Re: New discussion: ppc64 installer -- ext2 /boot partition to keep yaboot happy.
On 10/10/2017 12:56 PM, John Paul Adrian Glaubitz wrote:
On 10/10/2017 12:33 PM, Frank Scheiner wrote:
Now we only need to get it working on NewWorld Macs :).
Yeah, that seems to be a hard nut to crack. But I believe I'm making
some progress - in understanding at least :-D.
Great.
Ok, looks like I got GRUB installed - "in some way" ;-) with a modified
`grub-installer` script.
It still requires:
* to manually mount the NewWorld boot partition to `/target/boot/grub`
* and a prior yaboot installation (for hfsutils and HFS formatting,
etc.) until this is done from grub-installer's `debian/postinst` and
`grub-installer` scripts (I adapted some code from `mkofboot`/`ybin` for
HFS formatting in `grub-installer` but it isn't used yet)
...before actually starting the GRUB installation, but it runs through.
I did this in expert mode and haven't yet tested any other modes of
installation.
This is the patch (it still contains unneeded comments and is meant for
discussion mainly):
```
diff --git a/grub-installer b/grub-installer
index f9f0761..d354b62 100755
--- a/grub-installer
+++ b/grub-installer
@@ -37,6 +37,29 @@ debug () {
[ -z "${DEBCONF_DEBUG}" ] || log "debug: $@"
}
+# adapted from ybin's mkoffs()
+grub_create_offs()
+{
+ local self="grub_create_offs"
+
+ local newworld_boot_partition="$1"
+
+ mount | grep "^$newworld_boot_partition\>" > /dev/null
+ if [ $? = 0 ] ; then
+ error "$self: $newworld_boot_partition appears to be mounted! Aborting."
+ return 1
+ fi
+
+ info "$self: Creating HFS filesystem on $newworld_boot_partition..."
+ hformat -l bootstrap "$boot" > /dev/null
+ if [ $? != 0 ] ; then
+ error 1>&2 "$self: HFS filesystem creation failed!"
+ return 1
+ fi
+ humount "$newworld_boot_partition" ## otherwise we might get confused.
+ return 0
+}
+
ARCH="$(archdetect)"
info "architecture: $ARCH"
@@ -235,19 +258,24 @@ rootfstype="$(findfstype /)"
case $ARCH in
powerpc/chrp|powerpc/chrp_rs6k|powerpc/chrp_ibm|powerpc/cell)
- ;;
+ ;;
ppc64/chrp|ppc64/chrp_rs6k|ppc64/chrp_ibm|ppc64/cell)
- ;;
+ ;;
powerpc/*|ppc64/*)
- offs=$(findfs /boot/grub)
- [ -n "$offs" ] || error "GRUB requires that the OF partition is
mounted in /boot/grub" 1>&2
- ;;
+ offs=$(findfs /boot/grub) # /dev/sda2
+ if [ -n "$offs" ]; then
+ bootfs=$offs # /dev/sda2
+ bootfstype=$(findfstype /boot/grub) # hfs
+ else
+ error "GRUB requires that the OF partition is mounted in /boot/grub" 1>&2
+ fi
+ ;;
esac
# This code to set disc_offered was taken from lilo-installer
rootfs_nodevfs=$(mapdevfs $rootfs)
-bootfs_nodevfs=$(mapdevfs $bootfs)
-prefix=$(device_to_disk "$bootfs")
+bootfs_nodevfs=$(mapdevfs $bootfs) # /dev/sda2
+prefix=$(device_to_disk "$bootfs") # /dev/sda
case $prefix in
/dev/md)
@@ -263,10 +291,10 @@ case $prefix in
disc_offered_devfs=$(echo "$bootfs_nodevfs" | sed "s:\(.*\)/.*:\1/disc:")
;;
esac
-disc_offered=$(mapdevfs "$disc_offered_devfs")
+disc_offered=$(mapdevfs "$disc_offered_devfs") # /dev/sda
# Identify partition table of the disk containing our boot partition
-bootfslabel=$(partmap $disc_offered || echo unknown)
+bootfslabel=$(partmap $disc_offered || echo unknown) # mac
# Check if the boot file system is on Serial ATA RAID
frdev=""
@@ -653,6 +681,14 @@ case $ARCH:$grub_package in
bootdev="$wipe_bootdev"
state=3
;;
+ powerpc/*:grub-ieee1275|ppc64/*:grub-ieee1275)
+ #bootfs=$(findfs /boot/grub)
+ #disk=$(device_to_disk "$bootfs")
+ #db_set grub-installer/bootdev "$disk"
+ #state=2
+ bootdev="$bootfs" # /dev/sda2
+ state=3
+ ;;
*)
