Bug#1056385: in unshare mode, ischroot returns false

[Johannes Schauer Marin Rodrigues]

Package: sbuild
Version: 0.85.0
Severity: normal

Hi,

steps to reproduce:

    --chroot-setup-commands='ischroot && echo "is chroot" || echo "is not 
chroot"

in contrast to mmdebstrap unshare mode, the contents of
/proc/1/mountinfo and /proc/self/mountinfo are the same in sbuild. See
https://sources.debian.org/src/debianutils/latest/ischroot.c/

Thanks!

cheers, josch