Method for loading an operating system

G - Physics – 06 – F

Patent

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G06F 9/445 (2006.01)

Patent

CA 2232441

The invention concerns a method for loading an operation system applied to a data processing unit comprising a power supply with power reserve, a microprocessor, an erasable Flash EPROM type memory; a saved RAM memory; a device for sensing mains cut-offs, a linking console or a mass memory for updating the operating system. It is characterised in that during updating, the operating system transfers the bootstrap programme into the saved RAM, then executes this bootstrap programme stored in the RAM, this RAM stored bootstrap programme erasing the Flash EPROM then loading, from the linking console or from the mass memory, the new operating system in the Flash EPROM.

Procédé de chargement de système d'exploitation appliqué à un appareil de traitement de l'information comportant une alimentation avec réserve d'énergie, un microprocesseur, une mémoire de type Flash Eprom effaçable; une mémoire RAM sauvegardée; un dispositif de détection des coupures secteur; une liaison console ou une mémoire de masse pour la mise à jour du système d'exploitation et il est caractérisé par le fait que lors d'une mise à jour, le système d'exploitation transfère le programme d'amorce dans la RAM sauvegardée, puis exécute ce programme d'amorce stocké dans la RAM, ce programme d'amorce stocké en RAM effaçant la mémoire Flash Eprom puis chargeant, à partir de la liaison console ou de la mémoire de masse, le nouveau système d'exploitation dans la mémoire Flash Eprom.

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