I installed Ubuntu 17.10 from the ISO: Ubuntu 17.10 "Artful Aardvark" - Alpha amd64 (20170626)
and the Ubuntu-Wayland session does not start because file /usr/bin/Xwayland is missing.
The same file exists on my installation from the ISO: Ubuntu 17.10 "Artful Aardvark" - Alpha amd64 (20170620) where the Wayland session works fine.
corrado@corrado-art2:/usr/bin$ ls Xwayland -l
-rwxr-xr-x 1 root root 2295192 mag 10 12:03 Xwayland
corrado@corrado-art2:/usr/bin$
corrado@corrado-art2:/usr/bin$ inxi -SP
System: Host: corrado-art2 Kernel: 4.11.0-8-generic x86_64 (64 bit)
Desktop: Gnome 3.24.2
Distro: Ubuntu Artful Aardvark (development branch)
Partition: ID-1: / size: 32G used: 7.8G (27%) fs: ext4 dev: /dev/sda4
ID-2: swap-1 size: 8.59GB used: 0.00GB (0%) fs: swap dev: /dev/sda2
corrado@corrado-art2:/usr/bin$
corrado@corrado-art2:/media/corrado/p8-aa-0626/usr/bin$ ls Xw*
ls: cannot access 'Xw*': No such file or directory
corrado@corrado-art2:/media/corrado/p8-aa-0626/usr/bin$
Jul 1 15:47:24 corrado-art3 gnome-shell[1587]: Failed to spawn Xwayland: Failed to execute child process “/usr/bin/Xwayland” (No such file or directory)
other info from my installation:
corrado@
System: Host: corrado-art3 Kernel: 4.11.0-9-generic x86_64 (64 bit gcc: 6.3.0)
Desktop: Gnome 3.24.2 (Gtk 3.22.15-0ubuntu2) dm: lightdm
Distro: Ubuntu Artful Aardvark (development branch)
Machine: Device: desktop Mobo: Gigabyte model: H87M-D3H v: x.x UEFI: American Megatrends v: F3 date: 04/24/2013
CPU: Dual core Intel Core i3-4130 (-HT-MCP-) cache: 3072 KB
flags: (lm nx sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx) bmips: 13568
clock speeds: min/max: 800/3400 MHz 1: 2466 MHz 2: 3389 MHz 3: 3054 MHz 4: 1633 MHz
Graphics: Card: Intel 4th Generation Core Processor Family Integrated Graphics Controller
bus-ID: 00:02.0 chip-ID: 8086:041e
Display Server: x11 (X.Org 1.19.3) drivers: modesetting (unloaded: fbdev,vesa)
OpenGL: renderer: Mesa DRI Intel Haswell version: 4.5 Mesa 17.1.2 (compat-v: 3.0) Direct Render: Yes
Audio: Card-1 Intel 8 Series/C220 Series High Definition Audio Controller
driver: snd_hda_intel bus-ID: 00:1b.0 chip-ID: 8086:8c20
Card-2 Intel Xeon E3-1200 v3/4th Gen Core Processor HD Audio Controller
driver: snd_hda_intel bus-ID: 00:03.0 chip-ID: 8086:0c0c
Sound: Advanced Linux Sound Architecture v: k4.11.0-9-generic
Network: Card: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
driver: r8169 v: 2.3LK-NAPI port: e000 bus-ID: 02:00.0 chip-ID: 10ec:8168
IF: enp2s0 state: up speed: 100 Mbps duplex: full mac: 94:de:80:7e:90:a7
Drives: HDD Total Size: 1000.2GB (6.2% used)
ID-1: /dev/sda model: ST1000DM003 size: 1000.2GB serial: Z1D6YBFR
Partition: ID-1: / size: 32G used: 6.0G (21%) fs: ext4 dev: /dev/sda8
ID-2: swap-1 size: 8.59GB used: 0.00GB (0%) fs: swap dev: /dev/sda2
RAID: System: supported: N/A
No RAID devices: /proc/mdstat, md_mod kernel module present
Unused Devices: none
Sensors: System Temperatures: cpu: 29.8C mobo: 27.8C
Fan Speeds (in rpm): cpu: N/A
Info: Processes: 225 Uptime: 24 min Memory: 904.3/7861.1MB Init: systemd v: 233 runlevel: 5 Gcc sys: N/A
Client: Shell (bash 4.4.121 running in gnome-terminal-) inxi: 2.3.22
corrado@