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New-StartOS Logo.png
StartOS 5.0
Developer YLMF
OS family Unix-like
Working state Current
Source model Open source
Latest release 6.0 (beta) [1] / 4 July 2013; 5 years ago (2013-07-04)
Latest preview 6.0 beta[2] / 27 March 2012; 6 years ago (2012-03-27)
Available in Chinese and English
Package manager Self-made YKPG
Kernel type Monolithic (Linux)
Userland GNU
Default user interface GNOME
Official website

StartOS (formerly Ylmf OS) is a Chinese Linux distribution. StartOS is an operating system which is free and open-source software. In the beginning it was based on Ubuntu,[3] but starting from version 4.0 it adopted custom package management (called YPK) and system installer, though the underlying live medium is still built using Ubuntu's Casper tool.[4] [5] Its user interface closely resembles that of Microsoft Windows XP.[6] The distribution was originally not available in the English language, though shortly after the initial release in late 2009[7] an English-language version of Ylmf OS was released.[8]

Despite the very similar likeness to Windows XP's Luna theme—the default theme for Windows XP—Microsoft does not appear to be planning to take any sort of action against the operating system or its developers.[6][9]

Ylmf OS 4.0 looks similar to Windows Vista, but also has a Mac OS X cursor scheme.


  • 1.0 (based on Fedora 11)
  • 1.15 (based on Ubuntu 9.04)
  • 1.5 (based on Ubuntu 9.10)
  • 2.0 (based on Ubuntu 9.10)
  • 3.0 (based on Ubuntu 10.04 LTS)
  • 4.0 (based on Xiange Linux, not available on the English website, but can be installed in English)
  • 5.0 (beta, now called "StartOS")
  • 5.1 (2013, based on Ubuntu 14.04 LTS ?)
  • 6.0 (2013, beta)


See also[edit]


  1. ^ YLMF Website (in Chinese)
  2. ^ YLMF Forum
  3. ^ 「Ylmf OS - YlmF Operating System」. Retrieved 2010-01-20.
  4. ^ StartOS at StartOS. Retrieved 2012-12-13.
  5. ^ 「Ylmf OS looks so much like XP! - Ubuntu masquerading as XP」. Retrieved 2010-01-20.
  6. ^ 「Infamous Chinese pirates launch Ubuntu that looks just like Windows XP」. Retrieved 2010-01-20.
  7. ^ 「Ylmf OS now available in English」. Retrieved 2010-01-20.

External links[edit]

Media related to StartOS at Wikimedia Commons