d5ad41a723
Make the SD card flashing procedure text consistent with the other i.MX boards. Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
100 lines
2.8 KiB
Plaintext
100 lines
2.8 KiB
Plaintext
This configuration is intended as a base image.
|
|
It includes kernel and firmware support for the common USB WiFi hardware.
|
|
Packages for WiFi support are up to the user, you'll probably want
|
|
one or more of: hostapd, iw, wireless_tools and/or wpa_supplicant.
|
|
|
|
It also pulls up the console on the serial port, not on TV output.
|
|
|
|
=== Output files after building ==============================================
|
|
|
|
output/images
|
|
+-- boot.vfat (VFAT kernel partition image generated by genimage)
|
|
+-- imx23-olinuxino.dtb (device tree blob)
|
|
+-- rootfs.ext2 (Root file system)
|
|
+-- sdcard.img (Complete SD card image generated by genimage)
|
|
+-- u-boot.sd (U-Boot image)
|
|
+-- uImage (Kernel binary)
|
|
|
|
=== Use of generated SD card image ===========================================
|
|
|
|
To determine the device associated to the SD card have a look in the
|
|
/proc/partitions file:
|
|
|
|
cat /proc/partitions
|
|
|
|
Then, run the following command as root:
|
|
|
|
*** WARNING! The command will destroy all the card content. Use with care! ***
|
|
|
|
sudo dd if=output/images/sdcard.img of=/dev/<your-microsd-device>
|
|
|
|
=== Manual creation of SD card image =========================================
|
|
|
|
You'll need a spare MicroSD card with Freescale's special partition layout.
|
|
This is basically three partitions:
|
|
|
|
1) Type 53, the U-Boot partition, should be 16MB.
|
|
2) VFAT, place the kernel uImage there
|
|
3) Anything you like, for this example an ext2 partition, type 83 (linux).
|
|
|
|
Assuming you see your MicroSD card as /dev/sdc you'd need to do, as root
|
|
and from the buildroot project top level directory:
|
|
(remember to replace /dev/sdc* with the appropiate device name!)
|
|
|
|
***** WARNING: Double check that /dev/sdc is your MicroSD card *****
|
|
***** It might be /dev/sdb or some other device name *****
|
|
***** Failure to do so may result in you wiping your hard disk *****
|
|
|
|
1. Unmount the filesystem(s) if they're already mounted, usually...
|
|
|
|
# for fs in `grep /dev/sdc /proc/mounts|cut -d ' ' -f 1`;do umount $fs;done
|
|
|
|
...should work
|
|
|
|
2. Blank the partition table out
|
|
|
|
# dd if=/dev/zero of=/dev/sdc bs=1024 count=1024
|
|
|
|
3. Set up the partitions
|
|
|
|
# fdisk /dev/sdc
|
|
n
|
|
p
|
|
1
|
|
<ENTER>
|
|
+16MB
|
|
t
|
|
53
|
|
n
|
|
p
|
|
2
|
|
<ENTER>
|
|
+5M
|
|
t
|
|
2
|
|
4
|
|
n
|
|
p
|
|
3
|
|
<ENTER>
|
|
<ENTER>
|
|
w
|
|
|
|
4. Fill up the first (U-Boot) partition
|
|
# dd if=output/images/u-boot.sd bs=512 of=/dev/sdc1
|
|
|
|
5. Create VFAT Filesystem
|
|
# mkfs.vfat /dev/sdc2
|
|
|
|
6. Mount and copy output/images/uImage.imx23-olinuxino to the VFAT partition, rename to uImage
|
|
# mount /dev/sdc2 /mnt
|
|
# cp output/images/uImages/uImage.imx23-olinuxino /mnt/uImage
|
|
# umount /mnt
|
|
|
|
7. Fill up the third (filesystem) partition
|
|
# dd if=output/images/rootfs.ext2 of=/dev/sdc3 bs=512
|
|
|
|
8. Remove the MicroSD card from your linux PC and put it into your olinuxino.
|
|
|
|
9. Boot! You're done!
|