On Mon, 16 Nov 2020 00:28:57 +0100 Johannes Schauer wrote: [...] > Do you have the time to investigate further on this issue?
As you can see, not much time, unfortunately! :-( And I am sad about this, believe me. > This does not seem > to be a problem of initramfs-tools or a problem of fakechroot not being > enabled > but a weird problem with fakechroot. I don't know whether I can get around to investigating the fakechroot failure, but, in the meanwhile I noticed that #898446 has been closed and a decision has been made. It was apparently concluded that enabling "kernel.unprivileged_userns_clone=1" by default is better than disabling it by default. As I have [previously said], I am not brave enough (and knowledgeable enough on this topic) to diverge from the default Debian settings. [previously said]: <https://bugs.debian.org/944485#26> However, now the Debian default has changed: $ /sbin/sysctl kernel.unprivileged_userns_clone kernel.unprivileged_userns_clone = 1 As a consequence, I feel like giving the "unshare" mode of mmdebstrap a try. I tried again with my work-in-progress script: $ cd ~/Downloads/ $ mmdebstrap-autopkgtest-qemu 8GiB I: automatically chosen mode: unshare I: chroot architecture amd64 is equal to the host's architecture I: automatically chosen format: tar I: using ${HOME}/Downloads/mmdebstrap.43LR3zoGLq as tempdir E: cannot create ${HOME}/Downloads: Permission denied; cannot create ${HOME}/Downloads/mmdebstrap.43LR3zoGLq: Permission denied; cannot create ${HOME}/Downloads/mmdebstrap.43LR3zoGLq//etc: Permission denied; cannot create ${HOME}/Downloads/mmdebstrap.43LR3zoGLq//etc/apt: Permission denied; cannot create ${HOME}/Downloads/mmdebstrap.43LR3zoGLq//etc/apt/apt.conf.d: Permission denied W: listening on child socket failed: I: removing tempdir ${HOME}/Downloads/mmdebstrap.43LR3zoGLq... E: unable to chdir() to parent directory of ${HOME}/Downloads/mmdebstrap.43LR3zoGLq: Permission denied E: remove_tree failed OK, this does not work at all. I tried to read the relevant section in the mmdebstrap(1) man page, and there's some recommendation about an --unshare-helper option. But to be honest, I failed to understand what I am supposed to do with this --unshare-helper option. Could you please clarify? Please remember that my script exports TMPDIR='.', in order to avoid using a tightly sized /tmp partition, where several GB of data would definitely not fit. Thanks for your time and patience. -- http://www.inventati.org/frx/ There's not a second to spare! To the laboratory! ..................................................... Francesco Poli . GnuPG key fpr == CA01 1147 9CD2 EFDF FB82 3925 3E1C 27E1 1F69 BFFE
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