Hi all,
this is my first post in this mailing list. I hope I don't start with a FAQ.
On my board I have installed U-Boot and I'm able to run Linux kernel and rootfs via Flash/Flash (ramdisk/image file) or TFTP/NFS.
Of course, either ramdisk and nfs aren't suitable for my end application (ramdisk losts many RAM space and NFS won't be available).
So I'd like to use a local root filesystem stored in the NOR Flash (a J30 Intel), starting from the small ramdisk I have and adding all software I need.
I could divide my Flash memory in three partitions: - U-Boot bootloader (with the two sectors for its configuration) - Linux kernel image - JFFS2 root filesystem
But I want to go futher and I want to save the linux kernel image file into the root JFFS2 filesystem. So I'll have only two main partitions: - U-Boot bootloader (...) - JFFS2 root filesystem (with linuk kernel image file saved inside)
Is U-Boot able to run a kernel image file that is saved into a JFFS2 filesystem stored in the Flash? I think this is what happens on a desktop computer (where the bootloader is Grub and the root filesystem is on a hard-disk and the kernel is a file saved into it).
I think it isn't so simple for U-Boot that is capable of running the application (linux kernel in my case) only at a specified memory address (it doesn't have any knowledge about JFFS2 filesystem, do it?).
Many thanks for your comments and my compliments for the good work!
Giuseppe