[sane-devel] libsane-common:i386 is missing in PPA with Ubuntu 20.04

[Ulf Zibis]

Am 06.11.21 um 21:00 schrieb Ulf Zibis:
>
> Unfortunately I get a message which I do not understand, when I try to reinstall:
> $ LC_ALL=C sudo apt --reinstall install libsane-common libsane1
> Reading package lists... Done
> Building dependency tree
> Reading state information... Done
> Reinstallation of libsane-common is not possible, it cannot be downloaded.
> Reinstallation of libsane1 is not possible, it cannot be downloaded.
> 0 upgraded, 0 newly installed, 0 to remove and 1 not upgraded.
I now could successfully reinstall the release versions by setting an apt pinning:
Package: libsane*
Pin: version 1.0.32-focal0
Pin-Priority: 1000

But I still get weird messages when I try to install the 32 bit version of sane, which I want to use by Wine in 32 bit mode.

$ LC_ALL=C sudo apt -s -f install sane-utils:i386
Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
  ca-certificates-java : Depends: ca-certificates (>= 20121114) but it is not going to be installed
  dconf-gsettings-backend : Depends: dconf-service (>= 0.36.0-1)
                            Depends: dconf-service (< 0.36.0-1.1~)
  dictionaries-common : Depends: libtext-iconv-perl but it is not going to be installed
  sane-utils:i386 : Depends: libsane1:i386 (>= 1.0.27)
E: Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.

I don't understand, why apt doesn't install the needed dependencies when installing 32 bit packages.. If I manually include the missing dependencies, there is no end of missings:
$ LC_ALL=C sudo apt -s install libperl5.30:i386 libsnmp35:i386 snmp:i386 libpoppler97:i386 libpoppler-glib8:i386 libsane1:i386 sane-utils:i386
Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
  ca-certificates-java : Depends: ca-certificates (>= 20121114) but it is not going to be installed
  dconf-gsettings-backend : Depends: dconf-service (>= 0.36.0-1)
                            Depends: dconf-service (< 0.36.0-1.1~)
  dictionaries-common : Depends: libtext-iconv-perl but it is not going to be installed
E: Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.

-Ulf