Tag Archives: flash

mkenvimage: a tool to generate a U-Boot environment binary image

Posted on December 5, 2011 by Thomas Petazzoni

Many embedded devices these days use the U-Boot bootloader. This bootloader stores its configuration into an area of the flash called the environment that can be manipulated from within U-Boot using the printenv, setenv and saveenv commands, or from Linux … Continue reading →

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Creating and flashing UBI/UBIFS images

Posted on May 12, 2011 by David Wagner

Embedded-oriented filesystems are a scattered world. Flash-optimized filesystems are less so. JFFS2 has been widely used but has several performance issues (mount time, especially, though CONFIG_SUMMARY and sumtool fixes that since 2.6.15). LogFS doesn’t seem to be actively maintained. The … Continue reading →

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Faster boot: starting Linux directly from AT91bootstrap

Posted on September 19, 2009 by Albin Tonnerre

Reducing start-up time looks like one of the most discussed topics nowadays, for both embedded and desktop systems. Typically, the boot process consists of three steps: First-stage bootloader Second-stage bootloader Linux kernel The first-stage bootloader is often a tiny piece … Continue reading →

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Update on flash filesystems

Posted on November 24, 2008 by Michael Opdenacker

Reviewing new possibilities for flash filesystems – My slides at ELCE 2008 With the release of Linux 2.6.27, including the new UBIFS filesystem for MTD storage, embedded Linux system developers now have multiple choices for their flash storage devices. As … Continue reading →

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