Bootargs and Dual boot

GoogleGroups
1

Hello,

I am trying to do the Dual boot on the Beagle board.

So following the tuto on your page I have the Fat32 partition with the following files : MLO, rd-ext2.bin, u-boot.bin, uImage

And the second Linux partition with all the files necessary for Linux FS /bin, /tmp, /dev, /root …

I got the first prompt from u-boot and this is the result of printenv :

OMAP3 beagleboard.org # printenv

bootcmd=mmcinit;fatload mmc 0 0x80300000 uImage; fatload mmc 0 0x81600000 rd-ex0

bootargs=console=ttyS2,115200n8 ramdisk_size=10240 root=/dev/ram0 rw rootfstypeM

stdin=serial

stdout=serial

stderr=serial

Environment size: 252/131068 bytes

OMAP3 beagleboard.org #

So the problem is that with this bootargs I don’t boot on the File system from the SD card !!

So what are the good arguments to use with the Dual boot using the SDcard.

THx,

regards

2

Try this:
setenv bootargs console=ttyS2,115200n8 noinitrd root=/dev/mmcblk0p1 rootfstype=ext2 rw rootdelay=5

You might have to change rootfstype to ext3 if this is what you have on MMC/SD.

the root can also change from mmcblk0p1 to mmcblk0p2, if the kernel detects your FS as second partition.

Regards,
Khasim

3

I’ve seen that leaving ‘rootfstype’ out works fine using autodetection.

4

Thx It is working actually

But I added ‘noinird’ in the bootargs. I think this is important either

Regards,

5

Noinitrd means not booting from ramDisk

6

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