Difference between revisions of "Sd boot rootfs"
From ElphelWiki
(Created page with "==Notes== * The micro SD card/adapter must be modified for this boot mode (to keep CD pin high with the card inserted) - only then the camera will boot. * EXT4 partition mounted ...") |
(→Prepare the card) |
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** '''uImage''' | ** '''uImage''' | ||
** '''rootfs.tar.gz''' | ** '''rootfs.tar.gz''' | ||
| − | * Format into 2 partitions: FAT32 and EXT4 (use gparted or command line instructions below), the order of partitions is important or change bootargs in the device tree accordingly. | + | * Partition table: '''msdos''' ('''gpt''' won't work) Format into 2 partitions: FAT32 and EXT4 (use gparted or command line instructions below), the order of partitions is important or change bootargs in the device tree accordingly. |
* FAT32: copy the following files: | * FAT32: copy the following files: | ||
*** '''boot.bin''' | *** '''boot.bin''' | ||
Revision as of 15:05, 30 April 2016
Notes
- The micro SD card/adapter must be modified for this boot mode (to keep CD pin high with the card inserted) - only then the camera will boot.
- EXT4 partition mounted as /.
Prepare the card
PC:
- After all of the targets are built in poky use files from .../poky/build/tmp/deploy/images/elphel393/mmc/:
- boot.bin
- u-boot-dtb.img
- devicetree.dtb
- uImage
- rootfs.tar.gz
- Partition table: msdos (gpt won't work) Format into 2 partitions: FAT32 and EXT4 (use gparted or command line instructions below), the order of partitions is important or change bootargs in the device tree accordingly.
- FAT32: copy the following files:
- boot.bin
- u-boot-dtb.img
- devicetree.dtb
- uImage
- If EXT4 is not empty - format it or delete old contents
- Mount EXT4 to some <mountpoint>
- unpack the rootfs.tar.gz, console:
tar -C <mountpoint> -xzpf rootfs.tar.gz
Boot
- Insert, power on
Format micro SD card (command line)
Example for /dev/sda:
- create partitions with fdisk
- mkfs.vfat -F 32 /dev/sda1
- mkfs.ext4 /dev/sda2
