diff --git a/debugging/002-Ubuntu-20_04/02-Kernel-Boot-Params.md b/debugging/002-Ubuntu-20_04/02-Kernel-Boot-Params.md
index 5583e73..db283f7 100644
--- a/debugging/002-Ubuntu-20_04/02-Kernel-Boot-Params.md
+++ b/debugging/002-Ubuntu-20_04/02-Kernel-Boot-Params.md
@@ -131,22 +131,3 @@ sudo usermod -G video -a $USER
 
 ```
 
-## Logging Out and Back In
-
-The groupd `video` doesn't show up in the group list,
-
-```
-$ id
-uid=1000(arcologos) gid=1000(arcologos) groups=1000(arcologos),4(adm),24(cdrom),27(sudo),30(dip),46(plugdev),120(lpadmin),133(lxd),134(sambashare)
-```
-
-but now we get an additional line at the end of `clinfo` before it hangs.
-
-```
-ERROR: clCreateKernel(-6)
-```
-
-Next is to try adding to the `render` group, and then installing
-`libnuma-dev` as recommended in the above GitHub Issue thread comment.
-
-## Add User to Render Group
diff --git a/debugging/002-Ubuntu-20_04/025-Tempaa b/debugging/002-Ubuntu-20_04/025-Tempaa
deleted file mode 100644
index db283f7..0000000
--- a/debugging/002-Ubuntu-20_04/025-Tempaa
+++ /dev/null
@@ -1,133 +0,0 @@
-# Kernel Boot Params
-
-## Updating Grub
-
-To select the `AMDGPU` driver / module.
-
-https://askubuntu.com/a/1314983
-
-I'll add the following flags to the appropriate line in `/etc/default/grub`
-
-```
-GRUB_CMDLINE_LINUX_DEFAULT="radeon.si_support=0 radeon.cik_support=0 amdgpu.si_support=1 amdgpu.cik_support=1 amdgpu.dc=1 amdgpu.dpm=1 amdgpu.modeset=1"
-```
-
-Then run
-
-```
-sudo update-grub
-```
-
-and reboot, selecting Ubuntu 20.04 per this branch of the debugging tree.
-
-## Rebooting
-
-After rebooting, `OpenCL` detects the GPU! But it hangs and does not return from the call
-
-```
-sudo clinfo -l
-```
-
-The call without the `sudo` yields just the CPU and `Number of devices: 0` as before.
-
-Here's the glorious output:
-
-```
-$ sudo clinfo -l
-[sudo] password for arcologos: 
-Number of platforms:				 1
-  Platform Profile:				 FULL_PROFILE
-  Platform Version:				 OpenCL 2.1 AMD-APP (3558.0)
-  Platform Name:				 AMD Accelerated Parallel Processing
-  Platform Vendor:				 Advanced Micro Devices, Inc.
-  Platform Extensions:				 cl_khr_icd cl_amd_event_callback 
-
-
-  Platform Name:				 AMD Accelerated Parallel Processing
-Number of devices:				 1
-  Device Type:					 CL_DEVICE_TYPE_GPU
-  Vendor ID:					 1002h
-  Board name:					 AMD Radeon (TM) R9 390 Series
-  Device Topology:				 PCI[ B#3, D#0, F#0 ]
-  Max compute units:				 40
-  Max work items dimensions:			 3
-    Max work items[0]:				 1024
-    Max work items[1]:				 1024
-    Max work items[2]:				 1024
-  Max work group size:				 256
-  Preferred vector width char:			 4
-  Preferred vector width short:			 2
-  Preferred vector width int:			 1
-  Preferred vector width long:			 1
-  Preferred vector width float:			 1
-  Preferred vector width double:		 1
-  Native vector width char:			 4
-  Native vector width short:			 2
-  Native vector width int:			 1
-  Native vector width long:			 1
-  Native vector width float:			 1
-  Native vector width double:			 1
-  Max clock frequency:				 1005Mhz
-  Address bits:					 64
-  Max memory allocation:			 7301444400
-  Image support:				 Yes
-  Max number of images read arguments:		 128
-  Max number of images write arguments:		 8
-  Max image 2D width:				 16384
-  Max image 2D height:				 16384
-  Max image 3D width:				 16384
-  Max image 3D height:				 16384
-  Max image 3D depth:				 8192
-  Max samplers within kernel:			 26545
-  Max size of kernel argument:			 1024
-  Alignment (bits) of base address:		 1024
-  Minimum alignment (bytes) for any datatype:	 128
-  Single precision floating point capability
-    Denorms:					 No
-    Quiet NaNs:					 Yes
-    Round to nearest even:			 Yes
-    Round to zero:				 Yes
-    Round to +ve and infinity:			 Yes
-    IEEE754-2008 fused multiply-add:		 Yes
-  Cache type:					 Read/Write
-  Cache line size:				 64
-  Cache size:					 16384
-  Global memory size:				 8589934592
-  Constant buffer size:				 7301444400
-  Max number of constant args:			 8
-  Local memory type:				 Scratchpad
-  Local memory size:				 65536
-  Max pipe arguments:				 16
-  Max pipe active reservations:			 16
-  Max pipe packet size:				 3006477104
-  Max global variable size:			 7301444400
-  Max global variable preferred total size:	 8589934592
-  Max read/write image args:			 64
-  Max on device events:				 1024
-  Queue on device max size:			 8388608
-  Max on device queues:				 1
-  Queue on device preferred size:		 262144
-  SVM capabilities:				 
-    Coarse grain buffer:			 Yes
-    Fine grain buffer:				 Yes
-    Fine grain system:				 No
-    Atomics:					 No
-  Preferred platform atomic alignment:		 0
-  Preferred global atomic alignment:		 0
-  Preferred local atomic alignment:		 0
-```
-
-## Add User to Video Group
-
-Per this response
-
-https://github.com/RadeonOpenCompute/ROCm/issues/482#issuecomment-410551357 
-
-I add the current user to the `video` group. I forget where I first read that this was necessary, but next also
-is to try the `render` group.
-
-```
-sudo usermod -G video -a $USER
-
-```
-