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Re: SD card robustness?

peter green <peter.green@postgrad.manchester.ac.uk> writes:

> I run debian on my beagleboard with the root filesystem on a SD
> card. Specifically a "sandisk for Wii" 2GB card. Recently the area surrounding
> the start of the ext3 root partition went bad nuking the superblock and thereby
> rendering the system unbootable.
> I managed to clone the card with gnu ddrescue and repair the filesystem using an
> alternate superblock so afaict I didn't really lose anything and I've replaced
> it with a sandisk 4GB SDHC card so the system is back up.
> However i'm worried it might happen again. Has anyone else seen similar issues
> running linux with root on SD card. Should I be buying something special and/or
> using a different filesystem? SD cards are supposed to have built in wear
> leveling right?


Maybe you already know this article, but it's definitely worth reading
Arnd article at LWN about flash drives:


Luis Henriques

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