[Bug 1804334] Re: Live/overlayfs apparmor DENIED open "upper/etc/mysql/conf.d" mysql-server-5.7 package post-installation script subprocess returned error exit status 1

[Paride Legovini]

** Also affects: casper (Ubuntu)
   Importance: Undecided
       Status: New

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Title:
  Live/overlayfs apparmor DENIED open "upper/etc/mysql/conf.d" mysql-
  server-5.7 package post-installation script subprocess returned error
  exit status 1

Status in casper package in Ubuntu:
  New
Status in mysql-5.7 package in Ubuntu:
  Confirmed

Bug description:
  This occurs when installing on an overlayfs, typically in the
  installer Try ... live environment when apparmor denies a read of the
  mysql configuration:

  audit: type=1400 audit(1542755429.021:244): apparmor="DENIED"
  operation="open" info="Failed name lookup - disconnected path"
  error=-13 profile="/usr/sbin/mysqld" name="upper/etc/mysql/conf.d"
  pid=7525 comm="mysqld" requested_mask="r"

  this causes

  /usr/share/mysql/mysql-systemd-start

  to fail and return exit code 1 when called during the POSTINST phase
  of package configuration.

  ----

  I was installing mysql-server but error came.

  I have zero knowledge about linux and ubuntu

  ProblemType: Package
  DistroRelease: Ubuntu 18.04
  Package: mysql-server-5.7 5.7.24-0ubuntu0.18.04.1
  ProcVersionSignature: Ubuntu 4.15.0-29.31-generic 4.15.18
  Uname: Linux 4.15.0-29-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7.2
  Architecture: amd64
  CasperVersion: 1.394
  Date: Tue Nov 20 23:10:29 2018
  ErrorMessage: installed mysql-server-5.7 package post-installation script subprocess returned error exit status 1
  LiveMediaBuild: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725)
  Logs.var.log.daemon.log:

  MySQLConf.etc.mysql.conf.d.mysql.cnf: [mysql]
  MySQLConf.etc.mysql.conf.d.mysqldump.cnf:
   [mysqldump]
   quick
   quote-names
   max_allowed_packet	= 16M
  MySQLConf.etc.mysql.mysql.conf.d.mysqld_safe_syslog.cnf:
   [mysqld_safe]
   syslog
  MySQLVarLibDirListing: ['ib_buffer_pool', 'debian-5.7.flag', 'sys', 'performance_schema', 'mysql', 'auto.cnf', 'ib_logfile0', 'ib_logfile1', 'ibdata1']
  ProcCmdline: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/hostname.seed cdrom-detect/try-usb=true noprompt floppy.allowed_drive_mask=0 ignore_uuid boot=casper quiet splash ---
  Python3Details: /usr/bin/python3.6, Python 3.6.5, python3-minimal, 3.6.5-3ubuntu1
  PythonDetails: /usr/bin/python2.7, Python 2.7.15rc1, python-minimal, 2.7.15~rc1-1
  RelatedPackageVersions:
   dpkg 1.19.0.5ubuntu2
   apt  1.6.3
  SourcePackage: mysql-5.7
  Title: package mysql-server-5.7 5.7.24-0ubuntu0.18.04.1 failed to install/upgrade: installed mysql-server-5.7 package post-installation script subprocess returned error exit status 1
  UpgradeStatus: No upgrade log present (probably fresh install)

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