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Archive for the ‘OSX’ Category

Moving or copying files from one Google drive account to another

July 20th, 2016 No comments

I have seen questions on the web about how to migrate (copy/move) files from one GDrive account to another. There are many reasons, such as migrating from one Google account (such as company) to your personal account, etc.

WARNING: you may be violating your company policy by moving/copying files from your company Google account to a personal. I advise you to consult your company security officer or equivalent before doing this.

There are other reasons for wanting to copy or moving large number of files from one GDrive to another. Such as for me. I shared a folder in my GDrive with my family for putting our family photos in a central location. My family have G account, and there own GDrive. It seem that Google make it painful to copy files from one GDrive to another. Their suggestions is some form of downloading the files to your local drive first, and then uploading it to the other GDrive that you want.

This is painful!!! There are so many reasons why it’s painful…. 😉

The solution I’ve used is to install Google Drive app (supports OSX, Windows, Linux, Android and IOS).

Link Google Drive app to one Google account, and now you can treat the files in it as on your local drive and drag from there to the GDrive account you want to copy to.

Errors while installing unicorn gem on OS X

February 2nd, 2012 No comments

I was updating my bundle for a rails 3.1 app, when I run into the following errors.

Installing unicorn (4.2.0) with native extensions
Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension.

/opt/local/bin/ruby1.9 extconf.rb
checking for SIZEOF_OFF_T in ruby.h... *** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of
necessary libraries and/or headers. Check the mkmf.log file for more
details. You may need configuration options.

Provided configuration options:
--with-opt-dir
--with-opt-include
--without-opt-include=${opt-dir}/include
--with-opt-lib
--without-opt-lib=${opt-dir}/lib
--with-make-prog
--without-make-prog
--srcdir=.
--curdir
--ruby=/opt/local/bin/ruby1.9
/opt/local/lib/ruby1.9/1.9.1/mkmf.rb:381:in `try_do': The compiler failed to generate an executable file. (RuntimeError)
You have to install development tools first.
from /opt/local/lib/ruby1.9/1.9.1/mkmf.rb:491:in `block in try_compile'
from /opt/local/lib/ruby1.9/1.9.1/mkmf.rb:443:in `with_werror'
from /opt/local/lib/ruby1.9/1.9.1/mkmf.rb:491:in `try_compile'
from /opt/local/lib/ruby1.9/1.9.1/mkmf.rb:686:in `macro_defined?'
from /opt/local/lib/ruby1.9/1.9.1/mkmf.rb:822:in `block in have_macro'
from /opt/local/lib/ruby1.9/1.9.1/mkmf.rb:790:in `block in checking_for'
from /opt/local/lib/ruby1.9/1.9.1/mkmf.rb:284:in `block (2 levels) in postpone'
from /opt/local/lib/ruby1.9/1.9.1/mkmf.rb:254:in `open'
from /opt/local/lib/ruby1.9/1.9.1/mkmf.rb:284:in `block in postpone'
from /opt/local/lib/ruby1.9/1.9.1/mkmf.rb:254:in `open'
from /opt/local/lib/ruby1.9/1.9.1/mkmf.rb:280:in `postpone'
from /opt/local/lib/ruby1.9/1.9.1/mkmf.rb:789:in `checking_for'
from /opt/local/lib/ruby1.9/1.9.1/mkmf.rb:821:in `have_macro'
from extconf.rb:4:in `

'

Gem files will remain installed in /Users/tin/.bundler/tmp/34826/gems/unicorn-4.2.0 for inspection.
Results logged to /Users/tin/.bundler/tmp/34826/gems/unicorn-4.2.0/ext/unicorn_http/gem_make.out
An error occured while installing unicorn (4.2.0), and Bundler cannot continue.
Make sure that `gem install unicorn -v '4.2.0'` succeeds before bundling.

And the mkmf.log contain this, which was the clue I needed.

"/usr/bin/gcc-4.2 -o conftest -I/opt/local/include/ruby-1.9.1/x86_64-darwin10 -I/opt/local/include/ruby-1.9.1/ruby/backward -I/opt/local/include/ruby-1.9.1 -I. -I/opt/local/include -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -I/opt/local/include -pipe -O2 -arch x86_64 -fno-common conftest.c -L. -L/opt/local/lib -L/opt/local/lib -L. -L/opt/local/lib -arch x86_64 -L/usr/local/lib -lruby.1.9.1 -lpthread -ldl -lobjc "
i686-apple-darwin10-gcc-4.2.1: vfork: Operation timed out
checked program was:
/* begin */
1: #include "ruby.h"
2:
3: int main() {return 0;}
/* end */

Notice the vfork: Operation timed out line? It turns out that I was running out of system resources (VM) and gcc can’t fork. Ah, my poor 8GB i7 laptop…. 🙂

Fix was simple, I shutdown Firefox and Chrome w/their gadzillion windows and tabs opened. Then retried “bundle update” again, and voila!

Documenting it here in case other people run into similar problem.

Categories: OSX, Ruby, SW Dev, Tech Tags: , , , ,

Using any NAS as Time Machine

September 2nd, 2011 No comments

Yes, there are many posts on the web about this.  All the one my google-fu found has manual steps to set one up.  As an engineer, I like to automate things, why do the same steps over and over when you can write a script to package it all up for you?

So here is a shell script to setup sparsebundle ready for you to copy to your NAS and begin using as your Time Machine backup.  Save it to a file, I called mine: create-TimeMachine-bundle.sh.

Then run it with the size that you want to create for your backup.

E.g.  create-TimeMachine-bundle.sh 500g

will create a sparsebundle with size of 500GB.


#!/bin/bash

###################################################################################
# NOTE: even if you connect over WLAN, you MUST use en0 (ethernet) MAC address for
# TimeMachine sparsebundle!!!!

INTERFACE=en0
MACHINENAME=`uname -n | cut -d '.' -f 1,1`

if [ $# -lt 1 ]
then
echo "Usage: $0 SIZE"
echo " Where SIZE is total size (k|m|g|t) allowed for TimeMachine backup usage on NAS."
exit 1
fi
SIZE=$1

MAC_ADDRESS=`ifconfig ${INTERFACE}|grep 'ether '|awk '{print $2;}'|sed 's/://g'`

hdiutil create -verbose -type SPARSEBUNDLE -size $SIZE -fs "Case-sensitive Journaled HFS+" -nospotlight -imagekey sparse-band-size=262144 -volname "${MACHINENAME} Backups" ${MACHINENAME}_${MAC_ADDRESS}

defaults write com.apple.systempreferences TMShowUnsupportedNetworkVolumes 1

Categories: OSX, Tech Tags: , ,