GDB Missing separate debuginfos Fedora 22

I’m trying to debug a 32-bit ELF with GDB on Fedora 22, but I keep getting the following message:

Missing separate debuginfos, use: dnf debuginfo-install glibc-2.21-5.fc22.i686

I did exacty that — I ran:

sudo dnf debuginfo-install glibc-2.21-5.fc22.i686

I get that all dependencies are resolved and that there’s nothing to do. Namely, this message:

Last metadata expiration check performed 0:00:06 ago on Sun Sep 13 00:36:35 2015.
Dependencies resolved.
Nothing to do.
Complete!

But even then, when I try running the same file in gdb, I get the exact same warning message. How do I satisfy the warning?

Answer

How do I satisfy the warning?

First, unless you need to debug glibc itself, you don’t have to satisfy the warning, you can ignore it.

Second, your problem is likely caused by something in your .gdbinit, such as setting debug-file-directory incorrectly. Try starting GDB with gdb -nx .... If that fixes the warning, that would prove your .gdbinit is the cause.