On Wed, Jul 2, 2014 at 10:25 AM, Damien Moity <address@hidden> wrote:
Hello,
I wrote a script that allows me to install the distribution "debian squeeze"
on a RAID 0 but the script crashes when installing grub :
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grub-install --modules="raid mdraid part_gpt ext2" /dev/md0
Is it software MD raid or fake-raid (dmraid)? It appears pure software
raid, but just to be sure ...
/usr/sbin/grub-setup: warn: Attempting to install GRUB to a partitionless
disk. This is a BAD idea..
/usr/sbin/grub-setup: error: embedding is not possible, but this is required
when the root device is on a RAID array or LVM volume.
-------
Grub version :
-------
update-grub -v
grub-mkconfig (GRUB) 1.98+20100804-14+squeeze1
grub-install -v
grub-install (GRUB) 1.98+20100804-14+squeeze1
-------
First I boot on a "System Rescue CD" and I create 'logical raid0' with
'mdadm' :
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mdadm -D /dev/md0
/dev/md0:
Version : 1.2
Creation Time : Tue Jul 1 14:07:21 2014
Raid Level : raid0
Array Size : 52427776 (50.00 GiB 53.69 GB)
Raid Devices : 2
Total Devices : 2
Persistence : Superblock is persistent
Update Time : Tue Jul 1 14:07:21 2014
State : clean
Active Devices : 2
Working Devices : 2
Failed Devices : 0
Spare Devices : 0
Chunk Size : 512K
Name : sysresccd:0 (local to host sysresccd)
UUID : 972ee921:bc2ecdb5:0c9b9350:14cbf787
Events : 0
Number Major Minor RaidDevice State
0 8 0 0 active sync /dev/sda
1 8 16 1 active sync /dev/sdb
-------
I create raid0 partitions with 'gdisk' :
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address@hidden /root % gdisk -l /dev/md0
GPT fdisk (gdisk) version 0.8.8
Partition table scan:
MBR: protective
BSD: not present
APM: not present
GPT: present
Found valid GPT with protective MBR; using GPT.
Disk /dev/md0: 104855552 sectors, 50.0 GiB
Logical sector size: 512 bytes
Disk identifier (GUID): 45EC12F7-47B7-4339-A219-199F35A51B5F
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 104855518
Partitions will be aligned on 2048-sector boundaries
Total free space is 2014 sectors (1007.0 KiB)
Number Start (sector) End (sector) Size Code Name
1 2048 18431 8.0 MiB EF02 BIOS boot partition
2 18432 41961471 20.0 GiB EF00 Linux filesystem
3 41961472 44058623 1024.0 MiB 8200 Linux swap
4 44058624 104855518 29.0 GiB 8300 Linux filesystem
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I make filesystem on created partitions :
* part1 (md0p1) with mkfs.ext3 => bios_grub
* part2 (md0p2) with mkfs.ext3 => /
* part3 (md0p3) with mkswap => swap
* part4 (md0p4) with mkswap => /srv
I install debian distribution on md0p2 :
* partimage -B=foo -b restore /dev/md0p2 my_image_debian
* e2fsck -f -y /dev/md0p2
* resize2fs -f /dev/md0p2
I mount ressources :
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mount -l | grep md0
/dev/md0p2 on /mnt/gentoo type ext3 (rw)
/dev/md0p4 on /mnt/gentoo/srv type ext3 (rw)
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I init fstab and mtab with the new partitions.
And now i want to install grub. I write disk on
/mnt/gentoo/boot/grub/device.map :
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cat /mnt/gentoo/boot/grub/device.map
(md0) /dev/disk/by-id/md-uuid-972ee921:bc2ecdb5:0c9b9350:14cbf787
(md0p2) /dev/disk/by-id/md-uuid-972ee921:bc2ecdb5:0c9b9350:14cbf787-part2
(hd0) /dev/disk/by-id/ata-VBOX_HARDDISK_VB4b33f8ee-87039d31
(hd1) /dev/disk/by-id/ata-VBOX_HARDDISK_VBc34d645e-16ef1e20
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I update grub with : chroot /mnt/gentoo /bin/bash update-grub and and after
installation of grub crashes.
Do you have any ideas on what could be wrong ? I read many forums but I have
not found a solution.
Thanks for your help.
Damien.
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