problems saveenv (and thus booting linux)

Forum: Bootloader
dragilla 
When I do saveenv on uboot i get:
MINI2440 # saveenv 
Saving Environment to NAND...
Erasing Nand...MINI2440 #

And I think I should get:
Saving Environment to NAND...
Erasing Nand...Writing to Nand... done

After reboot environmental variables are not saved. I can't set bootcmd and
thus I can't boot my linux.

After a reset this is what I see (I think this is the reason):
Erasing Nand...MINI2440 # reset�

U-Boot 1.3.2-mini2440 (Oct 30 2011 - 10:56:54)

I2C:   ready
DRAM:  64 MB
NOR Flash not found. Use hardware switch and 'flinit'
Flash:  0 kB
NAND:  1024 MiB
*** Warning - bad CRC or NAND, using default environment

USB:   S3C2410 USB Deviced
In:    serial
Out:   serial
Err:   serial
MAC: 08:08:11:18:12:27
Hit any key to stop autoboot:  0 
MINI2440 #

Is this normal - Warning - bad CRC or NAND, using default environment?
What can I do to fix it?

regards,
-- 
Luke

dragilla 
Also ls and fsinfo command give me some strange errors about nand:

MINI2440 # ls
Scanning JFFS2 FS:   get_fl_mem_nand: can't alloc 872115028 bytes
off = 0x24588 magic 0x1985 type 0x0 node.totlen = 872115028
 done.
MINI2440 # fsinfo 
### filesystem type is JFFS2
Scanning JFFS2 FS:   get_fl_mem_nand: can't alloc 872115028 bytes
off = 0x24588 magic 0x1985 type 0x0 node.totlen = 872115028
 done.
Compression: NONE
        frag count: 0
        compressed sum: 0
        uncompressed sum: 0
Compression: ZERO
        frag count: 0
        compressed sum: 0
        uncompressed sum: 0
Compression: RTIME
        frag count: 0
        compressed sum: 0
        uncompressed sum: 0
Compression: RUBINMIPS
        frag count: 0
        compressed sum: 0
        uncompressed sum: 0
Compression: COPY
        frag count: 0
        compressed sum: 0
        uncompressed sum: 0
Compression: DYNRUBIN
        frag count: 0
        compressed sum: 0
        uncompressed sum: 0
Compression: ZLIB
        frag count: 0
        compressed sum: 0
        uncompressed sum: 0
MINI2440 #

dragilla 
Ok. Found a reson. This helps:

dynpart + dynenv :)

davef 
The warning is normal behaviour.

Check your environment by doing "printenv".

Which time zone are you in?

dragilla 
I'm in UTC+1 - Europe/Poland.

davef 
Just curious as you seem to going for a marathon :)

davef 
dynpart?  What does that do compared with mtdpart?

dragilla 
from http://wiki.openmoko.org/wiki/NAND_bad_blocks: 
Once you issue "dynpart", the partition configuration is put in the
"mtdparts" environment variable. If you "saveenv" the environment, it is
saved into the non-volatile environment partition.

davef 
mtdpart is the command specified in the tutorial. Is that just a read of
the partitions?

Is dynpart the same as nand createbbt?

dragilla 
Damn, it's awkward when you're asking me questions...
dynpart is for dynamic partitioning based on the result of the bbt
calculation. mtdpart just prints current partition table.

davef 
Why? I only know about 0.1% of things concerned with embedded Linux.

dragilla 
Probably more than me anyways. I'm in it since friday.