Revision and Notes
Date | Owner | Revision | Notes |
|---|---|---|---|
| 1.0 | Initial release | |
1.1 | Production release | ||
Table of Contents | |||
Purpose
This guide provides basic instructions for operating the SolidRun AM64 HummingBoard-T and booting into Linux. Advanced usage scenarios are covered by separate technical documentation.
Hardware Setup
Connections
12V DC Power Adapter (12V recommended, HummingBoard-T supports 9V-36V)
microUSB cable for serial console
microSD card for storing bootable SW
TODO: photo showing relevant connectors, with microUSB console and power only, and dip switches
Boot Select
Configure the boot-mode for microSD using onboard DIP switch S1:
Switch | 1 | 2 | 3 | 4 | 5 | 6 |
|---|---|---|---|---|---|---|
microSD (FAT partition) | 0 | 0 | 0 | 1 | 0 | 1 |
microSD (RAW) | 1 | 0 | 0 | 0 | 1 | 1 |
eMMC | 1 | 0 | 0 | 1 | X | X |
Note: 0 = OFF, 1 = ON.
Console
Start an application for serial console - such as PuTTY or tio. Configure it for baud rate 115200 and the COMx or ttyUSBy interface representing the micro-USB console connection. For details also see Serial Connection.
Software Setup
Prepare bootable microSD Card
Download prebuilt sdcard image based on debian: microsd-222ee62-debian-bullseye.img.xz
uncompress downloaded image file
write image file to microSD card to create a byte-for-byte copy. https://etcher.io/ is recommended, professionals may use unix “dd” command.
First Steps with Debian reference system
Log-In
After inserting the programmed microSD card in the HummingBoard-T and after (re-)connecting the 12V power, the system should automatically boot to a login prompt displayed on the serial console:
Debian GNU/Linux 11 3f60b4ebfc7f ttyS2 3f60b4ebfc7f login: root Linux 3f60b4ebfc7f 5.10.168-00011-g0f54435fab1c #1 SMP PREEMPT Sun May 21 16:21:43 UTC 2023 aarch64 The programs included with the Debian GNU/Linux system are free software; the exact distribution terms for each program are described in the individual files in /usr/share/doc/*/copyright. Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent permitted by applicable law. root@3f60b4ebfc7f:~#
Log in with user-name “root”, no password.
Networking
By default networking is not configured. For advanced or persistent configurations please refer to the Debian Documentation.
For connecting the first RJ45 port (next to power connector) using automatic configuration, execute:
root@3f60b4ebfc7f:~# dhclient eth0
root@3f60b4ebfc7f:~# ip addr show eth0
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
link/ether 34:88:de:e3:c0:17 brd ff:ff:ff:ff:ff:ff
inet 192.168.1.225/24 brd 192.168.1.255 scope global dynamic eth0
valid_lft 552sec preferred_lft 552sec
inet 192.168.1.226/24 brd 192.168.1.255 scope global secondary dynamic eth0
valid_lft 552sec preferred_lft 552sec
inet6 fe80::3688:deff:fee3:c017/64 scope link
valid_lft forever preferred_lft forever
Log-In via SSH
To log in via SSH, an ssh key must be installed first. Copy your favourite public key, e.g. from ~/.ssh/id_ed25519.pub, into a new file in the root users home directory at ~/.ssh/authorized_keys:
root@e7c450f97e59:~# mkdir .ssh root@e7c450f97e59:~# cat > .ssh/authorized_keys << EOF ssh-ed25519 AAAAinsertyour pubkey@here EOF
Expand Root Filesystem
After flashing the root filesystem is smaller than the eMMC. To utilize all space, resize both the rootfs partition - and then the filesystem:
inspect partitions:
Using fdisk, view the current partitions. Take note of the start sector for partition 1!
root@e7c450f97e59:~# fdisk /dev/mmcblk0 Welcome to fdisk (util-linux 2.36.1). Changes will remain in memory only, until you decide to write them. Be careful before using the write command. Command (m for help): p Disk /dev/mmcblk0: 7.28 GiB, 7820083200 bytes, 15273600 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disklabel type: dos Disk identifier: 0xcc3ec3d4 Device Boot Start End Sectors Size Id Type /dev/mmcblk0p1 49152 2690687 2641535 1.3G 83 Linux Command (m for help):
resize partition 1:
Drop and re-create partition 1 at the same starting sector noted before, keeping the ext4 signature when prompted:
Command (m for help): d Selected partition 1 Partition 1 has been deleted. Command (m for help): n Partition type p primary (0 primary, 0 extended, 4 free) e extended (container for logical partitions) Select (default p): p Partition number (1-4, default 1): 1 First sector (2048-15273599, default 2048): 49152 Last sector, +/-sectors or +/-size{K,M,G,T,P} (49152-15273599, default 15273599): Created a new partition 1 of type 'Linux' and of size 7.3 GiB. Partition #1 contains a ext4 signature. Do you want to remove the signature? [Y]es/[N]o: N Command (m for help): p Disk /dev/mmcblk0: 7.28 GiB, 7820083200 bytes, 15273600 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disklabel type: dos Disk identifier: 0xcc3ec3d4 Device Boot Start End Sectors Size Id Type /dev/mmcblk0p1 49152 15273599 15224448 7.3G 83 Linux Command (m for help): w The partition table has been altered. Syncing disks.resize root filesystem:
Linux supports online-resizing for the ext4 filesystem. Invoke
resize2fson partition 1 to do so:root@e7c450f97e59:~# resize2fs /dev/mmcblk0p1