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When updating I got a rather odd message when mkinitcpio would rebuild the kernel image.
[2015-11-08 17:11] [ALPM] reinstalled linux (4.2.5-1)
[2015-11-08 17:11] [ALPM-SCRIPTLET] >>> Updating module dependencies. Please wait ...
[2015-11-08 17:11] [ALPM-SCRIPTLET] >>> Generating initial ramdisk, using mkinitcpio. Please wait...
[2015-11-08 17:11] [ALPM-SCRIPTLET] ==> Building image from preset: /etc/mkinitcpio.d/linux.preset: 'default'
[2015-11-08 17:11] [ALPM-SCRIPTLET] -> -k /boot/vmlinuz-linux -c /etc/mkinitcpio.conf -g /boot/initramfs-linux.img
[2015-11-08 17:11] [ALPM-SCRIPTLET] ==> Starting build: 4.2.5-1-ARCH
[2015-11-08 17:11] [ALPM-SCRIPTLET] -> Running build hook: [base]
[2015-11-08 17:11] [ALPM-SCRIPTLET] -> Running build hook: [udev]
[2015-11-08 17:11] [ALPM-SCRIPTLET] -> Running build hook: [autodetect]
[2015-11-08 17:11] [ALPM-SCRIPTLET] -> Running build hook: [modconf]
[2015-11-08 17:11] [ALPM-SCRIPTLET] -> Running build hook: [block]
[2015-11-08 17:11] [ALPM-SCRIPTLET] -> Running build hook: [filesystems]
[2015-11-08 17:11] [ALPM-SCRIPTLET] -> Running build hook: [keyboard]
[2015-11-08 17:11] [ALPM-SCRIPTLET] -> Running build hook: [fsck]
[2015-11-08 17:11] [ALPM-SCRIPTLET] ==> ERROR: module not found: `...'
[2015-11-08 17:11] [ALPM-SCRIPTLET] ==> ERROR: module not found: `...'
[2015-11-08 17:11] [ALPM-SCRIPTLET] ==> Generating module dependencies
[2015-11-08 17:11] [ALPM-SCRIPTLET] ==> Creating gzip-compressed initcpio image: /boot/initramfs-linux.img
[2015-11-08 17:11] [ALPM-SCRIPTLET] ==> WARNING: errors were encountered during the build. The image may not be complete.
[2015-11-08 17:11] [ALPM-SCRIPTLET] ==> Building image from preset: /etc/mkinitcpio.d/linux.preset: 'fallback'
[2015-11-08 17:11] [ALPM-SCRIPTLET] -> -k /boot/vmlinuz-linux -c /etc/mkinitcpio.conf -g /boot/initramfs-linux-fallback.img -S autodetect
[2015-11-08 17:11] [ALPM-SCRIPTLET] ==> Starting build: 4.2.5-1-ARCH
[2015-11-08 17:11] [ALPM-SCRIPTLET] -> Running build hook: [base]
[2015-11-08 17:11] [ALPM-SCRIPTLET] -> Running build hook: [udev]
[2015-11-08 17:11] [ALPM-SCRIPTLET] -> Running build hook: [modconf]
[2015-11-08 17:11] [ALPM-SCRIPTLET] -> Running build hook: [block]
[2015-11-08 17:11] [ALPM-SCRIPTLET] ==> WARNING: Possibly missing firmware for module: aic94xx
[2015-11-08 17:11] [ALPM-SCRIPTLET] ==> WARNING: Possibly missing firmware for module: wd719x
[2015-11-08 17:11] [ALPM-SCRIPTLET] -> Running build hook: [filesystems]
[2015-11-08 17:11] [ALPM-SCRIPTLET] -> Running build hook: [keyboard]
[2015-11-08 17:11] [ALPM-SCRIPTLET] -> Running build hook: [fsck]
[2015-11-08 17:11] [ALPM-SCRIPTLET] ==> ERROR: module not found: `...'
[2015-11-08 17:11] [ALPM-SCRIPTLET] ==> ERROR: module not found: `...'
[2015-11-08 17:11] [ALPM-SCRIPTLET] ==> Generating module dependencies
[2015-11-08 17:11] [ALPM-SCRIPTLET] ==> Creating gzip-compressed initcpio image: /boot/initramfs-linux-fallback.img
[2015-11-08 17:11] [ALPM-SCRIPTLET] ==> WARNING: errors were encountered during the build. The image may not be complete.
[2015-11-08 17:11] [ALPM] transaction completed
You can probably imagine that ERROR: module not found: `...' is a futile google search term. But luckily I found a the answer in /etc/mcinitcpio.conf
MODULES="... nouveau ..."
Which I changed to
MODULES=""
And of course then after saving run
$ sudo mkinitcpio -p linux
mkinitcpio was choking on the ... Space and producing an error. I have no idea how that snippet got in there, or if my nouveau drivers are now affected but the system seems fine.
Now off to those pesky firmware warnings.
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nouveau module just provides early kernel mode setting. You do not need to fix the warnings if you do not need the device that is missing its firmware. Even if you use those devices, they might just have limited functionallity.
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