diff options
| -rw-r--r-- | Documentation/nfsroot.txt | 12 | ||||
| -rw-r--r-- | net/ipv4/ipconfig.c | 20 |
2 files changed, 10 insertions, 22 deletions
diff --git a/Documentation/nfsroot.txt b/Documentation/nfsroot.txt index 16a7cae2721d..9b956a969362 100644 --- a/Documentation/nfsroot.txt +++ b/Documentation/nfsroot.txt @@ -92,8 +92,14 @@ ip=<client-ip>:<server-ip>:<gw-ip>:<netmask>:<hostname>:<device>:<autoconf> autoconfiguration. The <autoconf> parameter can appear alone as the value to the `ip' - parameter (without all the ':' characters before) in which case auto- - configuration is used. + parameter (without all the ':' characters before). If the value is + "ip=off" or "ip=none", no autoconfiguration will take place, otherwise + autoconfiguration will take place. The most common way to use this + is "ip=dhcp". + + Note that "ip=off" is not the same thing as "ip=::::::off", because in + the latter autoconfiguration will take place if any of DHCP, BOOTP or RARP + are compiled in the kernel. <client-ip> IP address of the client. @@ -142,7 +148,7 @@ ip=<client-ip>:<server-ip>:<gw-ip>:<netmask>:<hostname>:<device>:<autoconf> into the kernel will be used, regardless of the value of this option. - off or none: don't use autoconfiguration (default) + off or none: don't use autoconfiguration on or any: use any protocol available in the kernel dhcp: use DHCP bootp: use BOOTP diff --git a/net/ipv4/ipconfig.c b/net/ipv4/ipconfig.c index c5c107a01823..96400b0bd08a 100644 --- a/net/ipv4/ipconfig.c +++ b/net/ipv4/ipconfig.c @@ -1396,25 +1396,7 @@ late_initcall(ip_auto_config); /* * Decode any IP configuration options in the "ip=" or "nfsaddrs=" kernel - * command line parameter. It consists of option fields separated by colons in - * the following order: - * - * <client-ip>:<server-ip>:<gw-ip>:<netmask>:<host name>:<device>:<PROTO> - * - * Any of the fields can be empty which means to use a default value: - * <client-ip> - address given by BOOTP or RARP - * <server-ip> - address of host returning BOOTP or RARP packet - * <gw-ip> - none, or the address returned by BOOTP - * <netmask> - automatically determined from <client-ip>, or the - * one returned by BOOTP - * <host name> - <client-ip> in ASCII notation, or the name returned - * by BOOTP - * <device> - use all available devices - * <PROTO>: - * off|none - don't do autoconfig at all (DEFAULT) - * on|any - use any configured protocol - * dhcp|bootp|rarp - use only the specified protocol - * both - use both BOOTP and RARP (not DHCP) + * command line parameter. See Documentation/nfsroot.txt. */ static int __init ic_proto_name(char *name) { |