Hi Peter.
First of all - thank you for contacting us.
Please, what device we will talk about? and what linux distribution do you use?
1. Yes, SDK is ready.
The greyed option means, that for selected MCU is not this KSDK version supported.
For example, in this case I selected MCU KM34Z256xxx7. But at the moment this MCU is supported only in SDK 1.3, not in SDK 2.0.

The list of supported devices
for KSDK 1.3
for KSDK 2.0
- you will find at C:\Freescale\<SDK2.0_package_MCU>\docs\Kinetis SDK v.2.0.0 Release Notes.pdf
for coming KSDK releases
2. No. It is not necessary to install previous KSDK versions.
3. For installing KSDK please see my procedure describes here How to: install KSDK 2.0
For installing Kinetis Design Studio (IDE), please see the KDS User Guide p.6
To install the Kinetis Design Studio software development tools on a Linux system, use
the following package files.
• .rpm — Use .rpm to install KDS software tools on systems using the RPM package
manager. For example, Red Hat and CentOS.
• .deb — Use .deb to install KDS software tools on systems that use the Debian
package manager. For example, Ubuntu.
installing with Red Hat package manager (RPM)
To install the Kinetis Design Studio software development tools on an Linux Standard
Base (LSB)-compliant system, use the .rpm package file.
$ sudo rpm -Uvh kinetis-design-studio-3.0.0-1.x86_64.rpm
Preparing ... ########################################### [100%]
1: Kinetis Design Studio ########################################### [100%]
This will install the Kinetis Design Studio software development tools to the default
location (/opt/Freescale/KDS_3.0.0).
Installing with Debian package manager (DEB).
To install the Kinetis Design Studio software development tools on Debian-like systems,
including Ubuntu, use the .deb package file.
$ sudo dpkg -i kinetis-design-studio_3.0.0-1_amd64.deb
(Reading database ... .... files and directories currently installed .)
Preparing to replace kinetis-design-studio 3.0.0 (using kinetis-designstudio_
3.0.0-1_amd64 .deb) ...
Unpacking replacement kinetis-design-studio ...
Setting up kinetis-design-studio (3.0.0) ...
This installs the Kinetis Design Studio software development tools to the default location
(/opt/Freescale/KDS_3.0.0).
I hope this helps you.
Please let me know in case of other questions.
Best Regards,
Iva