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Android 4, 3, 2 creating SD card for emulator

Posted by madeeswer 1823 days ago (Editorial)

Use the following command to create a SD card for the emulator


mksdcard -l e 1G mysdcard.img


this will create a image called mysdcard.img. you can point this file in the emulator settings.

export PGDATA=/opt/PostgreSQL/9.1/data/

Error in maillog


cannot update mailbox /var/mail/vmail for user vmail. unable to create lock file /var/mail/vmail.lock: Permission denied

This might be created because of SELinux. either give permission through SELinux or disable SELinux.

In order to diable SELinux

vi /etc/selinux/config


And execute the below

In Rails 2.2 the form_for tag will be used in <% .

But in Rails 3.2 the form_for tag should be used with <%=


Error: Rails 3.2 could not find a java script run time error.

Solution:  In order to fix this error  in windows install  node-v0.8.1-x86.msi

for Linux install node.js

NOTICE:  CREATE TABLE will create implicit sequence "users_id_seq" for serial column ""
NOTICE:  CREATE TABLE / PRIMARY KEY will create implicit index "users_pkey" for table "users"

 these are all not error messages. these messages are generated by rails to tell that it has created those things.

The user has not explicitly specified these things so r

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