# Installation hangs under Jessie **URL:** \ **Category:** Percona Server for MySQL 5.7\ **Created:** [March 13, 2017, 8:38am UTC](https://forums.percona.com/t/installation-hangs-under-jessie/5475 "2017-03-13T08:38:05Z")\ **Posts on this page:** 1\ **Page:** 1
**Author:** ![smares](https://avatars.discourse-cdn.com/v4/letter/s/3da27b/32.png) [@smares](https://forums.percona.com/u/smares)\ **Post date:** [March 13, 2017, 8:38am UTC](https://forums.percona.com/t/installation-hangs-under-jessie/5475/1 "2017-03-13T08:38:05Z")
The installation of Percona Server 5.7 from the apt repository hangs under Debian Jessie and cannot even be cancelled by Ctrl+C. Once the installation starts, I am asked for the root password and its confirmation, then the installer continues and suddenly asks for a password: ```auto smares@smares:/etc$ sudo apt-get install percona-server-server-5.7 Reading package lists... Done Building dependency tree Reading state information... Done The following extra packages will be installed: percona-server-client-5.7 percona-server-common-5.7 The following NEW packages will be installed: percona-server-client-5.7 percona-server-common-5.7 percona-server-server-5.7 0 upgraded, 3 newly installed, 0 to remove and 0 not upgraded. Need to get 0 B/26,1 MB of archives. After this operation, 206 MB of additional disk space will be used. Do you want to continue? [Y/n] Preconfiguring packages ... Selecting previously unselected package percona-server-common-5.7. (Reading database ... 25308 files and directories currently installed.) Preparing to unpack .../percona-server-common-5.7_5.7.17-11-1.jessie_amd64.deb ... Unpacking percona-server-common-5.7 (5.7.17-11-1.jessie) ... Selecting previously unselected package percona-server-client-5.7. Preparing to unpack .../percona-server-client-5.7_5.7.17-11-1.jessie_amd64.deb ... Unpacking percona-server-client-5.7 (5.7.17-11-1.jessie) ... Processing triggers for man-db (2.7.0.2-5) ... Setting up percona-server-common-5.7 (5.7.17-11-1.jessie) ... Selecting previously unselected package percona-server-server-5.7. (Reading database ... 25430 files and directories currently installed.) Preparing to unpack .../percona-server-server-5.7_5.7.17-11-1.jessie_amd64.deb ... Unpacking percona-server-server-5.7 (5.7.17-11-1.jessie) ... Processing triggers for systemd (215-17+deb8u6) ... Processing triggers for man-db (2.7.0.2-5) ... Setting up percona-server-client-5.7 (5.7.17-11-1.jessie) ... Setting up percona-server-server-5.7 (5.7.17-11-1.jessie) ... Password: ``` No matter what I enter there, nothing happens. I assume this is related to the fact that I disabled the ability to su without password by commenting out ```auto auth sufficient pam_rootok.so ``` in /etc/pam.d/su and uncommenting ```auto auth required pam_wheel.so ``` .