Volontiers. Ça donne :
sudo apt update
[sudo] password for laurent:
Hit:1 http://fr.archive.ubuntu.com/ubuntu xenial InRelease
Get:2 http://fr.archive.ubuntu.com/ubuntu xenial-updates InRelease [102 kB]
Get:3 http://security.ubuntu.com/ubuntu xenial-security InRelease [102 kB]
Hit:4 http://archive.canonical.com/ubuntu xenial InRelease
Get:5 http://fr.archive.ubuntu.com/ubuntu xenial-updates/main Sources [210 kB]
Get:6 http://fr.archive.ubuntu.com/ubuntu xenial-updates/universe Sources [111 kB]
Get:7 http://fr.archive.ubuntu.com/ubuntu xenial-updates/main amd64 Packages [440 kB]
Get:8 http://fr.archive.ubuntu.com/ubuntu xenial-updates/main i386 Packages [433 kB]
Get:9 http://security.ubuntu.com/ubuntu xenial-security/main Sources [52,5 kB]
Get:10 http://fr.archive.ubuntu.com/ubuntu xenial-updates/main Translation-en [171 kB]
Get:11 http://security.ubuntu.com/ubuntu xenial-security/universe Sources [14,9 kB]
Get:12 http://security.ubuntu.com/ubuntu xenial-security/main amd64 Packages [189 kB]
Get:13 http://fr.archive.ubuntu.com/ubuntu xenial-updates/main amd64 DEP-11 Metadata [293 kB]
Get:14 http://security.ubuntu.com/ubuntu xenial-security/main i386 Packages [183 kB]
Get:15 http://fr.archive.ubuntu.com/ubuntu xenial-updates/main DEP-11 64x64 Icons [184 kB]
Get:16 http://fr.archive.ubuntu.com/ubuntu xenial-updates/universe amd64 Packages [367 kB]
Get:17 http://security.ubuntu.com/ubuntu xenial-security/main amd64 DEP-11 Metadata [68,3 kB]
Get:18 http://security.ubuntu.com/ubuntu xenial-security/main DEP-11 64x64 Icons [48,1 kB]
Get:19 http://security.ubuntu.com/ubuntu xenial-security/universe amd64 Packages [64,5 kB]
Get:20 http://security.ubuntu.com/ubuntu xenial-security/universe i386 Packages [62,3 kB]
Get:21 http://fr.archive.ubuntu.com/ubuntu xenial-updates/universe i386 Packages [364 kB]
Get:22 http://security.ubuntu.com/ubuntu xenial-security/universe Translation-en [35,1 kB]
Get:23 http://security.ubuntu.com/ubuntu xenial-security/universe amd64 DEP-11 Metadata [19,4 kB]
Get:24 http://security.ubuntu.com/ubuntu xenial-security/universe DEP-11 64x64 Icons [25,6 kB]
Get:25 http://security.ubuntu.com/ubuntu xenial-security/multiverse amd64 DEP-11 Metadata [212 B]
Get:26 http://fr.archive.ubuntu.com/ubuntu xenial-updates/universe Translation-en [134 kB]
Get:27 http://fr.archive.ubuntu.com/ubuntu xenial-updates/universe amd64 DEP-11 Metadata [121 kB]
Get:28 http://fr.archive.ubuntu.com/ubuntu xenial-updates/universe DEP-11 64x64 Icons [145 kB]
Get:29 http://fr.archive.ubuntu.com/ubuntu xenial-updates/multiverse amd64 DEP-11 Metadata [2 516 B]
Fetched 3 942 kB in 1s (3 765 kB/s)
AppStream cache update completed, but some metadata was ignored due to errors.
Reading package lists... Done
Building dependency tree
Reading state information... Done
7 packages can be upgraded. Run 'apt list --upgradable' to see them.
et
sudo apt full-upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade... Done
The following packages were automatically installed and are no longer required:
libbonoboui2-0 libbonoboui2-common libcdaudio1 libde265 libenca0 libgnomecanvas2-0 libgnomecanvas2-common libgnomeui-0
libgnomeui-common libslv2-9 linux-headers-4.4.0-34 linux-headers-4.4.0-34-generic linux-headers-4.4.0-38
linux-headers-4.4.0-38-generic linux-headers-4.4.0-42 linux-headers-4.4.0-42-generic linux-headers-4.4.0-43
linux-headers-4.4.0-43-generic linux-headers-4.4.0-45 linux-headers-4.4.0-45-generic linux-headers-4.4.0-47
linux-headers-4.4.0-47-generic linux-image-4.4.0-34-generic linux-image-4.4.0-38-generic linux-image-4.4.0-42-generic
linux-image-4.4.0-43-generic linux-image-4.4.0-45-generic linux-image-4.4.0-47-generic linux-image-extra-4.4.0-34-generic
linux-image-extra-4.4.0-38-generic linux-image-extra-4.4.0-42-generic linux-image-extra-4.4.0-43-generic
linux-image-extra-4.4.0-45-generic linux-image-extra-4.4.0-47-generic
Use 'sudo apt autoremove' to remove them.
