Error: rpmdb open failed
The “rpmdb open failed” error message is mostly received when the rpm databases __db.00* located under /var/lib/rpm directory are corrupted. This results in a “error: cannot open Packages database” message while installation/updatation of a package via yum.
[/var/lib/rpm]# ls -l *db*
-rw-r–r– 1 root root 0 Jul 20 21:45 __db.000
-rw-r–r– 1 root root 24576 Aug 4 09:25 __db.001
-rw-r–r– 1 root root 1318912 Aug 4 09:25 __db.002
-rw-r–r– 1 root root 450560 Aug 4 09:25 __db.003
The common fix is to delete the rpm databases and run rebuilddb, like
yum clean all
rm -f /var/lib/rpm/__db*
rpm –rebuilddb
yum update
However, in case of a VPS, yum may still not work with rebuilding rpm database and you have to try create a /dev/urandom device. Login to your VPS and execute
rm /dev/urandom
mknod -m 644 /dev/urandom c 1 9
[/dev]# ls -ld urandom
cr–r–r– 1 root root 1, 9 Jul 19 10:27 urandom
To fix the problem permanently, login to Hardware Node and execute:
vzctl stop VEID
mknod –mode 644 /vz/private/VEID/fs/root/dev/urandom c 1 9
vzctl start VEID
defpackagemng failed: Access is denied.
If you are getting the following error when logging into Plesk control panel (Windows) :
DefPackageMng() constructor failed: defpackagemng failed: Access is denied. Error code 5) at CreateProcess ‘C:\WINDOWS\system32\cmd.exe /c “”C:\Plesk\admin\bin\defpackagemng.exe” –get”‘
at execUtil C:\Plesk\admin\bin\defpackagemng.exe –get on C:\Plesk\admin(PleskSrvClient::execUtil line 420)at execute console command –get(vconsoleapp::start line 128)
at execute C:\Plesk\/admin/bin/defpackagemng –get(vconsoleapp::run line 138)
Solution:
This error occurs when Plesk Control Panel service Apache can’t access to C:\Windows\System32\cmd.exe. This may happen when administrator manually changes permissions on file system. User SERVICE should have Read+Execute; Read on the file.
>> The following permissions should be set on ‘cmd.exe’ to make server work properly:
Administrators - Full Control
System - Full Control
Service - Read+Execute; Read
Interactive - Read+Execute; Read
Restart the plesk service. Try login again.