

Bummer! Well, I tried what you suggested to get rid of that warning, but I did not find any repositories named linuxcnc. So, I'm still getting the message. Is there another possible way to delete what may have been installed?

I like the idea of a liveCD, but my netbook doesn't have a CD drive, and carrying an external one to work would somewhat defeat the purpose of a netbook. Is it possible to make the liveCD bootable on a USB flash drive?

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BigJohnT
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01 Apr 2009 00:09 - 01 Apr 2009 11:52 #32 by BigJohnT

Replied by BigJohnT on topic Re:Trouble installing EMC2 on Ubuntu 8.04

Welcome to EMC.

I have a small machine shop/fabrication/integration... business. So the more machinest the better

The repository should be in Settings/Third-Party Software www.linuxcnc.org/hardy from your Synaptic Package Manager on 8.04.

This is a link for getting the live CD.

www.linuxcnc.org/docview/html//common_Getting_EMC.html

Most laptops and special computers are not good canidates for real time CNC control. You can use the live CD to test a canidate computer without loading it. For the special cases thank goodness Alex to chimed in.

I remember some discussion on putting the LiveCD on a usb stick but don't remember the outcome... Perhaps someone can chime in on this.

John

Last edit: 01 Apr 2009 11:52 by BigJohnT.

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WildRice
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06 Apr 2009 00:26 #53 by WildRice

Replied by WildRice on topic Re:Trouble installing EMC2 on Ubuntu 8.04

It appears that I got off in the woods. I updated Dapper to Hardy. That seemed to work well. But when I attempted to run the Hardy ./emc2-install.sh that I downloaded. It reads a bunch of package lists, then tells me that the pacage emc2 is not available, but there is a package that replaces it called emc2. Then it tells me that there is no installation candidate.

Started up synaptic. When I look at settings>Third-Party, I did not see any Hardy entries. Only Dapper. so I added the repository names from the script using synaptic. Did a reload. I hope I did not make things worse.

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WildRice
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06 Apr 2009 01:37 #54 by WildRice

Replied by WildRice on topic Re:Trouble installing EMC2 on Ubuntu 8.04

Continuing with my story from my previous post, Putting the correct repositories in with synaptic did work, but after rebooting, the realtime stuff failed with an error. (Sorry, I failed to keep a copy of the error). Since I was hosed, I went for broke and followed the instructions to upgrade to 2.3. That went well and after another reboot I got a dialog box saying that hal could not start, but I started axis anyway and it worked. The steppers (Sherline) sound smoother, but that may be my imagination. I have not made any chips yet, but the spindle is flying.

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