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84d406ccf4
Some older operating systems (e.g. RHEL6) use a non-default filename
on the root disk and rely on setting an EFI variable to point to the
bootloader. This does not work when performing a SAN boot on a
machine where the EFI variable is not present.
Fix by allowing a non-default filename to be specified via the
"sanboot --filename" option or the "san-filename" setting. For
example:
sanboot --filename \efi\redhat\grub.efi \
iscsi:192.168.0.1::::iqn.2010-04.org.ipxe.demo:rhel6
or
option ipxe.san-filename code 188 = string;
option ipxe.san-filename "\\efi\\redhat\\grub.efi";
option root-path "iscsi:192.168.0.1::::iqn.2010-04.org.ipxe.demo:rhel6";
Originally-implemented-by: Vishvananda Ishaya Abrams <vish.ishaya@oracle.com>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
53 lines
1.7 KiB
C
53 lines
1.7 KiB
C
/*
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* Copyright (C) 2010 Michael Brown <mbrown@fensystems.co.uk>.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA.
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*
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* You can also choose to distribute this program under the terms of
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* the Unmodified Binary Distribution Licence (as given in the file
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* COPYING.UBDL), provided that you have satisfied its requirements.
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*/
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FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
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#include <errno.h>
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#include <ipxe/sanboot.h>
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static int null_san_hook ( unsigned int drive __unused,
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struct uri **uris __unused,
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unsigned int count __unused,
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unsigned int flags __unused ) {
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return -EOPNOTSUPP;
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}
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static void null_san_unhook ( unsigned int drive __unused ) {
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/* Do nothing */
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}
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static int null_san_boot ( unsigned int drive __unused,
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const char *filename __unused ) {
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return -EOPNOTSUPP;
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}
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static int null_san_describe ( void ) {
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return -EOPNOTSUPP;
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}
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PROVIDE_SANBOOT ( null, san_hook, null_san_hook );
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PROVIDE_SANBOOT ( null, san_unhook, null_san_unhook );
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PROVIDE_SANBOOT ( null, san_boot, null_san_boot );
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PROVIDE_SANBOOT ( null, san_describe, null_san_describe );
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