I removed old linux-image and linux-header files to free up space in /boot. I did this first by purging them in the terminal. Then, when I noticed some issues with how the the operating system performed, I tried to weed through the issues with Synaptic. After some removal and reinstallation of linux-images and headers, I seem to have ruined my /boot.Currently, I have linux-images 3.13.0-{37,57}-generic and 3.16.0.40-generic installed on the boot drive. 3.16.0.40-generic was the last known working version, but it since has been reinstalled and does not work. I was hoping to be able to remove old my linux-images and start from scratch with a Live USB. However apt-get purge and install commands seem to fail regularly when installing linux-images and headers. I keep having to remove the lock from the processes to run apt-get or dkpg commands.I have root access to the boot disk and data from the Live USB. I am new to Linux and Ubuntu. I am not sure what logs or commands I should be checking for errors.
Unable to boot After removing old kernels
linux;ubuntu;boot;apt;live usb