A new installation of Devuan daedalus, but I installed packages
as needed until now. Suddenly installation of packages fails.
For example I installed alsa-utils, but the installation was
broken. No sound, but more signifacantly the changes I made
to the alsamixer interface were not saved.

I purged alsa-utils and tried to reinstall it:

# apt-get install alsa-utils
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
The following package was automatically installed and is no longer
required:
linux-image-6.1.0-10-amd64
Use 'apt autoremove' to remove it.
The following additional packages will be installed:
libatopology2 libfftw3-single3
Suggested packages:
dialog libfftw3-bin libfftw3-dev
The following NEW packages will be installed:
alsa-utils libatopology2 libfftw3-single3
0 upgraded, 3 newly installed, 0 to remove and 0 not upgraded.
1 not fully installed or removed.
Need to get 0 B/1,954 kB of archives.
After this operation, 5,083 kB of additional disk space will be used.
Do you want to continue? [Y/n]

: Writing of cache data failed: No such file or directory
ldconfig: Can't stat /usr/local/lib/x86_64-linux-gnu: No such file or
directory
ldconfig: Path `/lib/x86_64-linux-gnu' given more than once
...dozens of lines then finally:...
ldconfig: Writing of cache data failed: No such file or directory
dpkg: error processing package libc-bin (--configure):
installed libc-bin package post-installation script subprocess
returned error exit status 1
Errors were encountered while processing:
libc-bin
E: Sub-process /usr/bin/dpkg returned an error code (1)

I frali to make much sense of this. Is it a library or cache that is
missing?

--

     Haines Brown