OS

Description

This program performs a transfer of SMBIOS tables from Host to BMC over IPMI BLOB protocol.

Usage

Install the latest meson:

$ pip3 install --user meson
$ source ~/.profile

Build ipmi-blob-tool library:

$ cd ~
$ git clone https://github.com/openbmc/ipmi-blob-tool.git
$ cd ipmi-blob-tool
$ meson setup builddir
$ cd builddir
$ meson compile

Build and run smbios_blob_transfer:

$ cd ~
$ git clone https://github.com/Kostr/smbios_blob_transfer.git
$ cd smbios_blob_transfer/OS
$ g++ smbios_blob_transfer.cpp -L~/ipmi-blob-tool/builddir/src/ -lipmiblob -I~/ipmi-blob-tool/src/ -o smbios_blob_transfer
$ sudo LD_LIBRARY_PATH=~/ipmi-blob-tool/builddir/src/ ./smbios_blob_transfer

After the program execution this file should be created on the BMC:

/var/lib/smbios/smbios2

If you don't want to pass all the parameters for dynamic library linking, you can install ipmi-blob-tool to your system.

smbios_transfer.go

This program was written as an alternative to Go utility smbios_transfer.go.

If you want to, you can use it instead.

$ git clone https://github.com/u-root/u-root.git
$ cd u-root/cmds/exp/smbios_transfer/
$ sudo go run smbios_transfer.go

If you don't have go, you'll need to install it. If you can't use package manager you can find all the downloads at the https://go.dev/dl/:

$ cd ~
$ wget https://go.dev/dl/go1.19.2.linux-amd64.tar.gz
$ sudo tar -xvf go1.19.2.linux-amd64.tar.gz
$ sudo mv go /usr/local

Add this to your ~/.profile:

export GOPATH=$HOME/go
export PATH=$PATH:/usr/local/go/bin:$GOPATH/bin

Now check that go is working:

source ~/.profile
$ go version
go version go1.19.2 linux/amd64

Access to smbios table files is not available for ordinary user, so you'll need to execute go program from root:

$ sudo -s

Therefore you need to midify ~/.profile for the root user as well:

export GOPATH=$HOME/go
export PATH=$PATH:/usr/local/go/bin:$GOPATH/bin

Check that go is working for root:

$ source ~/.profile
$ go version
go version go1.19.2 linux/amd64

Now run the smbios_transfer.go program:

$ cd ~/u-root/cmds/exp/smbios_transfer/
$ go run smbios_transfer.go

Alternatively you can build the executable and run it without go:

$ go build smbios_transfer.go
$ ./smbios_transfer

Systemd unit

Probably you'll want to execute smbios_blob_transfer program on every OS boot. Here is an example of a systemd unit that you can use:

[Unit]
Description=Transfer SMBIOS tables to OpenBMC
After=network.target

[Service]
Type=oneshot
Environment=LD_LIBRARY_PATH=/home/user/ipmi-blob-tool/builddir/src
ExecStart=/home/user/smbios_blob_transfer/OS/smbios-blob-transfer

[Install]
WantedBy=multi-user.target

Create service file with such content (replacing user with your actual username in paths) in the /etc/systemd/system/ folder:

sudo vi /etc/systemd/system/openbmc-smbios.service

After that reload the systemd service files to include the new service:

systemctl daemon-reload

Start new service:

systemctl start openbmc-smbios.service

If everything works correctly enable service to be launched on every boot:

systemctl enable openbmc-smbios.service