Hello Everyone

I have a remote CentOS 6.4 server (with KVM access), when I received the server it was running with LVM on single disk (sda)

I managed to remove LVM and install raid 1 in sda and sdb disks

the mirroring is working fine, my only issue now is that everytime I reboot the server I got the grub command line and I have manually boot using comand

grub> configfile (hd1,0)/grub/grub.conf

OR

grub> configfile (hd0,0)/grub/grub.conf

then it will boot fine without any error.

Any idea how can I make it auto boot ?

I tried almost everything I can find in the internet.

Note: each disk (sda & sdb) is 2TB size, could this be the problem?

. # df -h Filesystem Size Used Avail Use% Mounted on /dev/md2 1.8T 1.1G 1.7T 1% / tmpfs 16G 0 16G 0% /dev/shm /dev/md0 1.9G 69M 1.8G 4% /boot

# cat /proc/mdstat

Personalities : [raid1] md2 : active raid1 sda3[2] sdb3[0] 1940882240 blocks super 1.2 [2/2] [UU]

md1 : active raid1 sdb2[0] sda2[2] 10482176 blocks super 1.2 [2/2] [UU]

md0 : active raid1 sdb1[0] sda1[1] 2008000 blocks [2/2] [UU]

unused devices: <none>

# fdisk -l /dev/sda

Disk /dev/sda: 2000.4 GB, 2000398934016 bytes 255 heads, 63 sectors/track, 243201 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x000b0530

Device Boot Start End Blocks Id System /dev/sda1 * 1 250 2008093+ 83 Linux /dev/sda2 251 1556 10490445 82 Linux swap / Solaris /dev/sda3 1557 243201 1941013462+ fd Linux raid autodetect

# fdisk -l /dev/sdb

Disk /dev/sdb: 2000.4 GB, 2000398934016 bytes 255 heads, 63 sectors/track, 243201 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0xadb3bd62

Device Boot Start End Blocks Id System /dev/sdb1 * 1 250 2008093+ fd Linux raid autodetect /dev/sdb2 251 1556 10490445 82 Linux swap / Solaris /dev/sdb3 1557 243201 1941013462+ fd Linux raid autodetect

# cat grub.conf

# grub.conf generated by anaconda # # Note that you do not have to rerun grub after making changes to this file # NOTICE: You have a /boot partition. This means that # all kernel and initrd paths are relative to /boot/, eg. # root (hd0,0) # kernel /vmlinuz-version ro root=/dev/mapper/vg_srv6953-lv_root # initrd /initrd-[generic-]version.img #boot=/dev/sda default=0 timeout=5 splashimage=(hd1,0)/grub/splash.xpm.gz hiddenmenu title CentOS (2.6.32-358.18.1.el6.x86_64) root (hd1,0) kernel /vmlinuz-2.6.32-358.18.1.el6.x86_64 ro root=/dev/md2 KEYBOARDTYPE=pc KEYTABLE=us LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 crashkernel=auto rhgb quiet rd_retry=20 initrd /initramfs-2.6.32-358.18.1.el6.x86_64.img title CentOS (2.6.32-358.el6.x86_64) root (hd1,0) kernel /vmlinuz-2.6.32-358.el6.x86_64 ro root=/dev/md2 KEYBOARDTYPE=pc KEYTABLE=us LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 crashkernel=auto rhgb quiet initrd /initramfs-2.6.32-358.el6.x86_64.img