On 10/27/2018 07:08 PM, Orion Poplawski wrote: > On 10/27/18 10:42 AM, Yasha Karant wrote: >> Using yumex, rather than doing a full update to SL 7.5 production, I >> attempted to update over the network the kernel, firmware, and libgcc, >> allowing yumex (essentially yum) to establish the needed dependencies >> (other applications, etc., that also needed to be updated). The >> resulting kernel will not boot, but merely hangs. If one waits long >> enough, the "progress bar" at the bottom of the screen does show the >> typical blue/white progression, but that is all. When I reboot and >> manually select the previous kernel, the system reboots. I am using >> MATE for a "control" GUI, although as the system never gets to the login >> screen, MATE should not be "active". It appears that yumex (yum) does >> not fully resolve all required dependencies. What other components must >> I update? > > Pressing <ESC> should get you the text boot messages which hopefully > should point you towards what is going wrong - or remove rhgb from the > kernel command line. > > Following your suggestion, I pressed <ESC> . Ultimately, the boot hung at "Waiting for Plymouth boot screen to quit ..." Was something misconfigured/misinstalled by the yumex update of the kernel? I did note from the text messages that "Starting Gnome Display Manager" appeared at multiple steps.