Comments for Alchemy Computer Solutions http://alchemycs.com Transforming your web presence into the best it can be Thu, 19 Apr 2012 12:19:22 +0000 hourly 1 http://wordpress.org/?v=3.3.2 Comment on Adding a mirror to Ubuntu 9.10′s boot drive with mdadm by Billfeldhttp://alchemycs.com/2010/08/mirror-ubuntu-boot-drive/#comment-529 Billfeld Thu, 19 Apr 2012 12:19:22 +0000 http://blog.alchemy-cs.com/?p=4#comment-529 Thanks a lot for this. I finally got it to work with Ubuntu 10.04LTS.Here's how:Before doing anything with grub run: “grub-mkdevicemap” It will create the “device.map” file. Now you can change it with vi as shown.For me most of the SED doesn't work. Use vi to edit “/boot/grub/grub.cfg”. Change all “hd0,1” to “md1” and also all sda1 UUIDs to md1 UUIDs . You can get the UUIDs with “blkid” as shown. Also do so with “/etc/fstab”.Before deleting the partitions on SDA double check if md1 is mounted as your root file system (/). If not check the steps above! Check and reboot again until md1 is mounted as /!If anything is in place and you want to see the progress of your raid sync use: “watch -t -x cat /proc/mdstat”. Thanks a lot for this. I finally got it to work with Ubuntu 10.04LTS.

Here’s how:

Before doing anything with grub run: “grub-mkdevicemap”
It will create the “device.map” file. Now you can change it with vi as shown.

For me most of the SED doesn’t work. Use vi to edit “/boot/grub/grub.cfg”.
Change all “hd0,1” to “md1” and also all sda1 UUIDs to md1 UUIDs
. You can get the UUIDs with “blkid” as shown. Also do so with “/etc/fstab”.

Before deleting the partitions on SDA double check if md1 is mounted as your root file system (/). If not check the steps above! Check and reboot again until md1 is mounted as /!

If anything is in place and you want to see the progress of your raid sync use: “watch -t -x cat /proc/mdstat”.

]]> Comment on Why graphic designers don’t need to code by B.Chunghttp://alchemycs.com/2011/07/why-graphic-designers-dont-need-to-code/#comment-527 B.Chung Mon, 23 Jan 2012 18:00:47 +0000 http://alchemycs.com/?p=559#comment-527 I actually really agreed with this article. However, some people view graphic designer's responsibility is similar as a web designer/web developer. If you looking at the job posting. " we are looking for a creative graphic designer. Responsibility: design print brochure, must know html/css,php, javascript, etc...(other code)". Based on my own experience, it is true that graphic designer should stick on what are they good at. Just like as an artist, he/she good in scenery paint, doesn't mean good in portrait. I actually really agreed with this article. However, some people view graphic designer’s responsibility is similar as a web designer/web developer. If you looking at the job posting. ” we are looking for a creative graphic designer. Responsibility: design print brochure, must know html/css,php, javascript, etc…(other code)”. Based on my own experience, it is true that graphic designer should stick on what are they good at. Just like as an artist, he/she good in scenery paint, doesn’t mean good in portrait.

]]> Comment on Mac OS X Lion, Terminal and ssh: how to start ssh-agent at login by Taylor Carpenterhttp://alchemycs.com/2011/08/mac-os-x-lion-terminal-and-ssh-how-to-start-ssh-agent-at-login/#comment-525 Taylor Carpenter Tue, 13 Dec 2011 22:27:53 +0000 http://alchemycs.com/?p=610#comment-525 port or brew install proctools then you can use pgrep[[ -z "`pgrep ssh-agent` ]] && ssh-agent port or brew install proctools then you can use pgrep

[[ -z "`pgrep ssh-agent` ]] && ssh-agent

]]> Comment on Mac OS X Lion, Terminal and ssh: how to start ssh-agent at login by Daniel Nelsonhttp://alchemycs.com/2011/08/mac-os-x-lion-terminal-and-ssh-how-to-start-ssh-agent-at-login/#comment-426 Daniel Nelson Thu, 27 Oct 2011 23:35:38 +0000 http://alchemycs.com/?p=610#comment-426 Or, save an exec() and put this in instead:if [ "x`ps ax |grep [s]sh-agent`" == "x" ]; then ssh-agent; fi Or, save an exec() and put this in instead:

if [ "x`ps ax |grep [s]sh-agent`” == “x” ]; then ssh-agent; fi

]]> Comment on Different layouts on different pages in ComicPress by Calidrohttp://alchemycs.com/2011/08/different-layouts-on-different-pages-in-comicpress/#comment-421 Calidro Wed, 26 Oct 2011 03:51:25 +0000 http://alchemycs.com/?p=646#comment-421 I use a piece of your code to change the background of the header, not the logo of the header but according with the page change the dive and consequently change the call in the css. -------------------------------------------------------- <code> <?php if (is_page_template('holistica.php')) { ?> <div class="header-holistica clear"> <?php ; } elseif (is_page_template('luz.php')) { ?> <div class="header-luz clear"> <?php ; } elseif (is_page_template('creatividad.php')) { ?> <div class="header-creatividad clear"> <?php ; } else { ?> <div class="header clear"> <?php ; } ?> </code> ------------------------Thank you, you save my day! I use a piece of your code to change the background of the header, not the logo of the header but according with the page change the dive and consequently change the call in the css.
——————————————————–

<?php
                if (is_page_template('holistica.php')) { ?>
                        <div class="header-holistica clear"> <?php ;
                }
                elseif (is_page_template('luz.php')) { ?>
                                <div class="header-luz clear"> <?php ;
                }
                elseif (is_page_template('creatividad.php')) { ?>
                        <div class="header-creatividad clear"> <?php ;
                }
                else { ?>
                        <div class="header clear"> <?php ;
                }
        ?>

————————

Thank you, you save my day!

