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Ruby, RVM, and the rubygem-rvm package

February 25, 2013, 10:45 am
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Hello all,

I am new to Ruby and its installation. I've read the info out there and decided to use RVM. I use yum to see if there is a native, packaged version of RVM in the repositories. I find "rubygems-rvm" and take it to be "RVM" (that's what the description of the package says after all).

After yum-installing this (and auto dependency installation) I go to the terminal and try to use RVM, only to be told the command doesn't exist.

Code:
man rvm
doesn't work either. The rubygems system is present, however. By default, the 1.8.7 version of Ruby was installed. I was hoping to "update" to 1.9.2 using RVM, which I thought was present after installing the rubygem-rvm rpm.

I'm using F15 btw.

Am I totally misunderstanding what the rubygem-rvm package is? :confused:

Thanks.
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Editing fstab... totally forgotten...

February 25, 2013, 11:10 am
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Right... feeling a bit special and have totally forgotten how to edit the fstab for automount...

Do I need the uuid's of the drive?

Or can I just put the following line in?

Code:
/dev/sdb1 /run/media/xxxxx/New Volume  Ntfs-3g Defaults 0 0
Ta...
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Fedora 18 Install will not recognize hard drive

February 25, 2013, 11:21 am
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I am tryin to do an install of Fedora 18 on a Core 2 Duo box. 64bit Fedora install, from an external DVD.

I can get the live Fedora 18 up an running no problem. I can see the 160 GB SATA drive from within the live system. I can fdisk the drive, and run mkfs on it all no problem.

But when I try to do the install to hard drive the instalation fails to see the drive and I get a note on th bottom o the page stating no drive found.

Very interesting, anyone have any suggestions?
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Synaptic finds broken packages, yum not

February 25, 2013, 11:40 am
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I've installed synaptic with yum, but as soon when synaptic is loaded, a message appears that there are broken packages. So if I choose broken packages, then a huge list is selected and i'm sure if I would continue that the computer could not boot anymore.

And weird, should Yum keep all depencies , or is synaptic not the tool to work with under fedora.
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Problem upgrading to F17

February 25, 2013, 1:26 pm
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My desktop was in the ICU getting a brain transplant when F16 went EOL. Now, I'm trying to get it upgraded using preupgrade one last time. Preupgrade seemed to work fine, so I rebooted into the upgrade.

Alas, the upgrade failed before it got started. First, because of cabling issues on the new mobo, one of my drives isn't connected and anaconda complained that it couldn't find a partition. Second, there's a new 120 GB SATA drive with Win2K on it that wasn't there before and isn't in fstab. (My hardware tech added it to give me room to expand, but I've not had time to play with it.) F16 ignores it, but anaconda barfs. The log left in /root contains this line:

DeviceError: ('device has not been created', '/dev/sda1')

fstab and mtab agree that /dev/sda1 is an old Windows partition on my main drive. Searching through Bugzilla suggests an issue with my swap, but that partition's listed by UUID and AFAICT it's properly mounted at that point. I know that I can shut down the box, open it up and disconnect the new drive or use GParted to nuke the partition and leave it like that for now, but I'm not sure what's best.

Also, because I wasn't thinking and ran preupgrade from ~/Desktop, there's a bunch of empty folders cluttering things up. Is there any reason not to get rid of them?
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Problems with kernel-3.8 and kernel-3.9 modesetting

February 25, 2013, 2:44 pm
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I don't know if the problem lies with the kernel's nouveau module, Xorg's nouveau driver, or both of my older onboard Nvidia graphics systems (9100 and 6150LE), but any time I try to boot a version 3.8 or 3.9 kernel, once modesetting kicks in, the signal to the monitor goes away and there's no switching to a tty. The vesa driver works, but won't cut it with my 1680x1050 monitor. Kernel versions 3.7 and earlier work fine, whereas the 3.8 and 3.9 kernels fail to properly modeset (is that a real verb?) when used on F18 and F17 systems. Anyone else seeing this?
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DisplayLink

February 25, 2013, 2:48 pm
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Hi, i have a Fedora 18 x64 and i put a DisplayLink USB 2.0 VGA, how can i configura and use it ? My DisplayLink up green light, but in monitor dont show anything.
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Kdenlive 0.9.4 with fedora 17

February 25, 2013, 5:40 pm
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Does anyone know how I can install the new version of kdenlive on fedora 17. Right now rpm fusion only has kdenlive 0.9.2 but the repo for fedora 18 has kdenlive 0.9.4 but I'd rather not upgrade to fedora 18.
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Nyah, nyah ... Ya missed me ... Nyah, nyah nyah!

