Hi Tobias,
newuidmap / newgidmap consult /etc/nsswitch.conf to decide where to get information on allowed sbuids from. The /etc/subuid and /etc/subgid files are only used if the subid filed in /etc/nsswitch.conf is either unset or set to files (see subuid(5)). Otherwise the information is retrived by calling some function in a shared object file derived from the subid value in /etc/nsswitch.conf.
does this change by Simone Caronni do what you ask? https://gitlab.mister-muffin.de/josch/mmdebstrap/commit/966c51cec2b9ccd87707cbf305a0719d63beacec Thanks! cheers, josch
