Installed 9.10 server with RAID1 + LVM:
Code:
$ cat /proc/mdstat
Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [raid4] [raid10]
md1 : active raid1 sdb2[1] sda2[0]
311588608 blocks [2/2] [UU]
md0 : active raid1 sda1[0] sdb1[1]
979840 blocks [2/2] [UU]
unused devices: <none>
Set md0 as /boot and md1 as LVM thus:
Code:
~$ df
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/mapper/M3N78EM_VG1-M3N78EM_V2_ROOT
48057224 817684 44798324 2% /
udev 963200 244 962956 1% /dev
none 963200 0 963200 0% /dev/shm
none 963200 36 963164 1% /var/run
none 963200 0 963200 0% /var/lock
none 963200 0 963200 0% /lib/init/rw
/dev/mapper/M3N78EM_VG1-M3N78EM_V3_HOME
253832836 191600 240747236 1% /home
/dev/md0 964408 32892 882524 4% /boot
LVM volume 1 of the (single) volume group is 5 GB swap space.
fdisk shows something:
Code:
~$ sudo fdisk -l
Disk /dev/sda: 320.1 GB, 320072933376 bytes
255 heads, 63 sectors/track, 38913 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x000e78e2
Device Boot Start End Blocks Id System
/dev/sda1 * 1 122 979933+ fd Linux raid autodetect
/dev/sda2 123 38913 311588707+ fd Linux raid autodetect
Disk /dev/sdb: 320.1 GB, 320072933376 bytes
255 heads, 63 sectors/track, 38913 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x0002d200
Device Boot Start End Blocks Id System
/dev/sdb1 * 1 122 979933+ fd Linux raid autodetect
/dev/sdb2 123 38913 311588707+ fd Linux raid autodetect
Disk /dev/md0: 1003 MB, 1003356160 bytes
2 heads, 4 sectors/track, 244960 cylinders
Units = cylinders of 8 * 512 = 4096 bytes
Disk identifier: 0x00000000
Disk /dev/md0 doesn't contain a valid partition table
Disk /dev/md1: 319.1 GB, 319066734592 bytes
2 heads, 4 sectors/track, 77897152 cylinders
Units = cylinders of 8 * 512 = 4096 bytes
Disk identifier: 0x00000000
Disk /dev/md1 doesn't contain a valid partition table
Neither MD devices contain a valid partition table -- is that normal?
When the system boots, GRUB does not display at all -- it just boots. There is no menu.lst file in /boot/grub. And, grub is not installed as in:
Code:
$ grub
The program 'grub' is currently not installed. You can install it by typing:
sudo apt-get install grub
grub: command not found
My main concern is will the system still boot if /dev/sda becomes non-operational? What happened to grub with 9.10?
Thanks
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