apt-get - cannot get exclusive lock on /var/lib/rpm/Packages

[Maniaman]

After doing an upgrade on most of the system using synaptic, I am no longer able to use apt-get from the command line, and synaptic will no longer load correctly.

When using apt-get fromt he command line I get this error and then it hangs.

warning: cannot get exclusive lock on /var/lib/rpm/Packages

Attempting to run synaptic causes it to opent he synaptic gui, but everything stays grayed out, and it basically hangs.

How would I fix this?

[Void Main]

What OS/version? What repos are you using? What packages were upgraded (check /var/cache/apt/archives)? The message you quote usually happens if either A) you are not root or B) another program has a lock on the database (rpm, apt, etc). Do a "ps auxwww | egrep 'rpm|apt'" and see what pops up. Kill any hung processes.

[ZiaTioN]

A) you are not root or

That is the only time I have ever seen this error.

[Void Main]

A) you are not root or

That is the only time I have ever seen this error.

It will also happen if you try and do more than one rpm command at a time other than just a query. The rpm command puts a lock on the RPM database when you do an erase, install, or update and if you try and run another rpm command while one of those are in progress you'll get that error. There have also been bugs in previous versions that wouldn't clean up the lock files properly which can cause it:

http://voidmain.is-a-geek.net/redhat/fe ... round.html

[Maniaman]

Seems to be working now after doing a killall -9 apt-get and the stuff in the rpm bug workaround page.

edit: spoke too soon, the error popped up again, but stuff will install now.