this is on a fresh boot after installing a LAMP stack.

[Chad Meyers]

This mysql-server install is for local dev and didn't go well with an empty password for root. I had to purge/uninstall/remove mysql-server and reinstall setting a password. The db is untested other than adding phpMyAdmin.

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: mysql-server-5.7 5.7.20-0ubuntu0.16.04.1
ProcVersionSignature: Ubuntu 4.10.0-38.42~16.04.1-generic 4.10.17
Uname: Linux 4.10.0-38-generic x86_64
NonfreeKernelModules: nvidia_uvm nvidia
ApportVersion: 2.20.1-0ubuntu2.10
Architecture: amd64
Date: Sat Nov 4 11:01:11 2017
ErrorMessage: subprocess installed post-installation script returned error exit status 1
InstallationDate: Installed on 2017-08-12 (85 days ago)
InstallationMedia: Ubuntu 16.04.2 LTS "Xenial Xerus" - Release amd64 (20170215.2)
KernLog:

Logs.var.log.daemon.log:

MySQLConf.etc.mysql.mysql.conf.d.mysqld_safe_syslog.cnf:
 [mysqld_safe]
 syslog
MySQLVarLibDirListing: ['ib_buffer_pool', 'performance_schema', 'phpmyadmin', 'ibtmp1', 'ib_logfile1', 'mysql', 'debian-5.7.flag', 'sys', 'ib_logfile0', 'auto.cnf', 'ibdata1']
ProcCmdline: BOOT_IMAGE=/boot/vmlinuz-4.10.0-38-generic root=UUID=6d444c15-1fc5-4b57-8e49-06ea7c1dd2c7 ro quiet splash
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.2
 apt 1.2.24
SourcePackage: mysql-5.7
Title: package mysql-server-5.7 5.7.20-0ubuntu0.16.04.1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
UpgradeStatus: No upgrade log present (probably fresh install)

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make this software better. This particular crash has already been reported and is a duplicate of bug #1729723, so is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.