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add boot params archisoflags= and cow_flags= for mount options

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Having files on btrfs subvolumes requires to give mount options. Add
boot params archisoflags= and cow_flags= for this purpose. Boot
parameters could look like this:

... archisodevice=/dev/sdaX archisoflags=subvolume=isos
cow_device=/dev/sdaX cow_flags=subvolume=persist ...

Signed-off-by: Christian Hesse <mail@eworm.de>
This commit is contained in:
Christian Hesse 2015-12-13 15:18:39 +01:00 • committed by Gerardo Exequiel Pozzi
parent d1e95f8581
commit 03c296cb4f
2 changed files with 8 additions and 2 deletions
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4
docs/README.bootparams
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@ -21,6 +21,8 @@ INDEX
Default: (unset)
* archisodevice= Set the device node where archiso medium is located.
Default: "/dev/disk/by-label/${archisolabel}"
* archisoflags= Set extra mount options, e.g. for btrfs subvolumes.
Default: defaults
* archisobasedir= Set the base directory where all files reside.
Default: "arch"
* copytoram= If set to "y" or just "copytoram" without arguments,
@ -35,6 +37,8 @@ INDEX
Default: (unset)
* cow_device= Like cow_label= but using device node.
Default: (unset) or "/dev/disk/by-label/${cow_label}"
* cow_flags= Set extra mount options, e.g. for btrfs subvolumes.
Default: defaults
* cow_directory= Set a directory inside ${cow_device}.
Default: "/persistent_${archisolabel}/${arch}"
* cow_persistent= Set if snapshot is persistent "P" or non-persistent "N".