saving uncommitted changes in /etc prior to emerge run

hprofile/example-profiles/boot/files/etc/modules.d/alsa.bak

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+# Alsa 0.9.X kernel modules' configuration file.
+# $Header: /home/cvsroot/gentoo-x86/media-sound/alsa-utils/files/alsa-modules.conf-rc,v 1.1 2003/08/05 21:07:55 johnm Exp $
+
+# ALSA portion
+alias char-major-116 snd
+# OSS/Free portion
+alias char-major-14 soundcore
+
+##
+## IMPORTANT:
+## You need to customise this section for your specific sound card(s)
+## and then run `update-modules' command.
+## Read alsa-driver's INSTALL file in /usr/share/doc for more info.
+##
+##  ALSA portion
+## alias snd-card-0 snd-interwave
+## alias snd-card-1 snd-ens1371
+##  OSS/Free portion
+## alias sound-slot-0 snd-card-0
+## alias sound-slot-1 snd-card-1
+##
+
+# OSS/Free portion - card #1
+alias sound-service-0-0 snd-mixer-oss
+alias sound-service-0-1 snd-seq-oss
+alias sound-service-0-3 snd-pcm-oss
+alias sound-service-0-8 snd-seq-oss
+alias sound-service-0-12 snd-pcm-oss
+##  OSS/Free portion - card #2
+## alias sound-service-1-0 snd-mixer-oss
+## alias sound-service-1-3 snd-pcm-oss
+## alias sound-service-1-12 snd-pcm-oss
+
+alias /dev/mixer snd-mixer-oss
+alias /dev/dsp snd-pcm-oss
+alias /dev/midi snd-seq-oss
+
+# Set this to the correct number of cards.
+options snd cards_limit=1

hprofile/example-profiles/boot/files/etc/modules.d/alsa.dualboot

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+# Alsa modules and configuration
+
+# Soundcore support
+alias char-major-116 snd
+alias char-major-14 soundcore
+
+options snd major=116 cards_limit=1
+
+# Intel i8x0 (i810)
+alias snd-card-0 snd-intel8x0
+alias sound-slot-0 snd-card-0
+alias sound-service-0-0 snd-mixer-oss
+alias sound-service-0-1 snd-seq-oss
+#alias sound-service-0-3 snd-pcm-oss
+alias sound-service-0-8 snd-seq-oss
+#alias sound-service-0-12 snd-pcm-oss
+
+options snd-intel8x0 index=0 id="intel8x0" enable=1
+
+# USB Audio (Edirol UA-5)
+#alias snd-card-1 snd-usb-audio
+#alias sound-slot-1 snd-card-1
+#alias sound-service-1-0 snd-mixer-oss
+#alias sound-service-1-1 snd-seq-oss
+#alias sound-service-1-3 snd-pcm-oss
+#alias sound-service-1-8 snd-seq-oss
+#alias sound-service-1-12 snd-pcm-oss
+
+options snd-usb-audio index=1 id="usb-audio" enable=1
+
+# OSS devices
+
+#options sound-service-0-3 dsp_map="14,3"
+#options sound-service-1-3 dsp_map="14,19"
+
+#options snd-pcm-oss dsp_map=3,19
+
+alias /dev/mixer snd-mixer-oss
+#alias /dev/dsp snd-pcm-oss
+alias /dev/midi snd-seq-oss
+
+#alias /dev/mixer1 snd-mixer-oss
+#alias /dev/dsp1 snd-pcm-oss
+#alias /dev/midi1 snd-seq-oss

hprofile/example-profiles/boot/files/etc/modules.d/alsa.vmware

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+# OSS/Free portion
+alias char-major-14 soundcore
+alias char-major-14 sb
+options sb io=0x220 irq=5 dma=1 dma16=7
+alias sound sb
+
+# ALSA portion
+alias char-major-116 snd
+options snd snd_cards_limit=1 snd_major=116
+alias snd-card-0 snd-sb16
+options snd-sb16 snd_id=card1 snd_index=0 snd_isapnp=0
+
+# OSS/Free portion - card #1
+alias sound-service-0-0 snd-mixer-oss
+alias sound-service-0-1 snd-seq-oss
+alias sound-service-0-3 snd-pcm-oss
+alias sound-service-0-8 snd-seq-oss
+alias sound-service-0-12 snd-pcm-oss
+
+#customize the lines below to allow for demand-loading of modules
+#options snd snd_major=116 snd_cards_limit=1
+alias snd-card-0 snd-sb16
+options snd-sb16 snd_index=0
+alias sound-slot-0 snd-card-0
+
+# Alsa
+# alias snd-card-0 snd-card-sb16
+#alias snd-card-1 snd-sb16
+#alias snd-card-2 snd-sb16
+#alias snd-card-3 snd-sb16
+#alias snd-card-4 snd-sb16
+#alias snd-card-5 snd-sb16
+#alias snd-card-6 snd-sb16
+#alias snd-card-7 snd-sb16