February 25, 2013, 6:14 pm
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Obviously somebody over at fedora thought I wasn't paying attention ... but I was! <..:mad:..> Yumex is good for that. I suppose whatever else would be too, but in this case, Yumex did the deed, and for that I'm tickled. I've been down this road before. They did this to me several time back in F15. <..:dis:..> But not this time! I saw 'em coming.

...

They ain't gonna nail all my custom F17 graphics and artwork this time. No, sirree! I done put that package on the ignore list!

Harrumph! <....>
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Lost LUKS partition on f17

February 25, 2013, 6:43 pm
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My apologies if this is in the wrong thread, I am new here, and do hope someone can help me out. I recently purchased a new 3TB drive and connected it to my mac, and moved my 2 TB of data from my old NAS to this (was out of space on that drive). That drive, formatted in XFS, was then moved to my running Fedora 17 system that has been up for months. I ran a shred on the drive, then ran:

cryptsetup luksFormat /dev/sdd1
cryptsetup luksOpen /dev/sdd1 Book
mkfs.ext4 /dev/mapper/Book
mount /dev/mapper/Book /mnt/Book

All was well. I moved approximately 1 TB of data back to this (other ~1TB stayed on the new drive), and was running for a day or so with a virtual machine (drive mounted to the host fedora system) open. Suddenly I could no longer access my Fedora system via SSH, SMB... though I could still RDP into the running VM on it. I connected a monitor & keyboard (as it is headless), and was able to log in. Instead of looking around as I should have, I rebooted. Upon reboot the system was not able to find an operating system, likely because of the new USB disk. I changed this in the BIOS, and the system booted up. All my other drives are encrypted with LUKS, though found via UUID. This new drive appeared as /dev/sdb, rather than /dev/sdd as it previously did. The problem is now there is only a /dev/sdb, no /dev/sdb1, as they was previously a /dev/sdd1. palimpsest displays this as /dev/sdb Unknown.

There must be a way to mount and recover my data. I have room on other drives to copy the ~1TB if I need to reformat and re-encrypt, but I need to get this data back.

Any help is greatly appreciated!!
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No keyboard layout widget

February 26, 2013, 11:51 am
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Hello all.

I don't know how it's possible, but I has no keyboard layout switch widget on top panel :D I has two layouts and hotkey to switch it and it works fine. But widget ... it's gone somewhere. Can some one help me to add or install it?

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Revisiting an old e16 issue ...

February 26, 2013, 1:14 pm
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... in particular the one here, (starting at post 43) regarding getting a functional menu entry for Suspend.

As posted there, this works via the terminal:
Code:
su -
(provide password)

pm-suspend
Or, this works, too.

Code:
sudo pm-suspend
The problem comes in trying to get this to execute from a menu item. Neither one will work as a standard user, and there is no opportunity to authenticate by password, so they silently fail.

Code:
"User Menus"
"User Application List" NULL menu "user_apps.menu"
"Applications" NULL menu "menus_apps/index.menu"
"Epplets" NULL menu "epplets.menu"
"Restart" NULL "exit restart"
"Log Out" NULL "exit logout"
"Suspend" NULL "pm-suspend"


Figure 1: Menu Entry



Figure 2: Missing selection = Suspend.




Sea's solution works, but I've never been a big fan of beesu. I don't have it installed as I don't really understand all of what I know of what it's doing.

I'd just as soon have only that one command function without interference.

So that leaves me with two options. Get a clearer understanding of what beesu is doing, and how to cage it for the rest of the system, or find a way to get that command to work from the menu. (Ideally, I'd like it to pop in as an option in the resulting logout/shutdown dialogue. So, that's the bottom line question.
  • How to get that command to work normally. (ie, get the suspend option included in the shutdown dialog.)
  • If that's not possible, how to get the menu command to properly function without beesu?
  • Or, whussup with beesu, and how to pull it's fangs for anything except activating that one single command?



Simple ... no? <..:confused:..>






ONGOING-EDITING: Done.
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Fast SSD read but slow write

February 26, 2013, 3:37 pm
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Hi,

I have a SSD where my Fedora 18 is booting from. It has the speed I would expect from it. But today I wrote a little test where I write a file with 1.5 GB to my HDD and my SSD. Surprisingly most of the time it took longer to write on the SSD then on the HDD. Not very much but it is recognisable.

Any ideas where to start searching the problem? The SATA-Controller should make 6GB/s, AHCI is activated and I know that I am on the correct disk. ;)

Thanks
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Fedora 18 forgot shebangs

February 26, 2013, 4:08 pm
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Ever since I upgraded to Fedora 18, my system does not recognize shebangs. Note that these are files that worked in F17.

Is this a known issue? Is there a fix?

