Hi, > -----Original Message----- > From: davinci-linux-open-source- > [email protected] [mailto:davinci-linux- > [email protected]] On Behalf Of > Nitin Mahajan > Sent: Wednesday, February 04, 2009 12:24 AM > To: [email protected] > Subject: Readonly NAND flash > > HI! > > I am using the LSP 2.00 Beta, i. e 2.6.18 kernel. If I place the rootfs on > NAND flash, how can I make it Read Only? > > I know one way is through the 'bootargs', Isn't there a way through kernel > configuration?
There is no kernel configuration (kconfig) option to do this. However, you can easily change it in the board specific source code. NAND partitions in the board-dmxxx-evm.c. If you see the board-dm355-evm.c, there are 5 partitions defined - bootloader, params, kernel, filesystem1 and filesystem2. The bootloader and params partitions are already marked as "read-only" using the .mask_flags parameter defined as "MTD_WRITABLE". If you are using filesystem1 or filesystem2 as your root filesystem, you can change the corresponding .mask_flags to MTD_WRITABLE (from a current value of 0). Hope this helps. Thanks Sneha > > regards > > -Nitin > > > > New Email names for you! > Get the Email name you've always wanted on the new @ymail and > @rocketmail. > Hurry before someone else does! > http://mail.promotions.yahoo.com/newdomains/aa/ > > _______________________________________________ > Davinci-linux-open-source mailing list > [email protected] > http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
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