Bug#891009: debootstrap: wrongly falls back to https://deb.debian.org when try to create Ubuntu chroot

[Hideki Yamane <henrich@iijmio-mail.jp>]

Package: debootstrap
Severity: normal
Vesrion: 1.0.56

Hi,

 If you try "debootstrap <ubuntu codename> <dir>", it automatically falls
 back to pre-defined HTTPS mirror. 

> keyring () {
>         if [ -z "$KEYRING" ]; then
>                 if [ -e "$1" ]; then
>                         KEYRING="$1"
>                 elif [ -z "$DISABLE_KEYRING" ]; then
>                         if [ -n "$DEF_HTTPS_MIRROR" ] && [ -z "$USER_MIRROR" ] && [ -z "$FORCE_KEYRING" ]; then
>                                 info KEYRING "Keyring file not available at %s; switching to https mirror %s" "$1" "$DEF_HTTPS_MIRROR"
>                                 USER_MIRROR="$DEF_HTTPS_MIRROR"
>                         else

 But defined DEF_HTTPS_MIRROR is https://deb.debian.org, it fails with
 a bit wrong error message.	

> $ sudo debootstrap artful artful
> I: Keyring file not available at /usr/share/keyrings/ubuntu-archive-keyring.gpg; switching to https mirror https://deb.debian.org/debian
> I: Retrieving InRelease 
> I: Retrieving Release 
> E: Failed getting release file https://deb.debian.org/debian/dists/artful/Release

 Expected behavior is
  - fails with just "Keyring file not available" error message
  - or falls back to Ubuntu https mirror.


 And, https assures only secure *connection*, not integrity of *contents*
 as GPG does, so this behavior is not good, IMO. 


-- 
Regards,

 Hideki Yamane     henrich @ debian.org/iijmio-mail.jp