The following packages will be upgraded:
ghostscript ghostscript-x libgs9 libgs9-common python3-distupgrade ubuntu-release-upgrader-core ubuntu-release-upgrader-gtk
7 to upgrade, 0 to newly install, 0 to remove and 0 not to upgrade.
Need to get 5 257 kB of archives.
After this operation, 0 B of additional disk space will be used.
Do you want to continue? [Y/n] y
Get:1 http://fr.archive.ubuntu.com/ubuntu xenial-updates/main amd64 ubuntu-release-upgrader-gtk all 1:16.04.19 [9 366 B]
Get:2 http://fr.archive.ubuntu.com/ubuntu xenial-updates/main amd64 ubuntu-release-upgrader-core all 1:16.04.19 [29,3 kB]
Get:3 http://fr.archive.ubuntu.com/ubuntu xenial-updates/main amd64 python3-distupgrade all 1:16.04.19 [104 kB]
Get:4 http://fr.archive.ubuntu.com/ubuntu xenial-updates/main amd64 ghostscript amd64 9.18~dfsg~0-0ubuntu2.3 [40,9 kB]
Get:5 http://fr.archive.ubuntu.com/ubuntu xenial-updates/main amd64 ghostscript-x amd64 9.18~dfsg~0-0ubuntu2.3 [34,3 kB]
Get:6 http://fr.archive.ubuntu.com/ubuntu xenial-updates/main amd64 libgs9-common all 9.18~dfsg~0-0ubuntu2.3 [2 981 kB]
Get:7 http://fr.archive.ubuntu.com/ubuntu xenial-updates/main amd64 libgs9 amd64 9.18~dfsg~0-0ubuntu2.3 [2 059 kB]
Fetched 5 257 kB in 0s (15,5 MB/s)
(Reading database ... 522045 files and directories currently installed.)
Preparing to unpack .../ubuntu-release-upgrader-gtk_1%3a16.04.19_all.deb ...
Unpacking ubuntu-release-upgrader-gtk (1:16.04.19) over (1:16.04.18) ...
Preparing to unpack .../ubuntu-release-upgrader-core_1%3a16.04.19_all.deb ...
Unpacking ubuntu-release-upgrader-core (1:16.04.19) over (1:16.04.18) ...
Preparing to unpack .../python3-distupgrade_1%3a16.04.19_all.deb ...
Unpacking python3-distupgrade (1:16.04.19) over (1:16.04.18) ...
Preparing to unpack .../ghostscript_9.18~dfsg~0-0ubuntu2.3_amd64.deb ...
Unpacking ghostscript (9.18~dfsg~0-0ubuntu2.3) over (9.18~dfsg~0-0ubuntu2.2) ...
Preparing to unpack .../ghostscript-x_9.18~dfsg~0-0ubuntu2.3_amd64.deb ...
Unpacking ghostscript-x (9.18~dfsg~0-0ubuntu2.3) over (9.18~dfsg~0-0ubuntu2.2) ...
Preparing to unpack .../libgs9-common_9.18~dfsg~0-0ubuntu2.3_all.deb ...
Unpacking libgs9-common (9.18~dfsg~0-0ubuntu2.3) over (9.18~dfsg~0-0ubuntu2.2) ...
Preparing to unpack .../libgs9_9.18~dfsg~0-0ubuntu2.3_amd64.deb ...
Unpacking libgs9:amd64 (9.18~dfsg~0-0ubuntu2.3) over (9.18~dfsg~0-0ubuntu2.2) ...
Processing triggers for man-db (2.7.5-1) ...
Processing triggers for libc-bin (2.23-0ubuntu4) ...
Setting up python3-distupgrade (1:16.04.19) ...
Setting up ubuntu-release-upgrader-core (1:16.04.19) ...
Setting up ubuntu-release-upgrader-gtk (1:16.04.19) ...
Setting up libgs9-common (9.18~dfsg~0-0ubuntu2.3) ...
Setting up libgs9:amd64 (9.18~dfsg~0-0ubuntu2.3) ...
Setting up ghostscript (9.18~dfsg~0-0ubuntu2.3) ...
Setting up ghostscript-x (9.18~dfsg~0-0ubuntu2.3) ...
Processing triggers for libc-bin (2.23-0ubuntu4) ...