CSMwrap - boot CSM on UEFI only systems.

[Dietmar]

Tutorial, how to compile a working csmwrap.efi

dietmar.stoelting@t-online.de   June 2025

 

1.) Install Ubuntu 24.04.2 LTS

2.) Type this at the command line from Ubuntu

sudo apt update
sudo apt install -y build-essential nasm git curl xxd
git clone https://github.com/FlyGoat/CSMWrap.git --recursive
cd CSMWrap
make seabios
make

 

Edited yesterday at 11:17 AM by Dietmar

[reboot12]

OK, but this compile version 1.1.0-12

[Dietmar]

@reboot12

For me, this old version 1.1.0-12 is crazy.

I do not understand, why they dont update their Sources

Dietmar

 

PS: We can make a try, with copy and paste the updated files into the install folders in Ubuntu, under CSMWrap.

This should give a version, that is better than 1.2.1.

Important is, also to compile SeaBios each time new.

[reboot12]

@Dietmar

No, I tried like this but errors:

wget https://github.com/FlyGoat/CSMWrap/archive/refs/tags/1.2.1.tar.gz
tar -xvf 1.2.1.tar.gz
mv CSMWrap-1.2.1 csmwrap
cd csmwrap
root@ubuntu:~/csmwrap# make seabios
make -C seabios distclean
make[1]: Entering directory '/root/csmwrap/seabios'
make[1]: *** No rule to make target 'distclean'.  Stop.
make[1]: Leaving directory '/root/csmwrap/seabios'
make: *** [GNUmakefile:271: seabios] Error 2
root@ubuntu:~/csmwrap# make
make: *** No rule to make target 'nyu-efi/src/elf_x86_64_efi.lds', needed by 'bin-x86_64/csmwrap'.  Stop.

F..k, but a mess

Edited 13 hours ago by reboot12

[reboot12]

OK, git corrected and now downloads the current version

This is full tutorial how compile CSMWrap:

Download and install Ubuntu: https://releases.ubuntu.com/noble/ubuntu-24.04.2-live-server-amd64.iso
During installation, select Install OpenSSH server - this makes it easy to copy files from Ubuntu to Windows using WinSCP and use Ubuntu over SSH e.g. in Putty

sudo passwd root (enter password for user)
sudo passwd root (make new password for root)
sudo login root or reboot and login using root
nano /etc/ssh/sshd_config

    PermitRootLogin yes
    PasswordAuthentication yes

Ctrl+o to save and Ctrl+x to exit
service ssh restart

apt update
apt install -y build-essential nasm curl xxd net-tools

git clone https://github.com/FlyGoat/CSMWrap.git --recursive
cd CSMWrap
make seabios
make

ifconfig - to check IP
using WinSCP make connection and connect to Ubuntu:

New Site, File protocol: SCP, Host name: IP, root User name and Password, Save
 

Edited 13 hours ago by reboot12

[Dietmar]

@reboot12

I still do not understand,

why now you get the latest Source files from csmwrap.efi .

Is it, because you connect now to another server via

git clone https://github.com/FlyGoat/CSMWrap.git --recursive

Dietmar

[reboot12]

4 minutes ago, Dietmar said:

I still do not understand,

why now you get the latest Source files from csmwrap.efi .

Is it, because you connect now to another server via

No, they probably already corrected the repository and now git clones the latest version :-)

[reboot12]

@Dietmar

Please test this CSMWrap on your Lenovo Flex 10 or other BayTrail 32 or 64-bit UEFI:
https://files.catbox.moe/6xj4hm.zip

Edited 57 minutes ago by reboot12