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/* Compile custom kernel */
* For example, on Linux Mint 19 with kernel 4.15+ serial port initially detected as /dev/ttyS6, but then device node is absent in the /dev/ directory
=== Temporary solution ===
* Ensure latest BIOS is installed: [[Fitlet2:_BIOS_Files]]
* Install development Ubuntu kernel provided by Canonical Kernel Team
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=== Compile custom kernel ===* The above temporary solution works for Ubuntu based distributions like Linux mint onlyMint, for other distributions, see below.
* Another way is to get serial port working is to recompile your kernel manually and unset CONFIG_SERIAL_DEV_BUS in menuconfig
* The configuration path: Device Drivers > Character devices > Serial device bus
