Case Study

Case 1

git clone https://github.com/occlum/enable_rdfsbase.git
cd enable_rdfsbase 
make && make install  #if still error，remake && reinstall

Case 2

• Mirror is incorrect.

• Curl is not installed in the container.

Case 3

• Install curl within the container.

• Missing sgx_default_gcnl.conf or sgx_default_qcnl.conf file

Case 4

• Mirror version is not correct, please check the mirror ID.

• Wrong version

Case 5

Mirroring is wrong, this time apply epid mirroring on Azure.

Case 6

Configuration file error, private key length is not correct.

Case 7

Check current configuration of max_map_count:

cat /proc/sys/vm/max_map_count

Not persistent way to modify the max_map_count:

sysctl -w vm.max_map_count=3097152

To make the changes persistent you should modify /etc/sysctl.conf and then (optionally) execute sysctl -p to apply the changes without reboot

echo "vm.max_map_count=3097152" >> /etc/sysctl.conf
sysctl -p

Case 8

If you are using the v0.11.9 image version of DHC, the Linux kernel version of the Operating System must be greater than 6.2. Another option is to reinstall the operating system, using at least 22.04 Ubuntu version.

Case9

If the "current peers" is 0, it means your device can not be connected through the P2P network. You should check the internet connection and the public IP first. Then you should check the security configuration of the cloud service which you can refer to the official docs for help.

Case 10

For images with versions greater than v0.12.8, you need to add the run command to the startup command line, for example occlum run /bin/bnk-watcher run /host/keyring.toml.