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A Virtual Filesystem Layer implementation in the XV6 Operating System

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A Virtual Filesystem Layer implementation in the XV6 Operating System
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  Caio Araújo Neponoceno de Lima A Virtual Filesystem Layer implementation inthe XV6 Operating System Salvador - BA, Brazil2016  Caio Araújo Neponoceno de Lima A Virtual Filesystem Layer implementation in the XV6Operating System A monograph submitted to the Department of Computer Science of the Federal University of Bahia in partial fulfilment of the require- ments for the Degree of Bachelor in Computer Science.Federal University of Bahia – UFBAInstitute of MathematicsDepartment of Computer Science Advisor: Maurício Pamplona SegundoSalvador - BA, Brazil2016  Resumo Este trabalho está apresentando uma implementação de um  Virtual File System   (VFS) que permite mais de um sistema de arquivos coexistir no XV6. Como uma prova de conceito,nós também apresentamos uma implementação básica do sistema de arquivos EXT2, um dos sistemas de arquivos mais populares entre usuários Linux na década de 90. O principal objetivo deste trabalho é documentar uma fonte de conhecimento simples e prática sobre desenvolvimento de sistemas de arquivos para ambientes Unix. Com a simplicidade doXV6, esta implementação do VFS torna possível adicionar suporte a novos sistemas de arquivos para o mesmo com o mínimo de esforço. Keywords : VFS. Operating Systems. Filesystems. Unix.  Abstract This work is presenting an implementation of a Virtual Filesystem Layer (VFS) to enable more than one filesystem coexist over the XV6. As a proof of concept, we also presenta basic implementation of EXT2 filesystem, one of the most used filesystem by Linux users in 90’s years. The main objective of this work is to document a simple and practical source of knowledge about filesystem development over an Unix-like environment. With the simplicity of XV6, this VFS implementation makes possible to add new filesystems support with minimal effort. Keywords : VFS. Operating Systems. Filesystems. Unix.
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