[Buildroot] Persistent U-Boot environment variables under QEMU
Jim Thomas
jimthomasembedded at yahoo.com
Sat Feb 13 21:51:26 UTC 2010
I am experimenting with Buildroot under QEMU, using buildroot-2009.11 and buildroot-2010.02-rc1.
So far, so good. I can boot a Linux kernel and RFS built by Buildroot under QEMU (versatilepb) where the RFS is exported via NFS.
QEMU includes a boot loader, so U-Boot is not needed. But I use U-Boot with real ARM hardware, so I would like to experiment with U-Boot under QEMU, adding DHCP and TFTP to the mix.
With real hardware, the U-Boot environment variables are persistent in flash memory.
Is there a way to simulate this with QEMU? I would not go to the trouble to manually enter the U-Boot environment variables each time I boot under QEMU, but if there is a persistence mechanism available then including U-Boot might be practical.
Thanks.
Jim
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