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authorJoey Hess2014-07-07 02:58:34 -0400
committerJoey Hess2014-07-07 02:58:34 -0400
commit8c2a9de94b179c01fbb40324a5c06101f0713e9c (patch)
tree8e6c9b5988455f1886f8729b056d4c6001b21c5e /src/Propellor/Property/Grub.hs
parent6f21d87775969446df4ce22e037bcfba7ae87f91 (diff)
propellor spin
Diffstat (limited to 'src/Propellor/Property/Grub.hs')
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+module Propellor.Property.Grub where
+
+import Propellor
+import qualified Propellor.Property.File as File
+import qualified Propellor.Property.Apt as Apt
+import Utility.Applicative
+
+-- | Eg, hd0,0 or xen/xvda1
+type GrubDevice = String
+
+-- | Use PV-grub chaining to boot
+--
+-- Useful when the VPS's pv-grub is too old to boot a modern kernel image.
+--
+-- http://notes.pault.ag/linode-pv-grub-chainning/
+--
+-- The rootdev should be in the form "hd0", while the bootdev is in the form
+-- "xen/xvda".
+chainPVGrub :: GrubDevice -> GrubDevice -> Property
+chainPVGrub rootdev bootdev = combineProperties desc
+ [ "/boot/grub/menu.lst" `File.hasContent`
+ [ "default 1"
+ , "timeout 30"
+ , ""
+ , "title grub-xen shim"
+ , "root (" ++ rootdev ++ ")"
+ , "kernel /boot/xen-shim"
+ , "boot"
+ ]
+ , "/boot/load.cf" `File.hasContent`
+ [ "configfile (" ++ bootdev ++ ")/boot/grub/grub.cfg" ]
+ , Apt.installed ["grub-xen"]
+ , flagFile (scriptProperty ["update-grub; grub-mkimage --prefix '(" ++ bootdev ++ ")/boot/grub' -c /boot/load.cf -O x86_64-xen /usr/lib/grub/x86_64-xen/*.mod > /boot/xen-shim"]) "/boot/xen-shim"
+ `describe` "/boot-xen-shim"
+ ]
+ where
+ desc = "chain PV-grub"