Disable unneeded kernel drivers (sound, gpu, wireless)

Note that disabling gpu seems to have killed the high-resolution console,
which is unfortunate.

New [previous] (old) sizes:

buildos-image     6,598,240      [6,631,136]    (6,316,352)
buildos-initrd    330,529,007  [350,467,663]  (332,280,629)

1 files changed, 19 insertions, 1 deletions

diff --git a/bootstrap b/bootstrap
index 72aeb5a..c202e4c 100755
--- a/bootstrap
+++ b/bootstrap
@@ -52,7 +52,7 @@ mirror="http://http.us.debian.org/debian/"
 base_pkgs="locales,klibc-utils,sudo"
 base_pkgs+=",udev,dbus,systemd-timesyncd,systemd-container"
 base_pkgs+=",kmod,linux-base,firmware-linux-free,irqbalance"
-base_pkgs+=",intel-microcode,amd64-microcode"
+base_pkgs+=",intel-microcode"  #,amd64-microcode
 base_pkgs+=",pciutils,usbutils,dmidecode,cpuid"
 base_pkgs+=",hdparm,btrfs-progs"
 base_pkgs+=",lm-sensors,smartmontools,linux-cpupower"
@@ -449,6 +449,24 @@ scripts/config --disable INIT_STACK_ALL_ZERO
 scripts/config --enable  DEBUG_INFO_NONE
 scripts/config --disable DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT
 
+# Disable sound subsystem/drivers.
+#
+sed -i -re '/^CONFIG_SND_.+/d' .config
+sed -i -re '/^CONFIG_SOUND_.+/d' .config
+scripts/config --disable CONFIG_SOUND
+scripts/config --disable CONFIG_SND
+
+# Disable GPU subsystem/drivers.
+#
+# NOTE: this seems to have killed the high-resolution console.
+#
+sed -i -re '/^CONFIG_DRM_.+/d' .config
+scripts/config --disable CONFIG_DRM
+
+# Disable wireless network drivers.
+#
+scripts/config --disable CONFIG_WLAN
+
 # Adjust kernel command line size limit.
 #
 sed -i -re 's/^(#define COMMAND_LINE_SIZE).+\$/\1 4096/' arch/x86/include/asm/setup.h