On 09/20/2011 04:25 PM, Lambrecht Jürgen wrote: > > Hello, > > When I want to run 'ubiattach' I get this error: > > barebox:/dev erase nand0.root1.bb > Skipping bad block at 0x08000000 > Skipping bad block at 0x08020000 > barebox:/dev ubiattach nand0.root1 > first do 'ubiformat' in linux or flash an ubi image. Then you can attach to it. Mark: you can only attach 1 mtd0 After a lot of reading and trial-and-error, now I understand ubi and ubifs. Juergen > > UBI: attaching mtd0 to ubi0 > UBI: physical eraseblock size: 131072 bytes (128 KiB) > UBI: logical eraseblock size: 129024 bytes > UBI: smallest flash I/O unit: 2048 > UBI: sub-page size: 512 > UBI: VID header offset: 512 (aligned 512) > UBI: data offset: 2048 > UBI: empty MTD device detected > UBI: create volume table (copy #1) > UBI error: ubi_io_write: error -5 while writing 512 bytes to PEB 0:512, > written 0 bytes > UBI error: ubi_io_write: error -5 while writing 512 bytes to PEB 1:512, > written 0 bytes > UBI error: ubi_io_write: error -5 while writing 512 bytes to PEB 2:512, > written 0 bytes > UBI error: ubi_io_write: error -5 while writing 512 bytes to PEB 3:512, > written 0 bytes > UBI error: ubi_io_write: error -5 while writing 512 bytes to PEB 4:512, > written 0 bytes > UBI error: ubi_io_write: error -5 while writing 512 bytes to PEB 5:512, > written 0 bytes > failed to attach: I/O error > ------------------------------------------------------------------ > - I use a imx27, and our HW is based on the imx27pdk. > - We use the BI-swap solution to work around the nand flash HW bug (2kB > pages are load in 512 chunks, mangling the spare area) (so > drivers/mtd/nand/nand_imx.c is patched). > - I see UBI detects a sub-page size of 512B, what does that mean? > Because in the UBI menu config "drivers - mtd - NAND - select nand > pagesize you want to support booting from", I must take '2048 byte page > size'; with '512 byte and 2048 byte pagesize' selected the board does > not boot. > - I use LTIB from CVS (not the freescale one), that I have patched > according to the imx28 BSP from freescale to support UBI > > Kind regards, > Jürgen > > -- > Jürgen Lambrecht > R&D Associate > Tel: +32 (0)51 303045 Fax: +32 (0)51 310670 > http://www.televic-rail.com > Televic Rail NV - Leo Bekaertlaan 1 - 8870 Izegem - Belgium > Company number 0825.539.581 - RPR Kortrijk > > _______________________________________________ > barebox mailing list > barebox@xxxxxxxxxxxxxxxxxxx > http://lists.infradead.org/mailman/listinfo/barebox > -- Jürgen Lambrecht R&D Associate Tel: +32 (0)51 303045 Fax: +32 (0)51 310670 http://www.televic-rail.com Televic Rail NV - Leo Bekaertlaan 1 - 8870 Izegem - Belgium Company number 0825.539.581 - RPR Kortrijk _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox
