Bug#480054: base-installer: [i386] Select appropriate kernel when installing in a virtualised (Xen) environment.
Package: base-installer
Severity: wishlist
Tags: patch
Please consider the attached patch which causes the installer to select
a -bigmem kernel when the processors support PAE and the installer is
itself running a -bigmem kernel.
This is necessary to support running the installer in a para-virtualised
environment (specifically Xen) where the kernel must use PAE if the
hypervisor does or if the hypervisor is 64 bit.
This was discussed in the mailing list thread starting at [0] and the
patch is the same as the patch at [1] except for the additional comment
requested by Frans and the debian/changelog entry.
Cheers,
Ian.
[0] http://lists.debian.org/debian-boot/2008/04/msg01016.html
[1] http://lists.debian.org/debian-boot/2008/05/msg00049.html
-- System Information:
Debian Release: lenny/sid
APT prefers unstable
APT policy: (500, 'unstable'), (500, 'stable')
Architecture: amd64 (x86_64)
Kernel: Linux 2.6.18.8-xen (SMP w/1 CPU core)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash
Index: kernel/README
===================================================================
--- kernel/README (revision 53021)
+++ kernel/README (working copy)
@@ -61,6 +61,8 @@
The major version of the running kernel, e.g. 2.6.
KERNEL_VERSION
The full version of the running kernel, e.g. 2.6.8.
+ KERNEL_FLAVOUR
+ The flavour of the running kernel, e.g. 486, 686-bigmem or ixp4xx.
MACHINE
The machine hardware name (as returned by uname -m).
NUMCPUS
Index: kernel/i386.sh
===================================================================
--- kernel/i386.sh (revision 53021)
+++ kernel/i386.sh (working copy)
@@ -2,16 +2,26 @@
VENDOR=`grep '^vendor_id' "$CPUINFO" | head -n1 | cut -d: -f2`
FAMILY=`grep '^cpu family' "$CPUINFO" | head -n1 | cut -d: -f2`
MODEL=`grep '^model[[:space:]]*:' "$CPUINFO" | head -n1 | cut -d: -f2`
+
+ # Only offer bigmem is the system supports pae and the
+ # installer itself is already using a bigmem kernel.
+ if grep '^flags' "$CPUINFO" | grep -q pae ; then
+ case "$KERNEL_FLAVOUR" in
+ 686-bigmem*) BIGMEM="-bigmem" ;;
+ *) ;;
+ esac
+ fi
+
case "$VENDOR" in
" AuthenticAMD"*)
case "$FAMILY" in
- " 6"|" 15") echo k7 ;;
+ " 6"|" 15") echo k7$BIGMEM ;;
*) echo 486 ;;
esac
;;
" GenuineIntel")
case "$FAMILY" in
- " 6"|" 15") echo 686 ;;
+ " 6"|" 15") echo 686$BIGMEM ;;
*) echo 486 ;;
esac
;;
@@ -19,7 +29,7 @@
case "$FAMILY" in
" 6")
case "$MODEL" in
- " 9"|" 10") echo 686 ;;
+ " 9"|" 10") echo 686$BIGMEM ;;
*) echo 486 ;;
esac
;;
@@ -39,8 +49,8 @@
if echo "$1" | grep -Eq -- "-486(-.*)?$"; then return 0; fi
if [ "$2" = 486 ]; then return 1; fi
if echo "$1" | grep -Eq -- "-686(-.*)?$"; then return 0; fi
- if [ "$2" = 686 ]; then return 1; fi
- if [ "$2" = k7 ]; then
+ if [ "$2" = 686 ] || [ "$2" = 686-bigmem ]; then return 1; fi
+ if [ "$2" = k7 ] || [ "$2" = k7-bigmem ] ; then
if echo "$1" | grep -Eq -- "-k7(-.*)?$"; then return 0; fi
return 1
fi
@@ -53,11 +63,21 @@
arch_get_kernel () {
imgbase=linux-image
+ if [ "$1" = k7-bigmem ]; then
+ echo "$imgbase-$KERNEL_MAJOR-686-bigmem"
+ set k7
+ fi
+
if [ "$1" = k7 ]; then
echo "$imgbase-$KERNEL_MAJOR-k7"
set 486
fi
+ if [ "$1" = 686-bigmem ]; then
+ echo "$imgbase-$KERNEL_MAJOR-686-bigmem"
+ set 686
+ fi
+
if [ "$1" = 686 ]; then
echo "$imgbase-$KERNEL_MAJOR-686"
set 486
Index: kernel/tests/i386/cittagazze-bigmem.test
===================================================================
--- kernel/tests/i386/cittagazze-bigmem.test (revision 0)
+++ kernel/tests/i386/cittagazze-bigmem.test (revision 0)
@@ -0,0 +1,17 @@
+cpuinfo cittagazze.cpuinfo
+majors 2.6
+flavour k7-bigmem
+kernel-2.6 \
+ linux-image-2.6-686-bigmem \
+ linux-image-2.6-k7 \
+ linux-image-2.6-486
+usable \
+ linux-image-2.6-486 \
+ linux-image-2.6-686 \
+ linux-image-2.6-686-bigmem \
+ linux-image-2.6-k7 \
+ linux-image-2.6.18-1-486 \
+ linux-image-2.6.18-1-686 \
+ linux-image-2.6.18-1-686-bigmem \
+ linux-image-2.6.18-1-k7
+env KERNEL_FLAVOUR 686-bigmem
Index: kernel/tests/i386/cittagazze.test
===================================================================
--- kernel/tests/i386/cittagazze.test (revision 53021)
+++ kernel/tests/i386/cittagazze.test (working copy)
