diff options
| author | Michael Brown <mcb30@ipxe.org> | 2017-04-12 15:03:25 +0100 |
|---|---|---|
| committer | Michael Brown <mcb30@ipxe.org> | 2017-04-12 15:58:05 +0100 |
| commit | 84d406ccf48c8808b0bb30d526b758e4b58cacc8 (patch) | |
| tree | e0d262d87136fcaf8f202ab7d6e51760a387fe78 /src/include/ipxe/dhcp.h | |
| parent | a82f93748545427cd7f104f107be1663c55a35fd (diff) | |
| download | ipxe-84d406ccf48c8808b0bb30d526b758e4b58cacc8.tar.gz | |
[block] Allow use of a non-default EFI SAN boot filename
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>
Diffstat (limited to 'src/include/ipxe/dhcp.h')
| -rw-r--r-- | src/include/ipxe/dhcp.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/include/ipxe/dhcp.h b/src/include/ipxe/dhcp.h index 0f662d633..b7a5f004b 100644 --- a/src/include/ipxe/dhcp.h +++ b/src/include/ipxe/dhcp.h @@ -440,6 +440,12 @@ struct dhcp_netdev_desc { */ #define DHCP_EB_SAN_RETRY DHCP_ENCAP_OPT ( DHCP_EB_ENCAP, 0xbb ) +/** SAN filename + * + * This is the path of the bootloader within the SAN device. + */ +#define DHCP_EB_SAN_FILENAME DHCP_ENCAP_OPT ( DHCP_EB_ENCAP, 0xbc ) + /** SAN drive number * * This is the drive number for a SAN-hooked drive. For BIOS, 0x80 is |