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Diffstat (limited to 'docs/system/linuxboot.texi')
| -rw-r--r-- | docs/system/linuxboot.texi | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/docs/system/linuxboot.texi b/docs/system/linuxboot.texi new file mode 100644 index 0000000000..97c3cefae0 --- /dev/null +++ b/docs/system/linuxboot.texi @@ -0,0 +1,27 @@ +@node direct_linux_boot +@section Direct Linux Boot + +This section explains how to launch a Linux kernel inside QEMU without +having to make a full bootable image. It is very useful for fast Linux +kernel testing. + +The syntax is: +@example +@value{qemu_system} -kernel bzImage -hda rootdisk.img -append "root=/dev/hda" +@end example + +Use @option{-kernel} to provide the Linux kernel image and +@option{-append} to give the kernel command line arguments. The +@option{-initrd} option can be used to provide an INITRD image. + +If you do not need graphical output, you can disable it and redirect +the virtual serial port and the QEMU monitor to the console with the +@option{-nographic} option. The typical command line is: +@example +@value{qemu_system} -kernel bzImage -hda rootdisk.img \ + -append "root=/dev/hda console=ttyS0" -nographic +@end example + +Use @key{Ctrl-a c} to switch between the serial console and the +monitor (@pxref{pcsys_keys}). + |