@@ -13,3 +13,4 @@
linux-image-2.6.18-1-686 \
linux-image-2.6.18-1-686-bigmem \
linux-image-2.6.18-1-k7
+env KERNEL_FLAVOUR 486
Index: kernel/tests/i386/via-c7-Samuel.test
===================================================================
--- kernel/tests/i386/via-c7-Samuel.test (revision 53021)
+++ kernel/tests/i386/via-c7-Samuel.test (working copy)
@@ -15,3 +15,4 @@
linux-image-2.6.18-1-686-bigmem \
linux-image-2.6.18-1-686 \
linux-image-2.6.18-1-k7
+env KERNEL_FLAVOUR 486
Index: kernel/tests/i386/via-c7-Esther.test
===================================================================
--- kernel/tests/i386/via-c7-Esther.test (revision 53021)
+++ kernel/tests/i386/via-c7-Esther.test (working copy)
@@ -16,3 +16,4 @@
unusable \
linux-image-2.6-k7 \
linux-image-2.6.18-1-k7
+env KERNEL_FLAVOUR 486
Index: kernel/tests/i386/oqo1.test
===================================================================
--- kernel/tests/i386/oqo1.test (revision 53021)
+++ kernel/tests/i386/oqo1.test (working copy)
@@ -14,3 +14,4 @@
linux-image-2.6.18-1-686-bigmem \
linux-image-2.6.18-1-686 \
linux-image-2.6.18-1-k7
+env KERNEL_FLAVOUR 486
Index: kernel/tests/i386/pentium-3.test
===================================================================
--- kernel/tests/i386/pentium-3.test (revision 53021)
+++ kernel/tests/i386/pentium-3.test (working copy)
@@ -15,3 +15,4 @@
unusable \
linux-image-2.6-k7 \
linux-image-2.6.18-1-k7
+env KERNEL_FLAVOUR 486
Index: kernel/tests/i386/pentium-d-2p.test
===================================================================
--- kernel/tests/i386/pentium-d-2p.test (revision 53021)
+++ kernel/tests/i386/pentium-d-2p.test (working copy)
@@ -15,3 +15,4 @@
unusable \
linux-image-2.6-k7 \
linux-image-2.6.18-1-k7
+env KERNEL_FLAVOUR 486
Index: kernel/tests/i386/pentium.test
===================================================================
--- kernel/tests/i386/pentium.test (revision 53021)
+++ kernel/tests/i386/pentium.test (working copy)
@@ -15,3 +15,4 @@
linux-image-2.6.18-1-686-bigmem \
linux-image-2.6.18-1-686 \
linux-image-2.6.18-1-k7
+env KERNEL_FLAVOUR 486
Index: kernel/tests/i386/pentium-4M-bigmem.test
===================================================================
--- kernel/tests/i386/pentium-4M-bigmem.test (revision 0)
+++ kernel/tests/i386/pentium-4M-bigmem.test (revision 0)
@@ -0,0 +1,20 @@
+cpuinfo pentium-4M.cpuinfo
+machine i686
+majors 2.6
+flavour 686-bigmem
+env SPEAKUP /nonexistent
+kernel-2.6 \
+ linux-image-2.6-686-bigmem \
+ linux-image-2.6-686 \
+ linux-image-2.6-486
+usable \
+ linux-image-2.6-486 \
+ linux-image-2.6-686 \
+ linux-image-2.6-686-bigmem \
+ linux-image-2.6.18-1-486 \
+ linux-image-2.6.18-1-686 \
+ linux-image-2.6.18-1-686-bigmem
+unusable \
+ linux-image-2.6-k7 \
+ linux-image-2.6.18-1-k7
+env KERNEL_FLAVOUR 686-bigmem
Index: kernel/tests/i386/pentium-4M.test
===================================================================
--- kernel/tests/i386/pentium-4M.test (revision 53021)
+++ kernel/tests/i386/pentium-4M.test (working copy)
@@ -16,3 +16,4 @@
unusable \
linux-image-2.6-k7 \
linux-image-2.6.18-1-k7
+env KERNEL_FLAVOUR 486
Index: debian/changelog
===================================================================
--- debian/changelog (revision 53021)
+++ debian/changelog (working copy)
@@ -10,6 +10,11 @@
cases the fact that the CD is already mounted on /cdrom can prevent the CD
from being scanned. Closes: #475639.
+ [ Ian Campbell ]
+ * i386: If the installer is running a -bigmem kernel and the processors
+ support PAE then select a -bigmem kernel for installation. For
+ compatibility with runnign under Xen.
+
[ Updated translations ]
* Amharic (am.po) by tegegne tefera
* Arabic (ar.po) by Ossama M. Khayat
Index: library.sh
===================================================================
--- library.sh (revision 53021)
+++ library.sh (working copy)
@@ -17,6 +17,7 @@
KERNEL_MAJOR="$(uname -r | cut -d . -f 1,2)"
KERNEL_VERSION="$(uname -r | cut -d - -f 1)"
KERNEL_ABI="$(uname -r | cut -d - -f 1,2)"
+KERNEL_FLAVOUR=$(uname -r | cut -d - -f 3-)
MACHINE="$(uname -m)"
NUMCPUS=$(cat /var/numcpus 2>/dev/null) || true
CPUINFO=/proc/cpuinfo
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