I dug up old posts, and some old users suggested using the sudo apt-get install build-essential and similar commands to reinstall make. This may mean that the package is missing, has been obsoleted, or is only available from another source E: Package 'make' has no installation candidate. Trying to run this command gives another error, stating Package make is not available, but it is referred to by another package. When I tried to use the make command however, I got an error stating that the command isnt found but can be installed with sudo apt install make. I downloaded it on another computer, used an USB to transfer it to the new computer, unzipped it, and executed the first few commands as shown. I searched up this tutorial to help me install the driver. RTL8821CE 802.11ac PCIe Wireless Network Adapter. Using lspci the network controller is shown to be Realtek Semiconductor Co., Ltd. However, the wifi doesnt work, because the driver isnt installed. Ubuntu installation didnt show up on the Boot menu, I needed to hold F10 to get into BIOS and now whenever I start it, it needs to be booted up from GNU grab menu. Before that the laptop only had FreeDOS installed. I went on to install it with another offical tutorial. I got a new HP computer and installed Linux Ubuntu 20.04 from a bootable USB that I created from the instructions on the Ubuntu website.
Google for more info.I should preface I'm almost completely new to Linux, especially installment-wise so please bear with me. This b728 can be something else, and this will determine driver required. To check which driver you need, give command lsusb and search the output list for something like 0bda:b728 Realtek Semiconductor Corp. For me, rtl8723be was required, you may require some other driver.
There are many other drivers of realtek in rtlwifi_new. This rtl8723be in last command was the driver I required. sudo apt-get install linux-headers-generic build-essential git.Now we have to install realtek driver.Give command sudo apt-get purge linux-image-3.14.
It gives a list of kernels, identify the older version, for example linux-image-3.11.Now we have to remove old kernel, for that, first list the kernels currently present by command sudo dpkg -list | grep linux-image.After rebooting, run sudo apt-get -f autoremove.reboot into the new 3.16.x by command sudo reboot.First upgrade the kernel to 3.16 as shown in accepted answer at this link.Installing Realtek wifi driver in ubuntu (any version)
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