U-Boot for Nokia RX-51 with BootMenu (updated version 2012.10-rc3-1) - Page 8 - maemo.org

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ildar	2012-02-01 , 10:45
Posts: 20 \| Thanked: 14 times \| Joined on Oct 2011	#71

Originally Posted by Hurrian

I found the problem with my crapola not working.
fatls mmc 1 was listing down my Music folder off my eMMC. What the actual ****? It might be because of damaged fat32 though.
Moved bootmenu files to ~/MyDocs/Music/ and it worked.

Would probably still be banging rocks together if not for the Gumstix wiki.

Have the same here. Details:

1. Have the healthy FAT at /home/user/MyDocs
2. U-boot shows default menu
3. U-boot console:
Code:
```
mmc init
mmc dev 1
fatls 1
```
It shows the contents of /home/user/MyDocs/Text/0scraps/20111026223145

So U-boot indeed handles (v)FAT incorrectly.
My guess it is due to misaligned partition OR parted resize. I mean I used parted to resize /dev/mmcblk0p1 so that I could put another system on eMMC.

Any ideas howto fix?

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Netweaver	2012-02-01 , 14:12
Posts: 323 \| Thanked: 180 times \| Joined on Oct 2009 @ Gent, Belgium	#72

when creating the bootmenu.d file entry for the latest Nemo kernel, what extra boot arguments/options one needs enter in the file to boot Nemo from the SD card ?

or, what manual commands could be tried in the uboot console to boot nemo ?

stskeeps would be the best to answer this I guess, as he was the first person able to create the PR1.3+uboot kernel, able to boot from the external MMC.

Thanks.

Last edited by Netweaver; 2012-02-01 at 14:18.

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Rob1n	2012-02-01 , 14:32
Posts: 3,617 \| Thanked: 2,412 times \| Joined on Nov 2009 @ Cambridge, UK	#73

Originally Posted by Netweaver

when creating the bootmenu.d file entry for the latest Nemo kernel, what extra boot arguments/options one needs enter in the file to boot Nemo from the SD card ?

All I had to pass in was the normal root=/dev/mmcblk0pX argument to tell it which partition to boot to.

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pali	2012-02-01 , 15:16
Posts: 2,153 \| Thanked: 8,462 times \| Joined on May 2010	#74

Here are all supported variables for bootmenu entry:

ITEM_NAME=""
ITEM_DEVICE=""
ITEM_FSTYPE=""
ITEM_KERNEL=""
ITEM_INITRD=""
ITEM_SCRIPT=""
ITEM_CMDLINE=""
ITEM_USEATAG=""

Try to play with it, maybe you can get nemo booting. Now I do not have time to playing with it.

I tried this (stored kernel uImage-nemo in MyDocs) but not worked:
ITEM_NAME="Nemo"
ITEM_KERNEL="uImage-nemo"
ITEM_DEVICE="${INT_CARD}p1"
ITEM_FSTYPE="fat"

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Rob1n	2012-02-01 , 16:58
Posts: 3,617 \| Thanked: 2,412 times \| Joined on Nov 2009 @ Cambridge, UK	#75

Originally Posted by pali

Here are all supported variables for bootmenu entry:

ITEM_NAME=""
ITEM_DEVICE=""
ITEM_FSTYPE=""
ITEM_KERNEL=""
ITEM_INITRD=""
ITEM_SCRIPT=""
ITEM_CMDLINE=""
ITEM_USEATAG=""

Try to play with it, maybe you can get nemo booting. Now I do not have time to playing with it.

I tried this (stored kernel uImage-nemo in MyDocs) but not worked:
ITEM_NAME="Nemo"
ITEM_KERNEL="uImage-nemo"
ITEM_DEVICE="${INT_CARD}p1"
ITEM_FSTYPE="fat"

I think you need to add:
ITEM_CMDLINE="root=${EXT_CARD}p6"

or wherever the Nemo partition is.

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[DarkGUNMAN]	2012-02-01 , 17:06
Posts: 309 \| Thanked: 456 times \| Joined on Jan 2010	#76

Originally Posted by Rob1n

I think you need to add:
ITEM_CMDLINE="root=${EXT_CARD}p6"

or wherever the Nemo partition is.

How did you build the Nemo uImage to add to the boot entry?
Is it the same procedure used for a merged image (uboot + p49) and setting that one instead?

I would guess this will allow more than one O/S can be loaded from several partitions on the sdcard?

Last edited by [DarkGUNMAN]; 2012-02-01 at 17:13.

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pali	2012-02-01 , 17:26
Posts: 2,153 \| Thanked: 8,462 times \| Joined on May 2010	#77

Originally Posted by Rob1n

I think you need to add:
ITEM_CMDLINE="root=${EXT_CARD}p6"

or wherever the Nemo partition is.

!! ${EXT_CARD} is variable ONLY for ITEM_DEVICE !!

in ITEM_CMDLINE you should use root=/dev/mmcblk...

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pali	2012-02-01 , 17:27
Posts: 2,153 \| Thanked: 8,462 times \| Joined on May 2010	#78

Originally Posted by [DarkGUNMAN]

How did you build the Nemo uImage to add to the boot entry?
Is it the same procedure used for a merged image (uboot + p49) and setting that one instead?

I would guess this will allow more than one O/S can be loaded from several partitions on the sdcard?

store kernel image (must be in uImage format) to internal/external mmc and set correct variables.

script u-boot-update-bootmenu will then create correct bootmenu configuration

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plipp	2012-02-01 , 18:11
Posts: 4 \| Thanked: 2 times \| Joined on Feb 2012	#79

The nemo mobile project releases ready made raw images that you write to an sd card. I should be configured as follows:
partition 1: root filesystem
partition 2: swap
partition 3: /boot

So something like this:
ITEM_NAME="Nemo"
ITEM_KERNEL="uImage"
ITEM_DEVICE="${EXT_CARD}p3"
ITEM_FSTPE="fat"
ITEM_CMDLINE="root=/dev/mmcblk1p1"

Should work, right? But nope, it loads the right kernel (as does run sdboot in the console), but then it just shuts down.

Any suggestions?

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pali	2012-02-01 , 18:49
Posts: 2,153 \| Thanked: 8,462 times \| Joined on May 2010	#80

Originally Posted by plipp

The nemo mobile project releases ready made raw images that you write to an sd card. I should be configured as follows:
partition 1: root filesystem
partition 2: swap
partition 3: /boot

So something like this:
ITEM_NAME="Nemo"
ITEM_KERNEL="uImage"
ITEM_DEVICE="${EXT_CARD}p3"
ITEM_FSTPE="fat"
ITEM_CMDLINE="root=/dev/mmcblk1p1"

Should work, right? But nope, it loads the right kernel (as does run sdboot in the console), but then it just shuts down.

Any suggestions?

I had same problem when tested.

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