From 7e9dd124b90af80824754f68c0b246cfd0fb624b Mon Sep 17 00:00:00 2001 From: Nico Schottelius Date: Fri, 24 Mar 2006 03:18:18 -0800 Subject: [PATCH] [PATCH] Updated Documentation/nfsroot.txt I today booted the first time my embedded device using Linux 2.6.15.2, which was booted by pxelinux, which then bootet itself from the nfsroot. This went pretty fine, but when I was reading through Documentation/nfsroot.txt I saw that there are some more modern versions available of loading the kernel and passing parameters. Signed-off-by: Nico Schottelius Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- Documentation/nfsroot.txt | 17 ++++++++++++++--- 1 file changed, 14 insertions(+), 3 deletions(-) diff --git a/Documentation/nfsroot.txt b/Documentation/nfsroot.txt index a87d4af216c0..d56dc71d9430 100644 --- a/Documentation/nfsroot.txt +++ b/Documentation/nfsroot.txt @@ -3,6 +3,7 @@ Mounting the root filesystem via NFS (nfsroot) Written 1996 by Gero Kuhlmann Updated 1997 by Martin Mares +Updated 2006 by Nico Schottelius @@ -168,7 +169,6 @@ depend on what facilities are available: root. If it got a BOOTP answer the directory name in that answer is used. - 3.2) Using LILO When using LILO you can specify all necessary command line parameters with the 'append=' command in the LILO configuration @@ -177,7 +177,11 @@ depend on what facilities are available: LILO and its 'append=' command please refer to the LILO documentation. -3.3) Using loadlin +3.3) Using GRUB + When you use GRUB, you simply append the parameters after the kernel + specification: "kernel " (without the quotes). + +3.4) Using loadlin When you want to boot Linux from a DOS command prompt without having a local hard disk to mount as root, you can use loadlin. I was told that it works, but haven't used it myself yet. In @@ -185,7 +189,7 @@ depend on what facilities are available: lar to how LILO is doing it. Please refer to the loadlin docu- mentation for further information. -3.4) Using a boot ROM +3.5) Using a boot ROM This is probably the most elegant way of booting a diskless client. With a boot ROM the kernel gets loaded using the TFTP protocol. As far as I know, no commercial boot ROMs yet @@ -194,6 +198,13 @@ depend on what facilities are available: and its mirrors. They are called 'netboot-nfs' and 'etherboot'. Both contain everything you need to boot a diskless Linux client. +3.6) Using pxelinux + Using pxelinux you specify the kernel you built with + "kernel ". The nfsroot parameters + are passed to the kernel by adding them to the "append" line. + You may perhaps also want to fine tune the console output, + see Documentation/serial-console.txt for serial console help. + -- 2.20.1