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How to Adapt Anolis OS on SG2042 EVB

1. Prerequisites​

  • Computer with Linux OS
  • SG2042 EVB
  • microSD Card (32GB or above), microSD Card Reader
  • Serial Cable (Micro USB - USB)

2. Adjust SD partitions​

  • Make three partitions on your SD card
$ sudo fdisk /dev/sda
  • Format partitions into corresponding file systems
$ sudo mkfs.vfat /dev/sda1 -n EFI
$ sudo mkfs.ext4 /dev/sda2
$ sudo mkfs.ext4 /dev/sda3
  • Expand the third partition
$ sudo e2fsck -f /dev/sda3
$ sudo resize2fs /dev/sda3
  • Label the partition with a name
$ sudo e2label /dev/sda2 BOOT
$ sudo e2label /dev/sda3 ROOT

3. Add content to the partitions​

Step 1: Copy firmware into EFI partition​

# get the following folders:
.
├── fip.bin
├── riscv64
│   ├── fw_jump.bin
│   ├── initrd.img
│   ├── mango-milkv-pioneer.dtb
│   ├── mango-sophgo-pisces.dtb
│   ├── mango-sophgo-x4evb.dtb
│   ├── mango-sophgo-x8evb.dtb
│   └── riscv64_Image
└── zsbl.bin

Step 2: Create ROOT partition content​

  • If you have anolis os RV-root.ext4 file, use the dd command to copy the RV-root.ext4 to the ROOT partition
$ sudo dd if=RV-root.ext4 of=/dev/sda3 bs=4M status=progress
  • Or if you have anolis os rootfs directory ,copy it into the ROOT partition
  • Copy kernel-6.5.31.riscv64.rpm into ROOT/home directory and mount BOOT partition to the boot directory of ROOT partition
  • Change ROOT partition to root directly and modify system partition mounting information
$ vim /etc/fstab
  • fstab contents as following:
LABEL=ROOT   /       ext4    defaults,noatime,x-systemd.device-timeout=300s,x-systemd.mount-timeout=300s 0 0
LABEL=BOOT   /boot       ext4    defaults,noatime,x-systemd.device-timeout=300s,x-systemd.mount-timeout=300s 0 0
  • Install the kernel
$ rpm -ivh --force /home/kernel-6.5.31.riscv64.rpm

Step 3: Enter BOOT partition and add boot file​

$ mkdir extlinux && cd extlinux
$ vim exitlinux.conf
  • exitlinux.conf contents as following:
default anolis_sophgo
menu title linuxboot menu
prompt 0
timeout 50

label anolis_sophgo
   menu label anolis Sophgo in SD
   linux /vmlinuz-$kernel_version
   initrd /initramfs-$kernel_version.img 
   append  console=ttyS0,115200 root=LABEL=ROOT rootfstype=ext4 rootwait rw earlycon selinux=0 LANG=en_US.UTF-8 nvme.use_threaded_interrupts=1 nvme_core.io_timeout=3000

4. Boot from microSD Card​

  • Plug the microSD Card into the SG2042 EVB, connect the serial cable to your computer, and power on the EVB.
  • Enter the username anuser and the password anolisos.
  • Any operation needs the sudo privilege.