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| author | Sascha Hauer <s.hauer@pengutronix.de> | 2015-06-17 13:00:10 +0200 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2015-06-18 09:01:01 +0200 |
| commit | 278d9b8ba6673e34b7ceb41212cf3e270a04d683 (patch) | |
| tree | 0daa7e0f5c5f6e1e979714af4953cea390ee9ab5 /Documentation/filesystems | |
| parent | 745594d51afa71b01bb5bfda969da19aa079d214 (diff) | |
| download | barebox-278d9b8ba6673e34b7ceb41212cf3e270a04d683.tar.gz barebox-278d9b8ba6673e34b7ceb41212cf3e270a04d683.tar.xz | |
fs: nfs: Implement Linux rootarg
Add the root= parameter for NFS filesystems. We currently hardcode
v3 and tcp which probably needs to become configurable at some point.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'Documentation/filesystems')
| -rw-r--r-- | Documentation/filesystems/nfs.rst | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/Documentation/filesystems/nfs.rst b/Documentation/filesystems/nfs.rst index f4eda5d13c..4469ac1dff 100644 --- a/Documentation/filesystems/nfs.rst +++ b/Documentation/filesystems/nfs.rst @@ -10,3 +10,16 @@ barebox has readonly support for NFSv3 in UDP mode. Example:: mount -t nfs 192.168.23.4:/home/user/nfsroot /mnt/nfs + +The barebox NFS driver adds a ``linux.bootargs`` device parameter to the NFS device. +This parameter holds a Linux kernel commandline snippet containing a suitable root= +option for booting from exactly that NFS share. + +Example:: + + devinfo nfs0 + ... + linux.bootargs: root=/dev/nfs nfsroot=192.168.23.4:/home/sha/nfsroot/generic-v7,v3,tcp + +The options default to ``v3,tcp`` but can be adjusted before mounting the NFS share with +the ``global.linux.rootnfsopts`` variable |