Thanks Detlev, --- On Wed, 31/3/10, Detlev Zundel <d...@denx.de> wrote:
> From: Detlev Zundel <d...@denx.de> > Subject: Re: [U-Boot] Saving environment variables in MMC > To: nitin...@yahoo.com > Cc: "U-Boot user list" <u-boot@lists.denx.de> > Date: Wednesday, 31 March, 2010, 8:04 PM > Hi Nitin, > > > Thanks for the information. I just wanted to have a > feedback, whether > > having a use-case of writing env variables from Linux > User space is a > > good idea or is not recommended? > > You found tools/env/fw_env.c showing that this > functionality is indeed > foreseen and used. > > It is rather common to write to the U-Boot environment in > projects for > example to switch to a new set of kernel+file system after > an update > from within linux for the next boot. > My use case is exactly same, to switch to a new set of kernel+fs after an update for the next boot. I also have another usecase of updating the env variable 'bootargs' if required in the field. So this use-case combined with fw_env, what is your feedback? Could you give me some pointers on upgrading u-boot itself, but I don't have a spare partition for that. I would have to replace working copy itself? I would wanted to have more info(in addition to what I have implemented) regarding the failsafe upgrade mechanisms for embedded-linux apps and kernel? Could you please point me to right forums regarding this. I understand that this is not specific to u-boot, but just give me some pointers. regards -Nitin > Is this feedback enough? > > Cheers > Detlev > > -- > The structure of a system reflects the structure of the > organization > that built it. > > > -- Richard E. Fairley > -- > DENX Software Engineering GmbH, MD: > Wolfgang Denk & Detlev Zundel > HRB 165235 Munich, Office: Kirchenstr.5, D-82194 > Groebenzell, Germany > Phone: (+49)-8142-66989-40 Fax: (+49)-8142-66989-80 Email: > d...@denx.de > Get your new Email address! Grab the Email name you've always wanted before someone else does! http://mail.promotions.yahoo.com/newdomains/aa/ _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot