My previous question How to install extlinux on Ubuntu 19.10? was closed as a duplicate with a link to similar topics. But there I did not find a solution to my problem. I apologize, but I have to ask for help again.
The software has booted. The next step was to install the bootloader. Detected that the Syslinux folder is located in / usr / lib / syslinux. Extlinux folder is not at all. To install the bootloader gave the command: sudo syslinux --install / boot / syslinux (the folder / boot / syslinux was created earlier) Error: sudo: / usr / lib / syslinux: command not found
He gave the command to copy the boot sector to a USB flash drive: dd if = / usr / lib / syslinux / mbr.bin of = / dev / sdd Again the error: dd: failed to open '/usr/lib/syslinux/mbr.bin': No such file or directory.
Tell me, please, what am I doing wrong?
