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Old 02-27-2012, 08:09 PM
Mark Hamzy
 
Default Discussion... Migrate PPC from Yaboot to Grub2

I'm working on a patch to switch from yahoot to grub.

I've encountered one problem. Grub doesn't like '(hd0)' syntax but works with '/dev/sda1'

[anaconda root@(none) /]# cat /mnt/sysimage/boot/grub2/device.map
# this device map was generated by anaconda
(hd0) /dev/sda
[anaconda root@(none) /]# cat /tmp/program.log
...
18:21:28,809 INFO program: Running... grub2-install --no-floppy (hd0,1)
18:21:29,929 ERR program: /sbin/grub2-probe: error: cannot stat `(hd0,1)'.
18:21:29,930 INFO program: The chosen partition is not a PReP partition.
...
[anaconda root@(none) /]# chroot /mnt/sysimage/
[anaconda root@9-5-90-148 /]# grub2-install --no-floppy '(hd0,1)'
/sbin/grub2-probe: error: cannot stat `(hd0,1)'.
The chosen partition is not a PReP partition.
[anaconda root@9-5-90-148 /]# grub2-install --no-floppy '(hd0)'
/sbin/grub2-probe: error: cannot stat `(hd0)'.
The chosen partition is not a PReP partition.
[anaconda root@9-5-90-148 /]# grub2-install --no-floppy /dev/sda1
183+1 records in
183+1 records out

This also needs patch to grub to accept GRUB_TERMINFO. The grub patch is appended to anaconda's.


---
pyanaconda/bootloader.py | 46 +++++++++++++++++++++++++++++++++++-----------
pyanaconda/platform.py | 4 ++--
2 files changed, 37 insertions(+), 13 deletions(-)

diff --git a/pyanaconda/bootloader.py b/pyanaconda/bootloader.py
index 45905d1..1ea86d5 100644
--- a/pyanaconda/bootloader.py
+++ b/pyanaconda/bootloader.py
@@ -1920,16 +1920,7 @@ class Yaboot(YabootSILOBase):
raise BootLoaderError("bootloader installation failed")


-class IPSeriesYaboot(Yaboot):
- prog = "mkofboot"
-
- #
- # configuration
- #
-
- def write_config_variant_header(self, config):
- config.write("nonvram
") # only on pSeries?
- config.write("fstype=raw
")
+class IPSeriesGRUB2(GRUB2):

#
# installation
@@ -1938,7 +1929,7 @@ class IPSeriesYaboot(Yaboot):
def install(self):
self.updatePowerPCBootList()

- super(IPSeriesYaboot, self).install()
+ super(IPSeriesGRUB2, self).install()

def updatePowerPCBootList(self):

@@ -1981,6 +1972,39 @@ class IPSeriesYaboot(Yaboot):
else:
log.info("Updated PPC boot list with the command: nvram --update-config %s" % update_value)

+ def write_defaults(self)
+ super(IPSeriesGRUB2, self).write_defaults()
+
+ defaults_file = "%s%s" % (ROOT_PATH, self.defaults_file)
+ defaults = open(defaults_file, "a+")
+ defaults.write("GRUB_TERMINFO="%s -g %dx%d %s"
" % ("terminfo", 80, 24, "console"))
+ defaults.close()
+
+ #
+ # @BUG
+ #
+ def grub_device_name(self, device):
+ """ Return a grub-friendly representation of device.
+
+ Disks and partitions use the (hdX,Y) notation, while lvm and
+ md devices just use their names.
+ """
+ drive = None
+ name = "(%s)" % device.name
+
+ if device.isDisk:
+ drive = device
+ elif hasattr(device, "disk"):
+ # @FIX
+ name = "/dev/%s" % device.name
+
+ if drive is not None:
+ name = "(hd%d" % self.drives.index(drive)
+ if hasattr(device, "disk"):
+ name += ",%d" % device.partedPartition.number
+ name += ")"
+ return name
+

class MacYaboot(Yaboot):
prog = "mkofboot"
diff --git a/pyanaconda/platform.py b/pyanaconda/platform.py
index c57c76e..5712221 100644
--- a/pyanaconda/platform.py
+++ b/pyanaconda/platform.py
@@ -231,7 +231,7 @@ class MacEFI(EFI):

class PPC(Platform):
_ppcMachine = iutil.getPPCMachine()
- _bootloaderClass = bootloader.Yaboot
+ _bootloaderClass = bootloader.GRUB2
_boot_stage1_device_types = ["partition"]

