Create swap from File on BTRFS Filesystem

I had a server run out of space recently, to the point that it couldn’t complete the yum update. This server ended up corrupting a yum packages database.

Here’s how corrupted YUM database looks

Correctly called rpmdb, packaged database used by YUM looks like this when it can’t be opened:

root@s3:/ # yum update
error: db5 error(11) from dbenv->open: Resource temporarily unavailable
error: cannot open Packages index using db5 - Resource temporarily unavailable (11)
error: cannot open Packages database in /var/lib/rpm

Error: rpmdb open failed

Rebuilding RPM DB

The fix is to rebuild the RPM database, like this:

root@s3:/ # rpm --rebuilddb

and just to try things, do the same yum update – it should work now:

root@s3:/backup/linux # yum update
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile

- base:
- epel:
- extras:
- updates:
  Resolving Dependencies

See Also

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I'm a principal consultant with Tech Stack Solutions. I help with cloud architectrure, AWS deployments and automated management of Unix/Linux infrastructure. Get in touch!

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