rebuild from cdrom is broken in elbe 1.9.x

[linutronix]

rebuild from cdrom is broken in elbe 1.9.x

[manut]

behaviour changed a bit; can't create initvm:

00:03:16.075 Loading additional components ... 25%... 50%... 75%... 100%
00:03:17.698 Starting up the partitioner ... 13%... 22%... 31%... 40%... 50%... 63%... 72%... 81%... 90%... 100%
00:03:19.470 Guided partitioning ... 20%... 40%... 60%... 80%
00:03:20.939 Partitions formatting ... 33%
00:04:08.518 Installing the base system ... 17%... 20%... 30%... 40%... 50%... 60%... 70%
00:16:32.996 Install the base system
00:16:33.004 -----------------------
00:16:33.008
00:16:33.009 No installable kernel was found in the defined APT sources.
00:16:33.028
00:16:33.029 You may try to continue without a kernel, and manually install your own kernel
00:16:33.051 later. This is only recommended for experts, otherwise you will likely end up
00:16:33.070 with a machine that doesn't boot.
00:16:33.081 Continue without installing a kernel?
00:16:33.094 1: Yes 2: No [*]

[manut]

this is resolved, by copying the keyring with the elbe create_project generated gpg key to the bin-cdrom.iso, moving it to the d-i initrd during 'elbe initvm create' and adding a hook script to the installer to import the key before doing debootstrap. This is currently done in devel/elbe-2.0 as of today.

However we have another issue with the generated key if building the target image inside the initvm:

mount: /dev/loop0 is write-protected, mounting read-only

running cmd +debootstrap --include=apt-listchanges --arch=amd64 "jessie" "/var/c
ache/elbe/1574c413-00b6-4605-abe1-4877941037bd/chroot" "file:///var/cache/elbe/1
574c413-00b6-4605-abe1-4877941037bd/chroot/cdrom/targetrepo"+
574c413-00b6-4605-abe1-4877941037bd/chroot/cdrom/targetrepo"+

I: Retrieving Release
I: Retrieving Release.gpg
I: Checking Release signature
E: Release signed by unknown key (key id 407E42BADC747B99)

Command failed with errorcode 1
/cdrom"+

---

Build failed !!!

Debootstrap failed to install the base rootfilesystem.
Probable cause might be:

• Problems with Internet Connection
• Broken mirrors

Conclusion: recreating the initvm is working now, building the target image not

[manut]

the above is fixed since cdbb9f6

but rebuilding is not perfect. see new bug