Description:

When using exta/grub2-bios 1.99~rc2.r3238-1 I get the following:

[root@charlie ~]# grub-install --no-floppy /dev/sda
/sbin/grub-setup: warn: Your core.img is unusually large. It won't fit in the embedding area..
/sbin/grub-setup: warn: Embedding is not possible. GRUB can only be installed in this setup by using blocklists. However, blocklists are UNRELIABLE and their use is discouraged..
/sbin/grub-setup: error: will not proceed with blocklists.

This does not happen when using extra/grub2-bios 1.99~rc1-3 .. my setup is as below:

[root@charlie ~]# cat /etc/mdadm.conf
## boot array
ARRAY /dev/md0 level=raid1 num-devices=3 UUID=c76e335f:388e7fff:c4d48bf1:d5b45aa4
## lvm array
ARRAY /dev/md1 level=raid5 num-devices=3 UUID=b3e5db17:39da29a7:b0bbd438:e6d07c86

[root@charlie ~]# cat /proc/mdstat
Personalities : [raid1] [raid6] [raid5] [raid4]
md1 : active raid5 sda2[0] sdc2[2] sdb2[1]
624944384 blocks level 5, 64k chunk, algorithm 2 [3/3] [UUU]

md0 : active raid1 sda1[0] sdc1[2] sdb1[1]
96256 blocks [3/3] [UUU]

unused devices: <none>

[root@charlie ~]# pvs
PV VG Fmt Attr PSize PFree
/dev/md1 group0 lvm2 a- 595.99g 0
[root@charlie ~]# vgs
VG #PV #LV #SN Attr VSize VFree
group0 1 3 0 wz--n- 595.99g 0
[root@charlie ~]# lvs
LV VG Attr LSize Origin Snap% Move Log Copy% Convert
root group0 -wi-ao 120.00g
storage group0 -wi-ao 471.99g
swap group0 -wc-ao 4.00g

[root@charlie ~]# mount
proc on /proc type proc (rw,nosuid,nodev,noexec,relatime)
sys on /sys type sysfs (rw,nosuid,nodev,noexec,relatime)
udev on /dev type devtmpfs (rw,nosuid,relatime,size=10240k,nr_inodes=498650,mode=755)
/dev/mapper/group0-root on / type ext4 (rw,commit=0)
fusectl on /sys/fs/fuse/connections type fusectl (rw,relatime)
devpts on /dev/pts type devpts (rw)
shm on /dev/shm type tmpfs (rw,nosuid,nodev)
/dev/md0p1 on /boot type ext3 (rw,commit=0)
/dev/mapper/group0-storage on /storage type ext4 (rw,commit=0)
none on /proc/bus/usb type usbfs (rw,busgid=108,busmode=0775,devgid=108,devmode=0664)
rpc_pipefs on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw)
nfsd on /proc/fs/nfsd type nfsd (rw,noexec,nosuid,nodev)
none on /proc/fs/vmblock/mountPoint type vmblock (rw)
gvfs-fuse-daemon on /home/ahurt/.gvfs type fuse.gvfs-fuse-daemon (rw,nosuid,nodev,user=ahurt)
[root@charlie ~]# lvs

All latest updates as of today ... please let me know if you need any more information.