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[autoboot] Connect SAN disk during a filename boot, if applicable

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For performing installations direct to a SAN target, it can be very
useful to hook a SAN disk and then proceed to perform a filename boot.
For example, the user may wish to hook the (empty) SAN installation
disk and then boot into the OS installer via TFTP.  This provides an
alternative mechanism to using "keep-san" and relying on the BIOS to
fall through to boot from the installation media, which is unreliable
on many BIOSes.

When a root-path is specified in addition to a boot filename, attempt
to hook the root-path as a SAN disk before booting from the specified
filename.  Since the root-path may be used for non-SAN purposes
(e.g. an NFS root mount point), ignore the root-path if it contains a
URI scheme that we do not support.

Originally-implemented-by: Jarrod Johnson <jarrod.b.johnson@gmail.com>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2011-01-27 18:48:47 +00:00
parent 962cada830
commit e088892a81
7 changed files with 261 additions and 163 deletions
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1
src/include/ipxe/errfile.h
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@@ -235,6 +235,7 @@ FILE_LICENCE ( GPL2_OR_LATER );
#define ERRFILE_ifmgmt_cmd ( ERRFILE_OTHER | 0x001d0000 )
#define ERRFILE_fcmgmt_cmd ( ERRFILE_OTHER | 0x001e0000 )
#define ERRFILE_gdbstub_cmd ( ERRFILE_OTHER | 0x001f0000 )
#define ERRFILE_sanboot_cmd ( ERRFILE_OTHER | 0x00200000 )
/** @} */

8
src/include/usr/autoboot.h
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@@ -11,12 +11,14 @@ FILE_LICENCE ( GPL2_OR_LATER );
#include <ipxe/in.h>
struct net_device;
struct uri;
struct settings;
extern int uriboot ( struct uri *filename, struct uri *root_path );
extern struct uri *
fetch_next_server_and_filename ( struct settings *settings );
extern int netboot ( struct net_device *netdev );
extern int autoboot ( void );
extern int boot_next_server_and_filename ( struct in_addr next_server,
const char *filename );
extern int boot_root_path ( const char *root_path );
extern int pxe_menu_boot ( struct net_device *netdev );

2
src/include/usr/imgmgmt.h
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@@ -11,6 +11,8 @@ FILE_LICENCE ( GPL2_OR_LATER );
struct image;
extern int imgdownload ( struct image *image, struct uri *uri,
int ( * image_register ) ( struct image *image ) );
extern int imgfetch ( struct image *image, const char *uri_string,
int ( * image_register ) ( struct image *image ) );
extern int imgload ( struct image *image );