Difference between revisions of "Kernel Command Line Arguments"

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; console : The console settings. When using this option, you will need to specify the serial console port and baud rate. For example: console=ttyS0,38400 where ttyS0 is the serial console port and 38400 is the baud rate for the serial port. Another example: console=ttyS0,384008N1 where 8 is is data bits, N is odd parity and 1 is stop bits.
 
; console : The console settings. When using this option, you will need to specify the serial console port and baud rate. For example: console=ttyS0,38400 where ttyS0 is the serial console port and 38400 is the baud rate for the serial port. Another example: console=ttyS0,384008N1 where 8 is is data bits, N is odd parity and 1 is stop bits.
 
; nfsroot : If the root filesystem for a board is mounted from a remote NFS server, this option can be used to specify the NFS server and the NFS filesystem. This option can be used as: '''nfsroot=<server-name>:<remote filesystem>'''. For example: nfsroot=10.0.0.139:/opt/mips_le_fs, where 10.0.0.139 is the NFS server name and /opt/mips_le_fs is the remove filesystem exported by the NFS server.
 
; nfsroot : If the root filesystem for a board is mounted from a remote NFS server, this option can be used to specify the NFS server and the NFS filesystem. This option can be used as: '''nfsroot=<server-name>:<remote filesystem>'''. For example: nfsroot=10.0.0.139:/opt/mips_le_fs, where 10.0.0.139 is the NFS server name and /opt/mips_le_fs is the remove filesystem exported by the NFS server.
 +
; root : This option is used to specify the root filesystem. For example, if the root filesytem resides on the second partition of a SCSI device /dev/sda, then this can be specified as: '''root=/dev/sda2'''. Similarly, then the root filesystem is mounted over NFS, '''root=/dev/nfs''' can be used.

Revision as of 19:35, 22 November 2004

nofpu 
Can be used to disable the FPU entirely. In this the kernel FPU emulation will take over floating point processing. Useful if a FPU is known to be defective, has accuracy problems and wrongly detected as present even though none exists.
rd_start 
The base address of a loaded ramdisk image. This option was added in Linux 2.6.10-rc2. See also rd_start.
rd_base 
The size of a loaded ramdisk image. This option was added in Linux 2.6.10-rc2. See also rd_start.
console 
The console settings. When using this option, you will need to specify the serial console port and baud rate. For example: console=ttyS0,38400 where ttyS0 is the serial console port and 38400 is the baud rate for the serial port. Another example: console=ttyS0,384008N1 where 8 is is data bits, N is odd parity and 1 is stop bits.
nfsroot 
If the root filesystem for a board is mounted from a remote NFS server, this option can be used to specify the NFS server and the NFS filesystem. This option can be used as: nfsroot=<server-name>:<remote filesystem>. For example: nfsroot=10.0.0.139:/opt/mips_le_fs, where 10.0.0.139 is the NFS server name and /opt/mips_le_fs is the remove filesystem exported by the NFS server.
root 
This option is used to specify the root filesystem. For example, if the root filesytem resides on the second partition of a SCSI device /dev/sda, then this can be specified as: root=/dev/sda2. Similarly, then the root filesystem is mounted over NFS, root=/dev/nfs can be used.