Difference between revisions of "Kernel Command Line Arguments"
From LinuxMIPS
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; rd_base : The size of a loaded ramdisk image. This option was added in Linux 2.6.10-rc2. See also <tt>rd_start</tt>. | ; rd_base : The size of a loaded ramdisk image. This option was added in Linux 2.6.10-rc2. See also <tt>rd_start</tt>. | ||
; 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. | ||
| + | ; maxcpus=<number> : Allows to limit the number of processors to be used on a multiprocessor systems. | ||
; 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. | ||
| + | ; nosmp : Disable [[SMP]]. Same as <code>maxcpus=0</code>. | ||
; 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. | ; 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 13:39, 11 January 2005
- 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.
- maxcpus=<number>
- Allows to limit the number of processors to be used on a multiprocessor systems.
- 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.
- nosmp
- Disable SMP. Same as
maxcpus=0. - 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.
