Hi Renaud, On Wed, May 26, 2021 at 12:53:55PM +0000, Barbier, Renaud wrote: > Question on the UBIFS support > > Is barebox doing the full bad block management? > i.e before booting the system to the Linux prompt, will barebox fix bad blocks? > > I am asking this question because some customers may want to boot a > initramfs image from NAND. In this case Linux will not mount the NAND > to do the bad block fixing. Bad block management is done in UBI, not UBIFS. The UBI code is derived from Linux and is expected to do the same job. This includes checking the amount of bitflips and rewriting the data on a fresh block if the number of bitflips exceeds a certain threshold. Suspicious blocks are tortured with r/w cycles to see if they are bad and the blocks are marked as bad when they are. However, are you saying the whole NAND is readonly most of the time? Aren't there any other partitions? Sascha -- Pengutronix e.K. | | Steuerwalder Str. 21 | http://www.pengutronix.de/ | 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox
