upgrade – updating 20.04.1 LTS

Previous System: Ubuntu 18.04.3 LTS (Now Ubuntu 20.04.1 LTS in settings icon under about —- in TimeShift program shows Ubuntu 18.04.3 LTS.)

Memory: 62. GIB
Processor: Intel Xeon® CPU E3-1240 v5 @3.50 Hz 8
Graphics: livmpipe (LLVM 8.0 256 bits)
GNOME: 3.82.2
OS type: 64-bit
Disk: 982.8

Disks installed:
1.0 TB Disk – Samsung SSD 97- Pro 1TB (where OS resides)
4.0 TB Hard Disk WDC WD4005FZBX-00K5WB0 (01.01A01) Labeled Backup. Used to backup documents from Ubuntu 18 & windows XP. Mounted at run/timeshift/backup
4.0 TB Hard Disk WDC WD4002FYYZ-01B7CB1 (01.01M03) Labeled Backup1. Used to backup ubuntu 18 before upgrade. Not mounted
999 GB Block Device 999 GB — 837 GB free (16.2% full)
/dev/ubuntu-vg/root
1.0 GB Block Device .0 GB (1,023,410,176 bytes)
/dev/ubuntu-vg/swap_1

Upgraded Ubuntu 18.04.3 LTS to Ubuntu 20.04.28 on October 28, 2020.

PROBLEMS:

1.  Tor browser will “flash” to log in screen and then sometimes just exit when changing from one display to another.  ( have two displays)
2. All the icons on desktop are different in appearance than they were in Ubuntu 18.  95% of desktop icons appear as rectangles with gears wheels in the rectangles.  Some will open – most will not.
3. Can not Bookmark url on to desktop from FireFox browser
4. On Ubuntu 18 had “timeshift program” saving to disk labeled “Backup” and could access the disk from File manager anytime to save documents.  Now under Ubuntu 20 only way I can access Backup disk is to double click mounted: run/timeshift/backup under discs icon.  Sometimes about 75% of time the disk Backup disc does not even show up under File manager.
5. Can not open Stellarium.  Removed and reinstall program still did not work.  It opens with top black border but can see desktop icon through Strellarium window.
6. Can not update Thunderbird.  Present version 68.10.0 (64 bits)  newest version 78.  No update button.      From Software center.
7. Moneydance program will exit back to log-in screen.
8. Moving program from one display screen to 2nd display screen will remain logged in but see a brief flash of login screen.