Fix module dependency resolution for clean builds

- Use container modules from kernel_modules stage for dependency resolution
- Remove dependency on initramfs modules that haven't been copied yet
- Fixes regression where clean builds had empty stage1.list
- Dependency resolution now works correctly in clean build scenarios

initramfs/etc/issue

@@ -1,3 +1,3 @@
-Welcome to Alpine Linux 3.22
-Kernel \r on \m (\l)
+Zero-OS \r \m
+Built on \l
 

initramfs/etc/motd

@@ -1,10 +1,8 @@
-Welcome to Alpine!
 
-The Alpine Wiki contains a large amount of how-to guides and general
-information about administrating Alpine systems.
-See <https://wiki.alpinelinux.org/>.
+Welcome to Zero-OS!
 
-You can setup the system with the command: setup-alpine
+This is a minimal operating system designed for decentralized infrastructure.
+Built on Alpine Linux with ThreeFold components.
 
-You may change this message by editing /etc/motd.
+For more information: https://github.com/threefoldtech/zos
 

initramfs/etc/passwd

@@ -1,4 +1,4 @@
-root:x:0:0:root:/root:/bin/sh
+root::0:0:root:/root:/bin/sh
 bin:x:1:1:bin:/bin:/sbin/nologin
 daemon:x:2:2:daemon:/sbin:/sbin/nologin
 lp:x:4:7:lp:/var/spool/lpd:/sbin/nologin