Category Archives: Servers

Linux : R1Soft failed backup of LVM configuration

Having the following error while executing a R1Soft backup on a Linux server? Failed backup of LVM configuration Failed to execute command ‘lvm.static pvs -o pv_fmt,pv_uuid,dev_size,pv_name,pv_mda_free,pv_mda_size,pv_all,seg_all,pvseg_all,vg_all,lv_all –nameprefixes –noheadings –units b –nosuffix –unquoted’ This seem to be related to the latest version. Apparently Idera are aware of the issue and working on a permanent fix. In… Read More »

Windows : Convert Server 2016 Standard to Datacenter

Windows evolved a lot in the last years, what was once a headache for system administrators is now behind us since a few years. Microsoft now allow to convert a installed Windows Server 2016 Standard to Datacenter without having to re-install. To achieve this, you will need to have in hand your Windows Server 2016… Read More »

Windows : BSOD 0x0000007E (0xFFFFFFFFC0000005, 0xFFFFF880018C9836, 0xFFFFF880009A9008, 0xFFFFF880009A8860)

I had the luck of experiencing the following blue screen on a Windows Server 2008 R2 domain controller server at boot lately : *** STOP: 0x0000007E (0xFFFFFFFFC0000005, 0xFFFFF880018C9836, 0xFFFFF880009A9008, 0xFFFFF880009A8860) Related facts with this server : – Haven’t been rebooted since two years – Windows Updates haven’t been run for two years – Running minimalistic… Read More »

Linux : Apache Invalid command ‘ProxyPreserveHost’

Having the following error output trying to start, restart or do a configtest on Apache server? Invalid command ‘ProxyPreserveHost’, perhaps misspelled or defined by a module not included in the server configuration This is likely caused because mod_proxy module is not present or disabled. To enable it, look out for the following in the main… Read More »

Linux : MySQL table is marked as crashed and should be repaired

Slow MySQL server, with very high load and consuming a lot of I/O without any particular reason? If you see the following error when looking at the MySQL log file (/var/lib/mysql.log), then now you know why! [ERROR] /usr/libexec/mysqld: Table ‘./database_name/table_name’ is marked as crashed and should be repaired Fortunately, this issue is probably easy fixable… Read More »

Linux : perl: warning: Setting locale failed

You probably noticed the following output on your console after logging to your newly installed CloudLinux server : perl: warning: Setting locale failed. perl: warning: Please check that your locale settings: LANGUAGE = (unset), LC_ALL = (unset), LC_CTYPE = “UTF-8”, LANG = “en_US.UTF-8” are supported and installed on your system. perl: warning: Falling back to… Read More »

Linux : CloudLinux installation error “You have third-party kernel module rpm installed”

Ending up with the following error trying to install CloudLinux? You have third-party kernel module rpm installed. It’s not compatible with CloudLinux kernel. Please contact CloudLinux support at https://helpdesk.cloudlinux.com In my case, this was because of the “kmod-vmware-tools-vmxnet3” module, since it was on a VMware guest machine. Since removing it isn’t an option and I… Read More »