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[all variants] Run Ubuntu from RAM

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linux-howto

http://ubuntuforums.org – Hi, I'm currently building a PC which will be used mainly as a NAS/Media Server running 24/7 and I don't want Ubuntu to prevent my hard drive from spinning down when it's not used. Would this be possible: Install Ubuntu onto a software raid1 consisting of 1 hard drive partition. After booting add a ramdisk to that raid, wait until the data is replicated and remove the partition. Before shutting down the data could be replicated back to hdd in the same way. And is it possible to boot after a power failure, since the hard drive wouldn't be part of the raid at that time. Could I add the hdd to the raid using a live cd? Thanks in advance. (Hardware)