I write down my problem and how I solved it and what I suggest to developers for the future. 2 days ago I had a terrible HDD crash. OK, I said, it was a PLESk 11.0.x version, I have backups, so I will restore a new system, install PLESK 11.0.9 (latest) and I will restore directories, etc from backup. I do backup to /database in SQL format /var/www/vhosts/ /etc/ in the future I will add as well /usr/local/psa/ /var/named/ Seems if was OK for PLESK 9 and 10, not enough for PLESK 11. After I installed new OS and PLESK, I have restored first 2 databases. 1. psa - to have all info from old DB (domains etc) 2. mysql - to have passwords and same data like on old server. Then I have restored all data for /var/www/vhosts/ - took me a while, it was 250GB :-(( almost a day. I have tried to see what needed to restore from /etc/ and I have done restore for /etc/shadow , /etc/passwd , /etc/group files. Of course on a restart of PLESK and apache, apache did not started, so I tried. /usr/local/psa/admin/bin/httpdmng --reconfigure-server to get all OK then /usr/local/psa/admin/bin/httpdmng --reconfigure-all Here I got an issue, what I suggest for developers to fix. Because my backup was 2 days ago, meantime some people created domains/subdomains. This means in my backup that folders did not existed. On reconfigure-all I got errors that folder /var/www/vhosts/domain.com/conf dir not exist. yes did not existed /var/www/vhosts/domain.com so cannot be created nothing in /var/www/vhosts/domain.com/conf/ It was not hard to create with mkdir -p /var/www/vhosts/domain.com/conf and restart the reconfigure, but because of 300 domains, always take a while. Seems reconfigure get in batch files X number of domains and do it then next domains. This is OK, but always start from scratch. What I suggest to developers to create this dir automatically with mkdir -p and then can go forward. Also there is --reconfigure-batch <batch-source> command, but no documentation found on how to use that batch file. cause then I should create batch files in 20-30 domains and check it like that and not so time consuming. I have tried to add the array but not work, again, no DOC on how to create that file. :-(( OK, after I have redone this, all seems OK. Also I have tried to redo the named.conf, nothing to find to restore automaticaly, dunno if reconfigure-all create it or not. If someone knows a command to restore all zones, let me know please. After this I restored also mails with /usr/local/psa/admin/sbin/mchk, this also take a while, but all emails was restored fine. So far we have now emails, websites. I create a backup with automysqlbackup for all database daily. All DB was in separate folder (dbnamefolder) and inside the SQL. So it was easy to write a small shell file and copy all folders in /var/lib/mysql and then run all SQL files with a batch file. BINGO now we have DB as well. Because all was done, I have tried to get into PLESK. I think something was wrong on DB or something, cause not started and then I applied a bootstrap. WRONG :-( This crashed all my PLESK. Now I have - 500 - Internal Server Error So what have tried, to see how can I install PLESk server again, looked for RPM files, like it was in PLESK 9 or 10 in /root/PARALLELS folder. The problem that PLESK 11 have only INF files here and MU files, no RPM. So I cannot force a reinstall to fix issues. usually in PLESK 9 when nothing worked, a forced RPM install fixed issues. If anyone know how can I grab from Parallels site the RPM, to force a PSA reinstall, base at least ... As for developers, dunno what was the reason to not offer this RPM files, but at least you should have a way to get RPM in some cases (with some tools) and resolve some problems offline. Hope this problems and solutions will help to some people and not waste time like I have done 2 days :-( LATER EDIT: Seems that the problem with PLESK start is that /etc/psa/private/secret_key is wrong and this is why PLESK does not start. I wondering why I cannot just regenerate with a tool. I try now to boostrap repair and hope will help. LATER EDIT 2: Seems that boostraper does not regenerate the secret key even if I delete it. Not also autoinstaller :-( LATER EDIT 3: http://forum.parallels.com/showthread.php?t=98498 Edit: Before: "max-procs" => 1, "min-procs" => 0, After: "max-procs" => 1, "min-procs" => 1, Restart CP and work. LATER EDIT 3: for i in `mysql -uadmin -p\`cat /etc/psa/.psa.shadow\` psa -Ns -e "select name from domains"`; do /usr/local/psa/bin/domain --update-php-settings $i -settings 1.txt; done for i in `mysql -uadmin -p\`cat /etc/psa/.psa.shadow\` psa -Ns -e "select name from domains"`; do /usr/local/psa/bin/domain --update-php-settings $i -additional-settings 2.txt; done 1.txt session.save_path=/tmp error_reporting=E_COMPILE_ERROR|E_RECOVERABLE_ERROR|E_ERROR|E_CORE _ERROR 2.txt date.timezone = "Europe/Berlin"