Attempted to install mono on a Arch Linux pogoplug and there were three references to Arch Linux ARM.com that do not exists and the install failed.
[root@alarm dev]# pacman -S mono
resolving dependencies...
looking for inter-conflicts...
Targets (20): libjpeg-8.3.0-1 libtiff-3.9.5-1 libpng-1.4.5-1 xcb-proto-1.6-2
xproto-7.0.21-1 libxdmcp-1.1.0-1 libxau-1.0.6-1 libxcb-1.7-2
kbproto-1.0.5-1 libx11-1.4.3-2 renderproto-0.11.1-1
libxrender-0.9.6-1 freetype2-2.4.4-2 fontconfig-2.8.0-1
pixman-0.20.2-1 cairo-1.10.2-2 giflib-4.1.6-4 libexif-0.6.20-1
libgdiplus-2.10-1 mono-2.10.2-1
Total Download Size: 34.05 MB
Total Installed Size: 166.05 MB
Proceed with installation? [Y/n] y
:: Retrieving packages from extra...
libjpeg-8.3.0-1-arm 171.6K 109.5K/s 00:00:02 [######################] 100%
libtiff-3.9.5-1-arm 740.2K 109.4K/s 00:00:07 [######################] 100%
error: failed retrieving file 'libpng-1.4.5-1-arm.pkg.tar.xz' from Arch Linux ARM.com : Not Found
xcb-proto-1.6-2-any 43.8K 82.7K/s 00:00:01 [######################] 100%
error: failed retrieving file 'xproto-7.0.21-1-any.pkg.tar.xz' from Arch Linux ARM.com : Not Found
libxdmcp-1.1.0-1-arm 22.1K 65.6K/s 00:00:00 [######################] 100%
libxau-1.0.6-1-arm 9.2K 70.6K/s 00:00:00 [######################] 100%
libxcb-1.7-2-arm 238.3K 134.6K/s 00:00:02 [######################] 100%
kbproto-1.0.5-1-any 21.7K 120.4K/s 00:00:00 [######################] 100%
libx11-1.4.3-2-arm 2.1M 68.3K/s 00:00:31 [######################] 100%
renderproto-0.11.1... 15.0K 91.6K/s 00:00:00 [######################] 100%
libxrender-0.9.6-1-arm 19.3K 75.1K/s 00:00:00 [######################] 100%
freetype2-2.4.4-2-arm 394.8K 90.8K/s 00:00:04 [######################] 100%
fontconfig-2.8.0-1-arm 634.2K 103.4K/s 00:00:06 [######################] 100%
error: failed retrieving file 'pixman-0.20.2-1-arm.pkg.tar.xz' from Arch Linux ARM.com : Not Found
cairo-1.10.2-2-arm 404.9K 90.3K/s 00:00:04 [######################] 100%
giflib-4.1.6-4-arm 73.4K 67.3K/s 00:00:01 [######################] 100%
libexif-0.6.20-1-arm 507.5K 119.9K/s 00:00:04 [######################] 100%
libgdiplus-2.10-1-arm 164.0K 111.4K/s 00:00:01 [######################] 100%
mono-2.10.2-1-arm 28.1M 96.5K/s 00:04:58 [######################] 100%
warning: failed to retrieve some files from extra
error: failed to commit transaction (Not Found)
Errors occurred, no packages were upgraded.
[root@alarm dev]#