Package: grub
Version: 0.97-29
Severity: normal
Tags: patch
The grub package does not currently support installation in a Xen
guest domain because it does not understand the Xen virtual block devices
(/dev/xvd[a-z]).
This support is mainly useful because it allows the Debian installer to
work in a Xen guest without Xen specific workarounds.
It might also be useful for someone who wanted to switch between
a guest between para-virtual and fully-virtualised (HVM) operation.
Patches for grub-install and grub itself (for device.map generation) are
attached.
Thanks,
Ian.
-- System Information:
Debian Release: lenny/sid
APT prefers unstable
APT policy: (500, 'unstable')
Architecture: amd64 (x86_64)
Kernel: Linux 2.6.22-3-amd64 (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
-- no debconf information
--- a/util/grub-install.in 2007-06-26 07:10:40.000000000 +0100
+++ b/util/grub-install.in 2007-12-15 12:50:16.000000000 +0000
@@ -144,13 +144,13 @@
case $1 in
/dev/md*) set -- `getraid_mdadm $1`
esac
- tmp_disk=`echo "$1" | sed -e 's%\([sh]d[a-z]\)[0-9]*$%\1%' \
+ tmp_disk=`echo "$1" | sed -e 's%\(\(s\|h\|xv\)d[a-z]\)[0-9]*$%\1%' \
-e 's%\(d[0-9]*\)p[0-9]*$%\1%' \
-e 's%\(fd[0-9]*\)$%\1%' \
-e 's%/part[0-9]*$%/disc%' \
-e 's%\(c[0-7]d[0-9]*\).*$%\1%' \
-e 's%\(e[0-9]\.[0-9]*\).*$%\1%'`
- tmp_part=`echo "$1" | sed -e 's%.*/[sh]d[a-z]\([0-9]*\)$%\1%' \
+ tmp_part=`echo "$1" | sed -e 's%.*/\(s\|h\|xv\)d[a-z]\([0-9]*\)$%\2%' \
-e 's%.*d[0-9]*p%%' \
-e 's%.*/fd[0-9]*$%%' \
-e 's%.*/floppy/[0-9]*$%%' \
--- a/lib/device.c
+++ b/lib/device.c
@@ -395,6 +395,16 @@
#endif
}
+static void
+get_xvd_disk_name (char *name, int unit)
+{
+#ifdef __linux__
+ sprintf (name, "/dev/xvd%c", unit + 'a');
+#else
+# warning "Xen XVD drives cannot be guesst in your operating system."
+ *name = 0;
+#endif
+}
#ifdef __linux__
static void
get_dac960_disk_name (char *name, int controller, int drive)
@@ -770,7 +780,28 @@
num_hd++;
}
}
-
+
+#ifdef __linux__
+ /* Xen Virtual Disks. */
+ for (i = 0; i < 16; i++)
+ {
+ char name[16];
+
+ get_xvd_disk_name (name, i);
+ if (check_device (name))
+ {
+ (*map)[num_hd + 0x80] = strdup (name);
+ assert ((*map)[num_hd + 0x80]);
+
+ /* If the device map file is opened, write the map. */
+ if (fp)
+ fprintf (fp, "(hd%d)\t%s\n", num_hd, name);
+
+ num_hd++;
+ }
+ }
+#endif
+
#ifdef __linux__
/* This is for DAC960 - we have
/dev/rd/c<controller>d<logical drive>p<partition>.
