path: root/doc/forum/imageBuiltFor_mount_points_not_automatically_created/comment_18_adea3a8a65cf954a5244bbb47a1636e4._comment
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authorJoey Hess2018-01-06 14:48:34 -0400
committerJoey Hess2018-01-06 14:48:34 -0400
commitbc6045c8b5333ac5d407e8f4b96bb0d9f50dfa9a (patch)
tree303bf5f1e584e58a31bfb45f6b8c714b2e3d622e /doc/forum/imageBuiltFor_mount_points_not_automatically_created/comment_18_adea3a8a65cf954a5244bbb47a1636e4._comment
parent48196467d11a856f411208ba5eadb20dd9455c10 (diff)
changes to allow GPT BIOS boot partitions
* Parted: Allow partitions to have no filesystem, for eg, GPT BIOS boot partitions. (API change) * Added rawPartition to PartSpec, for specifying partitions with no filesystem. * Added BiosGrubFlag to PartFlag. Note that man parted does not list the "bios_boot" flag, but I found it in its html documentation. Other flags may also be missing. This commit was sponsored by Boyd Stephen Smith Jr. on Patreon.
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+[[!comment format=mdwn
+ username="joey"
+ subject="""comment 18"""
+ date="2018-01-06T17:51:05Z"
+ content="""
+I don't know much about GPT boot stuff. I found mention of a BIOS boot
+partition for GPT here:
+So, 1 mb partition with no filesystem and a "bios_grub" flag.
+Propellor's partitioning DSL will need to be extended in order to
+support that. Currently, `Partition` has a `Fs` that is one of the common
+filesystems or swap. Now we need no filesystem, so either add a NoFs to Fs,
+or change it to use `Maybe Fs`. I chose the latter, because with NoFs,
+Partition.formatted would be a no-op, which would be kinda surprising.
+I've made a commit adding all the stuff you should need, but I have not
+tested making a BIOS boot partition with it. Should look
+something like this:
+ & hasPartition (rawPartition (MegaBytes 1) `setFlag` BiosGrubFlag)
+If you get it working, it would be good to add an example to propellor's docs.