]]> Comment on Mac OS X Lion, Terminal and ssh: how to start ssh-agent at login by Tachuhttp://alchemycs.com/2011/08/mac-os-x-lion-terminal-and-ssh-how-to-start-ssh-agent-at-login/#comment-400 Tachu Tue, 11 Oct 2011 01:23:14 +0000 http://alchemycs.com/?p=610#comment-400 you could also put this in your .bash_profileif [ "x`ps ax |grep ssh-agent |grep -v grep`" == "x" ]; then ssh-agent; fi you could also put this in your .bash_profile

if [ "x`ps ax |grep ssh-agent |grep -v grep`" == "x" ]; then ssh-agent; fi

]]> Comment on Mac OS X Lion, Terminal and ssh: how to start ssh-agent at login by wrdieterhttp://alchemycs.com/2011/08/mac-os-x-lion-terminal-and-ssh-how-to-start-ssh-agent-at-login/#comment-388 wrdieter Thu, 29 Sep 2011 19:17:18 +0000 http://alchemycs.com/?p=610#comment-388 You might try adding this to your ${HOME}/.profile:<code> # Start ssh-agent if it is not already running and set up ssh-agent variables if [ "x" == "x`ps -x -u ${USER} | egrep [s]sh-agent`" ] ; then # no ssh-agent running" ssh-agent | sed -e "/^echo/d" > ${HOME}/bin/agent-env fi source ${HOME}/bin/agent-env </code>You will still have to ssh-add your keys manually, or try you ssh-add calls to ssh-add within the if statement (not sure what it would do about the passwords).This code assumes you have a ${HOME}/bin directory that you can write to. You could just as easily dump the agent-env file in /tmp...Bill. You might try adding this to your ${HOME}/.profile:


# Start ssh-agent if it is not already running and set up ssh-agent variables
if [ "x" == "x`ps -x -u ${USER} | egrep [s]sh-agent`" ] ; then 
  # no ssh-agent running"
  ssh-agent | sed -e "/^echo/d" > ${HOME}/bin/agent-env
fi
source ${HOME}/bin/agent-env

You will still have to ssh-add your keys manually, or try you ssh-add calls to ssh-add within the if statement (not sure what it would do about the passwords).

This code assumes you have a ${HOME}/bin directory that you can write to. You could just as easily dump the agent-env file in /tmp…

Bill.

]]> Comment on shell scripting pitfall: string/number conversions by Tonyhttp://alchemycs.com/2011/07/shell-scripting-pitfall-stringnumber-conversions/#comment-376 Tony Thu, 15 Sep 2011 15:44:01 +0000 http://alchemycs.com/?p=617#comment-376 it is very useful, helps me a lot...normal books does not really write these tricks it is very useful, helps me a lot…normal books does not really write these tricks

]]> Comment on Mac OS X Lion, Terminal and ssh: how to start ssh-agent at login by Christiam Tismerhttp://alchemycs.com/2011/08/mac-os-x-lion-terminal-and-ssh-how-to-start-ssh-agent-at-login/#comment-375 Christiam Tismer Wed, 14 Sep 2011 13:48:15 +0000 http://alchemycs.com/?p=610#comment-375 With the 10.7.2 beta things have changed again. The trick with the startup item does no longer work. This seems to be a timing problem. The work-around is not nice but rather painless: After a reboot, quit and restart terminal.app. With the 10.7.2 beta things have changed again.
The trick with the startup item does no longer work.
This seems to be a timing problem.
The work-around is not nice but rather painless:
After a reboot, quit and restart terminal.app.

]]> Comment on Mac OS X Lion, Terminal and ssh: how to start ssh-agent at login by derekhttp://alchemycs.com/2011/08/mac-os-x-lion-terminal-and-ssh-how-to-start-ssh-agent-at-login/#comment-365 derek Tue, 23 Aug 2011 22:14:24 +0000 http://alchemycs.com/?p=610#comment-365 I always wondered why Lion would sometimes prompt me for my passphrase even though I have my ssh-agent set up from my Leopard days. Good to know why!Incidentally, you can just do Command-Shift-G in the file dialog to go to /usr/bin. It eliminates the need to create a temporary symbolic link to ssh-agent in your home directory. I always wondered why Lion would sometimes prompt me for my passphrase even though I have my ssh-agent set up from my Leopard days. Good to know why!

Incidentally, you can just do Command-Shift-G in the file dialog to go to /usr/bin. It eliminates the need to create a temporary symbolic link to ssh-agent in your home directory.

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