Bug#920353: debian-installer configuration on alpha

[jhcha54008 <jhcha54008@free.fr>]

Package: debian-installer
Version: 20190118
Severity: wishlist
Tags: patch
X-Debbugs-CC: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>, debian-alpha@lists.debian.org, debian-powerpc@lists.debian.org

Dear Maintainer,

- The debian installer currently downloads udebs 
from the buster/testing suite - which doesn't exist
for alpha and other non released architectures 
(powerpc is similar, see [1])

I propose to set

DEBIAN_RELEASE = unstable

in the alpha configuration file.

- It is required to include debian-ports-archive-keyring-udeb 
in netboot images to check Release signatures (it shouldn't
hurt in cdrom images too - to build a business-card cdrom or to 
download additional udebs)

Including pata-modules-${kernel:Version} would ease testing with
qemu.

Thanks in advance for your comments and for all your work on
the debian-installer.

Regards,
JH Chatenet

[1] : http://lists.debian.org/debian-powerpc/2019/01/msg00083.txt

diff -Naur a/build/config/alpha.cfg b/build/config/alpha.cfg
--- a/build/config/alpha.cfg
+++ b/build/config/alpha.cfg
@@ -10,6 +10,9 @@
 
 KEYRING = /usr/share/keyrings/debian-ports-archive-keyring.gpg
 
+# alpha is presently a non released architecture
+DEBIAN_RELEASE = unstable
+
 # include firmware files (qlogic, cciss,  radeon)
 # EXTRAFILES = `find /lib/firmware/ -type f`
 
diff -Naur a/build/pkg-lists/cdrom/alpha.cfg b/build/pkg-lists/cdrom/alpha.cfg
--- a/build/pkg-lists/cdrom/alpha.cfg
+++ b/build/pkg-lists/cdrom/alpha.cfg
@@ -16,3 +16,7 @@
 # Added optionally as udeb may not yet be available
 sata-modules-${kernel:Version} ?
 virtio-modules-${kernel:Version} ?
+
+debian-ports-archive-keyring-udeb
+
+pata-modules-${kernel:Version}
diff -Naur a/build/pkg-lists/netboot/alpha.cfg b/build/pkg-lists/netboot/alpha.cfg
--- a/build/pkg-lists/netboot/alpha.cfg
+++ b/build/pkg-lists/netboot/alpha.cfg
@@ -26,3 +26,5 @@
 serial-modules-${kernel:Version} ?
 usb-serial-modules-${kernel:Version} ?
 uinput-modules-${kernel:Version} ?
+
+debian-ports-archive-keyring-udeb