@property
@@ -239,7 +239,7 @@ class PPC(Platform):
return self._ppcMachine

class IPSeriesPPC(PPC):
- _bootloaderClass = bootloader.IPSeriesYaboot
+ _bootloaderClass = bootloader.IPSeriesGRUB2
_boot_stage1_format_types = ["prepboot"]
_boot_stage1_max_end_mb = 10
_boot_prep_description = N_("PReP Boot Partition")
--
1.7.7.6

=== modified file 'Makefile.util.def'
--- Makefile.util.def 2012-02-22 04:37:32 +0000
+++ Makefile.util.def 2012-02-22 20:15:37 +0000
@@ -411,6 +411,13 @@
};

script = {
+ name = '20_ppc_terminfo';
+ common = util/grub.d/20_ppc_terminfo.in;
+ installdir = grubconf;
+ condition = COND_HOST_LINUX;
+};
+
+script = {
name = '30_os-prober';
common = util/grub.d/30_os-prober.in;
installdir = grubconf;

=== added file 'util/grub.d/20_ppc_terminfo.in'
--- util/grub.d/20_ppc_terminfo.in 1970-01-01 00:00:00 +0000
+++ util/grub.d/20_ppc_terminfo.in 2012-02-24 22:16:36 +0000
@@ -0,0 +1,107 @@
+#! /bin/sh
+set -e
+
+# grub-mkconfig helper script.
+# Copyright (C) 2006,2007,2008,2009,2010 Free Software Foundation, Inc.
+#
+# GRUB is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# GRUB is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GRUB. If not, see <http://www.gnu.org/licenses/>.
+
+prefix=@prefix@
+exec_prefix=@exec_prefix@
+bindir=@bindir@
+libdir=@libdir@
+. ${libdir}/grub/grub-mkconfig_lib
+
+export TEXTDOMAIN=@PACKAGE@
+export TEXTDOMAINDIR=@localedir@
+
+X=80
+Y=24
+TERMINAL=console
+
+argument () {
+ opt=$1
+ shift
+
+ if test $# -eq 0; then
+ echo "$0: option requires an argument -- '$opt'" 1>&2
+ exit 1
+ fi
+ echo $1
+}
+
+check_terminfo () {
+
+ while test $# -gt 0
+ do
+ option=$1
+ shift
+
+ case "$option" in
+ terminfo | TERMINFO)
+ ;;
+
+ -g)
+ NEWXY=`argument $option "$@"`
+ NEWX=`echo $NEWXY | cut -d x -f 1`
+ NEWY=`echo $NEWXY | cut -d x -f 2`
+
+ if [ ${NEWX} -ge 80 ] ; then
+ X=${NEWX}
+ else
+ echo "Warning: ${NEWX} is less than the minimum size of 80"
+ fi
+
+ if [ ${NEWY} -ge 24 ] ; then
+ Y=${NEWY}
+ else
+ echo "Warning: ${NEWY} is less than the minimum size of 24"
+ fi
+
+ shift
+ ;;
+
+ *)
+ # accept console or ofconsole
+ if [ "$option" != "console" -a "$option" != "ofconsole" ] ; then
+ echo "Error: GRUB_TERMINFO unknown console: $option"
+ exit 1
+ fi
+ # perfer console
+ TERMINAL=console
+ ;;
+ esac
+
+ done
+
+}
+
+if ! uname -m | grep -q ppc ; then
+ exit 0
+fi
+
+if [ "x${GRUB_TERMINFO}" != "x" ] ; then
+ F1=`echo ${GRUB_TERMINFO} | cut -d " " -f 1`
+
+ if [ "${F1}" != "terminfo" ] ; then
+ echo "Error: GRUB_TERMINFO is set to "${GRUB_TERMINFO}" The first word should be terminfo."
+ exit 1
+ fi
+
+ check_terminfo ${GRUB_TERMINFO}
+fi
+
+cat << EOF
+ echo terminfo -g ${X}x${Y} ${TERMINAL}
+EOF

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