# No need for install device selection on other platforms.
bootdev=dummy
@@ -831,19 +867,23 @@ if [ -z "$frdisk" ]; then
fi
fi
- # Should we force a copy of grub-efi to be installed
- # to the removable media path too? Ask at low
- # priority, or can also be pre-seeded of course
- db_input low grub-installer/force-efi-extra-removable || [ $? -eq 30 ]
- db_go || exit 10
- db_get grub-installer/force-efi-extra-removable
- if [ "$RET" = true ]; then
- grub_install_params="$grub_install_params --force-extra-removable"
- # Make sure this happens on upgrades too
- $chroot $ROOT 'debconf-set-selections' <<EOF
-$grub_package grub2/force_efi_extra_removable boolean true
-EOF
- fi
+ case $grub_package in
+ grub-efi*)
+ # Should we force a copy of grub-efi to be installed
+ # to the removable media path too? Ask at low
+ # priority, or can also be pre-seeded of course
+ db_input low grub-installer/force-efi-extra-removable || [ $? -eq 30 ]
+ db_go || exit 10
+ db_get grub-installer/force-efi-extra-removable
+ if [ "$RET" = true ]; then
+ grub_install_params="$grub_install_params --force-extra-removable"
+ # Make sure this happens on upgrades too
+ $chroot $ROOT 'debconf-set-selections' <<-EOF
+ $grub_package grub2/force_efi_extra_removable boolean true
+ EOF
+ fi
+ ;;
+ esac
case $ARCH in
powerpc/chrp_pegasos)
@@ -854,6 +894,9 @@ EOF
# see: https://github.com/esnowberg/grub2-sparc/wiki
grub_install_params="$grub_install_params --skip-fs-probe"
;;
+ */powermac_newworld)
+ grub_install_params="$grub_install_params --macppc-directory=/boot/grub"
+ ;;
esac
if [ "$grub_version" = "grub" ] ; then
@@ -865,6 +908,10 @@ EOF
CODE=0
case $ARCH:$grub_package in
+ */powermac_newworld:grub-ieee1275)
+ info "Running $chroot $ROOT grub-install $grub_install_params"
+ log-output -t grub-installer $chroot $ROOT grub-install
$grub_install_params || CODE=$?
+ ;;
*:grub|*:grub-pc|*:grub-efi*|sparc/*:grub-ieee1275|sparc64/*:grub-ieee1275|powerpc/*:grub-ieee1275|ppc64/*:grub-ieee1275|ppc64el/*:grub-ieee1275)
info "Running $chroot $ROOT grub-install $grub_install_params
\"$bootdev\""
log-output -t grub-installer $chroot $ROOT grub-install
$grub_install_params "$bootdev" || CODE=$?
```
It can be booted with `boot hd:2,grub` from OF (although I think it is
intended to use other methods, see below). When doing the installation,
there is a longer waiting period after GRUB was installed and the main
menu returns, I think this is when the configuration file is created.
You should follow the log.
Some issues remain:
```
Oct 10 12:32:48 grub-installer: info: Running chroot /target
grub-install --macppc-directory=/boot/grub --force
Oct 10 12:32:48 grub-installer: Installing for powerpc-ieee1275 platform.
Oct 10 12:32:57 grub-installer: grub-install: error: cannot open
`/usr/lib/grub/powerpc-ieee1275/grub.chrp': No such file or directory.
Oct 10 12:32:57 grub-installer: error: Running 'grub-install
--macppc-directory=/boot/grub --force "/dev/sda2"' failed.
```
From the path of the boot script "[...]/grub.chrp" I'd assume that this
should be shipped with grub-ieee1275, but I'm not sure. Touching that
file in-target makes the error go away:
```
Oct 10 12:52:09 grub-installer: info: Installing grub on '/dev/sda2'
Oct 10 12:52:09 grub-installer: info: grub-install does not support
--no-floppy
Oct 10 12:52:11 grub-installer: info: Running chroot /target
grub-install --macppc-directory=/boot/grub --force
Oct 10 12:52:11 grub-installer: Installing for powerpc-ieee1275 platform.
Oct 10 12:52:20 grub-installer: /usr/sbin/ofpathname: line 812: warning:
command substitution: ignored null byte in input
Oct 10 12:52:20 grub-installer: Installation finished. No error reported.
Oct 10 12:52:20 grub-installer: info: grub-install ran successfully
```
When running `grub-install -v --no-nvram --macppc-directory=/boot/grub
/dev/sda2` manually in-target - btw it makes no difference between
keeping `/dev/sda2` or omitting it, most likely because of
`--macppc-directory=[...]` - I can see that this bootscript should go to
`/boot/grub/System/Library/CoreServices/BootX`. And this is also what
GRUB configures as file to boot in the NVRAM:
```
root@powermac-g5:/boot/grub# nvram --print-config=boot-device
/ht@0,f2000000/pci@9/k2-sata-root@c/scsi@0/sd@0,0:2,\\BootX
```
So this file is really needed, although I can still boot by calling grub
directly.
There's still this issue with `ofpathname`, but I don't yet know from
where or just where it is called.
Regarding hfsutils:
Here's a patch for grub-installer (package source) that should hopefully
install hfsutils from the `debian/postinst` script (adapted from
yaboot-installer)
for the newworld_powermac subarchitecture(s) only:
```
diff --git a/debian/grub-installer.templates
b/debian/grub-installer.templates
index e294afb..7ed4b21 100644
--- a/debian/grub-installer.templates
+++ b/debian/grub-installer.templates
@@ -131,6 +131,18 @@ Template: grub-installer/password-crypted
Type: password
Description: for internal use; can be preseeded
+Template: grub-installer/apt-install-hfsutils
[...]
# If we're installing grub-efi, it wants /sys mounted in the
# target. Maybe /proc too?
mountvirtfs proc /target/proc
```
That looks reasonable to me.
After working with the grub-installer script, I wonder if we should move
this to this script instead, because the installation of grub packages
is also done from there. On the other hand, grub-installer is already
loaded with lots of different things...
What is the meaning of those "# :sl<NUMBER>:" comments, if at all? I
didn't
find any clue in the debconf specification [1] and manpages [2].
Not sure. Those might be hints for the menu system.
We can ask in #debian-boot or on the debian-boot mailing list.
The value I used currently doesn't seem to hurt at least.
Cheers,
Frank
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