Thanks
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Causes of world war 1

February 26, 2013, 5:36 pm
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Hi,

Just found something that probable best summarizes the causes of world war 1. Thanks.


http://americanhistory.about.com/od/...orld-war-1.htm


Quote:
Over time, countries throughout Europe made mutual defense agreements that would pull them into battle. Thus, if one country was attacked, allied countries were bound to defend them. Before World War 1, the following alliances existed: •Russia and Serbia
•Germany and Austria-Hungary
•France and Russia
•Britain and France and Belgium
•Japan and Britain
Austria-Hungary declared war on Serbia, Russia got involved to defend Serbia. Germany seeing Russia mobilizing, declared war on Russia. France was then drawn in against Germany and Austria-Hungary. Germany attacked France through Belgium pulling Britain into war. Then Japan entered the war. Later, Italy and the United States would enter on the side of the allies
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Do I need to install LIRC seperately in Fedora 18?

February 26, 2013, 5:58 pm
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I just finished installing Fedora 18 and out of the box I noticed that it recognizes my IMON/MCE Remote control. I have had to make some changes to the rc_keymaps/imon_mce file to remap some of the keys, but it is pretty accurate.

However, when I use the remote with XBMC, I see that I sometimes get multiple presses instead of just one. For instance, if I press the down arrow once quickly, it will scroll down several lines very fast before stopping.

I've done a little searching online and have seen a lot of talk about Lirc, and the need to ensure that only Lirc is decoding the keypresses and not both Lirc and the kernel. However, from what I understand Lirc is already built into the kernel, so I am a little confused.

If I check which protocols are listening, I see only rc-6:
# cat /sys/class/rc/rc0/protocols
[rc-6]

What do I need to do to fix this problem?

Additionally, when I modify the imon_mce file, what service do I need to restart in order to reread the new file? I know I can force it using ir-keytable, but I presumed that there must be some service that loads up upon bootup.

Thanks,

Eric
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mdadm raid6 mounting issue

February 26, 2013, 6:34 pm
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Hi guys, new here, please be gentle! :>

I'm currently running cinnamon desktop over fedora 18 and have a mdadm software raid6 array in place.

My issue is that for some odd reason after reinstalling (the same os), every time I boot up, the array shows up under "Devices" as a "9.0TB Volume", which I have to then manually click on to mount after entering my password for authorisation. When I check properties it appears to mount to /run/media/<myuser>.

My /etc/fstab is as follows:

#
# /etc/fstab
# Created by anaconda on Mon Feb 25 18:50:06 2013
#
# Accessible filesystems, by reference, are maintained under '/dev/disk'
# See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info
#
/dev/mapper/fedora_faufnir--hp-root / ext4 defaults 1 1
UUID=4f212c32-17e3-4d43-9b6b-3d182aef670c / ext4 defaults 1 2
/dev/mapper/fedora_faufnir--hp-swap swap swap defaults 0 0

And /etc/mdadm.conf reads:

# mdadm.conf written out by anaconda
MAILADDR root
AUTO +imsm +1.x -all
ARRAY /dev/md/tercore metadata=1.2 UUID=f52477e1:ded036fa:95632986:dcb84e51 name=ubuntu:tercore

I double-checked the above and the last part is exactly what is returned by "$ mdadm --detail --scan".

Thus I'm a little stumped as to what I can change to have this mount automatically. On a less pressing note, would love to be able to change the name of the array but haven't been able to figure out how. :v

Thanks in advance for any help!
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Help I'm trying to resize a flash game

February 26, 2013, 7:18 pm
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I'm playing a game which uses flash and I want to shrink the game. I have tried but it just crops the game. Is this possible?
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taking an idea from z/OS

February 26, 2013, 8:58 pm
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Hi,

I'm newhere (and also partly to Linux) and would like to know if there is a tool akin to System Automation / OPC/TWS on the IBM mainframe for Linux/Fedora. By which I mean that it would ve great if I could keep track ofany running task, and do something when it finises. Ie wait for a file copy job to finish (and maybe also have the compiler finish with rc<1) orwhateve with rc=0, then shutdown. So I can start those jobs, then walk away from my pc and go grocery shopping or whatever, without my pc staying on for too long after the jobs finish.

Maybe also start cdrecord after the copy jovmb has completed with rc=0,, or basically anything (depending on the return code? EG on z/OS, rc=4 means not enough space in dataset, you could allocate a bigger dataset and retry)

Something like yhis might alreafy exist (I believe chron is similar to ba very limited OPC in that it can stastmrrm a job at a certain time, though independent of any running tasks' outcomes.)

Y
Yes, I'm very nooby, hope you won't tire of me, I'll try and be a god boy, I promise!
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Linux System Administrator Criteria

February 26, 2013, 9:13 pm
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Aside from the basic skills I will list below,
which criteria would you add as essential or necessary these days to be hired as a Linux Admin?

bash programming
configuring services
apache configuration
tcpdump
ssh / GnuPG
setting up switch/router/firewall
basic Telephone setup
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