If you like Unity don't upgrade.

Although Gnome has been tailored to deliver the Unity experience you are going to lose HUD.

I have upgraded mine because I use i3 and from Gnome i just need the gsd* utilities.

Everything works fine for me.

I just upgraded to 18.04.1 LTS (from 16.04 LTS) on a 7-year-old machine using the Update Manager. The install ran to completion but took 3 three hours on a 1-MB/s line. However, the installer repeatedly tried to install the Nvidia-304 driver (which worked under 16.04) but couldn't resolve the dependencies. It finally gave up and installed nouveau. The nouveau worked poorly and only used 640X480 resolution. The desktop icons were so large that they were piled on top of each other and most application windows went off screen. Most of the fonts were way too large. I was unable to change the screen resolution.

After messing around for quite a while, I discovered that the Nvidia-390 driver supported my graphics card. So I installed that from the repository, and everything returned to normal usability.

I did encounter one other major problem: my Epson Perfection V33 scanner no longer worked, but I found a fix with a Google search that restored that function. When I get a chance, I'll post a more complete description of the upgrade on my LQ blog.

#############################################################
Machine Description:
Vendor: Pogo Linux
Motherboard: Gigabyte Technology Co. GA-970A-U
CPU: AMD Athlon(tm) II X3 450 Processor, 3200MHz, 64 bits
RAM: 8GiB
Display: NVIDIA Corporation GF108 [GeForce GT 430]
Network: Realtek Semiconductor RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
Hard disks: 3 SATA drives (two 500 GB, one 1 TB)
Operating Systems (dual-boot): Ubuntu 18.04.1, Debian 9.5

1 members found this post helpful.

After upgrading 16.04 too.18.04 it took 5 min for it to boot up and the screen frequently froze, then after an update, it went into the terminal mode. I have gone back to 16.04 it takes only 80 seconds to boot up and is reliable. I will wait and see what is available after 2021.

Sounds like 18.04 may have some bugs or at the very least glitches.
As a general rule when a distribution first gets released I always wait at least 4 weeks for the dev's to get the bugs out:-

My Xubuntu 16.04 system prompted me to upgrade to 18.04 and I'm glad that I didn't.

I just discovered that the Unity desktop is still available with 18.04.1 LTS. It can be selected from the menu of desktops at the log-on GUI. It seems to work OK, although I haven't used it much, having just noticed its presence. I had erroneously thought that 18.04 was dropping Unity altogether. Maybe its days are numbered.

The present Unity still has the Launcher, the N X M matrix of workspaces, and the Dash (isn't that the Ubuntu icon defaulted to the upper left screen corner at the top of the Launcher?). The keyboard shortcuts that I had learned still seem to work. I did like Unity (when it was working). So I am going to continue using it.

I upgraded to 18.04 and regret it from the word go.
- After the upgrade, I battled to get the sound to work, in such a way that I had to take the PC to a workshop to sort it out.
- Still can't get the printer to work after following so many tips in the web.
- When booting up, many times takes over 2 mins to go online; I am lucky if I get the PC online in 1 min. Used to go online in under 15 secs. A good 6 times since the upgrade, after power up the PC, it just freezes. I have to cut the power out. Because of this, I since learn about REISUB
- youtube, mp4 and sound files are forever giving trouble: after playing videos for 2 or 3 hours, suddenly I get a message to restart the system. If I insist trying to get the video to work, the PC freezes and I have to cut the power to get out of that.

In a nutshell: stay as you are.

That's why i had two hard-drives and installed 18.04 in one of them and also had graffic glitches and gave up on 18.04 at least for now and switched back to 16.04 and i will only go back to 18.04 if xubuntu 18.04 can sort out these Nvidia graffic issues.

I've done a lot of reading and googling over the past few weeks with the nvidia GPU issues and I found a solution but you wouldn't believe the red tape you have to go through to fix the problem.

I thought the solution was in this thread until the issue of DKMS popped up.

https://www.linuxquestions.org/quest...175636838-new/

I finally "upgraded". My laptop is a Dell XPS13 developer edition, delivered with Ubuntu 16.04 installed.
I ended up burning the 18.04 ISO to thumbdrive and installing that. I also repartitioned, to have 50 G for
Ubuntu and a blank partition of 175G. After installing I set up the 175G partition using LVM for /home and /opt.
All seems to be working OK for now. I like GNOME 3 so far, but miss the workspace grid. Looking at the GNOME 3
workspace grid extension.

Congrads on the upgrade.
Thanks for the update--

I did an upgrade a week or so ago on my server. Didn't mess with anything, just upgraded. The process wasn't straight forward and I had a few things to sort out but got it running. However I discovered that my Mythtv playback on my living room box (also the server) was washed out and screwed up. I messed with it awhile, gave up and reinstalled 16.04 on another lvm partition and everything is working perfectly again. I haven't decided if I'll keep messing about with the Mythtv problem or if I'll just push myself till 20.04 comes out. Either way, I can say that Xenial works, Bionic does not for me.

1 members found this post helpful.

Just to clarify, I did a fresh install of 18.04, but restored my home directory from backup.