If boot parameter filter=* is specified, lvm.conf is generated in the
initrd to restrict PV scanning.
e.g. filter=/dev/disk/by-id/scsi-3600c0ff000d791aceb63ff4901000000
would generate lvm.conf with:
devices { filter = [
"a|^/dev/disk/by-id/scsi-3600c0ff000d791aceb63ff4901000000|", "r|.*|" ]
}
Parameter is optional, if not present, lvm.conf is not generated and LVM
defaults apply (which is to scan all block devices).
Since optional, this is a low-risk change. Follow-up patch will actualy
modify the installation to apply this parameter in grub.conf.
Related: rhbz#510691
Signed-off-by: Alan Pevec <[email protected]>
Signed-off-by: Michael Burns <[email protected]>
---
scripts/ovirt-config-boot | 23 ++++++++++++++++++++++-
1 files changed, 22 insertions(+), 1 deletions(-)
diff --git a/scripts/ovirt-config-boot b/scripts/ovirt-config-boot
index 2961f76..7c5943b 100755
--- a/scripts/ovirt-config-boot
+++ b/scripts/ovirt-config-boot
@@ -108,6 +108,19 @@ ovirt_boot_setup() {
init_script=sbin/real-init
fi
sed -i '/^\/sbin\/udev.*trigger/ a \
+filter=\
+for o in `cat /proc/cmdline` ; do\
+ case $o in\
+ filter=*)\
+ filter=${o#filter=}\
+ ;;\
+ esac\
+done\
+if [ -n "$filter" ]; then\
+ mkdir -p /etc/lvm\
+ echo "devices { filter = [ \\\"a|^$filter|\\\", \\\"r|.*|\\\" ] }" >
/etc/lvm/lvm.conf\
+fi\
+
echo SCSI wait for scans\
/sbin/modprobe scsi_wait_scan\
/sbin/modprobe -r scsi_wait_scan\
@@ -138,7 +151,15 @@ set -e\
# lvm is not static in Fedora
cp /lib$bit/libreadline.so.5 /lib$bit/libncurses.so.5 lib$bit
fi
- find $init_script bin/lvm lib$bit -type f |
+ # add udev rules, so we can use /dev/disk/by-id/* in LVM filter
+ rules=etc/udev/rules.d
+ mkdir -p $rules
+ grep -v -E
'path_id|edd_id|check-cdrom.sh|load_floppy_module.sh|create_floppy_devices'
/$rules/50-udev.rules > $rules/50-udev.rules
+ lud=lib/udev
+ mkdir -p $lud
+ cp -pv /$lud/ata_id /$lud/scsi_id /$lud/usb_id $lud
+ ln -s /sbin/modprobe $lud
+ find $init_script $scsiwait bin/lvm lib$bit $rules $lud -type f -o -type l
|
cpio -H newc --quiet -o |
gzip -9 |
cat $live/$syslinux/initrd0.img - > /boot/initrd0.img
--
1.6.2.5
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