Hi Alberto and thanks for this bug report.
I think the problem you are facing upgrading your system is due to files
installed on the system that are not part of Ubuntu. These files are
/usr/lib/libbit4*, see the DpkgTerminalLog attached to the bug report:
/sbin/ldconfig.real: Cannot mmap file /usr/lib/libbit4npki.so.rc.
/sbin/ldconfig.real: /usr/lib/libbit4ipki.so.conf is not an ELF file - it has
the wrong magic bytes at the start.
/sbin/ldconfig.real: Cannot mmap file /usr/lib/libbit4ipki.so.rc.
/sbin/ldconfig.real: Cannot mmap file /usr/lib/libbit4xpki.so.rc.
/sbin/ldconfig.real: /usr/lib/libbit4opki.so.conf is not an ELF file - it has
the wrong magic bytes at the start.
/sbin/ldconfig.real: /usr/lib/libbit4xpki.so.conf is not an ELF file - it has
the wrong magic bytes at the start.
/sbin/ldconfig.real: Cannot mmap file /usr/lib/libbit4opki.so.rc.
/sbin/ldconfig.real: /usr/lib/libbit4npki.so.conf is not an ELF file - it has
the wrong magic bytes at the start.
My wild guess is that you installed those manually to enable support for
a smartcard or smartcard reader, which may have worked when your system
was still running Trusty, but are not compatible with Bionic. We can't
however offer support for this scenario, as we only control what is
shipped via the official Ubuntu repositories.
(I don't know if this broken upgrade is also causing Firefox to stop or
slow down, a problem you mention in the bug description. From the log
files I only see the libbit4* related issue.)
I'm setting the status of this bug report to Incomplete for the moment.
If you agree this is an issue specific to your system and not a bug in
Ubuntu please change its status to Invalid. Otherwise, if you still
believe this is a bug in Ubuntu, please comment back and set the status
back to New, we'll look at it again. Thanks!
** Changed in: bind9 (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1911402
Title:
package libdns-export162 1:9.10.3.dfsg.P4-8ubuntu1.17 failed to
install/upgrade: il pacchetto si trova in uno stato di inconsistenza
critico: è consigliato installarlo nuovamente prima di tentare la
configurazione.
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