Hello, I have two disks sda (contains the system) sdb (nothing), and i want to make a RAID1. I'd like to know if when i use fdisk on my sdB device, i also have to change the sda2 type into fd Linux raid autodetect? my disk repartition : sda1 / sda2 (extended partition) sda5 swap Thanks,
You can use one of these tutorials: If you have an LVM system: http://www.howtoforge.com/how-to-se...-system-incl-grub2-configuration-ubuntu-10.04 Otherwise: http://www.howtoforge.com/how-to-se...-system-incl-grub2-configuration-ubuntu-10.04
hi, I have 2 disks sda and sdb too, and sda disk does't have /boot partitiion, only / It is possible to create raid array without creating /boot partition? Thanks
ok, my current server 10.04 running without LVM. And I can't use second tuturial. I just created /dev/md1 for /dev/sda1 (root) and /dev/md5 for /dev/sda5 (swap) I update files fstab, mtab... like in tuturial, but when I reboot server, server does't boot up. Line like "/dev/fd0 cannot mount" or some thing appeared. How can I apply second tutorial for my server? Thanks.
So you used this tutorial? http://www.howtoforge.com/how-to-se...-system-incl-grub2-configuration-ubuntu-10.04
here is my messages from ssh client before reboot: root@ubuntu:/# fdisk -l Disk /dev/sdb: 251.1 GB, 251059544064 bytes 255 heads, 63 sectors/track, 30522 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: 0x000590a0 Device Boot Start End Blocks Id System /dev/sdb1 * 1 29778 239185920 fd Linux raid autodetect /dev/sdb2 29778 30523 5987329 5 Extended /dev/sdb5 29778 30523 5987328 fd Linux raid autodetect Disk /dev/sda: 251.1 GB, 251059544064 bytes 255 heads, 63 sectors/track, 30522 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: 0x000a20ad Device Boot Start End Blocks Id System /dev/sda1 * 1 29778 239185920 83 Linux /dev/sda2 29778 30523 5987329 5 Extended /dev/sda5 29778 30523 5987328 82 Linux swap / Solaris Disk /dev/md1: 244.9 GB, 244926316544 bytes 2 heads, 4 sectors/track, 59796464 cylinders Units = cylinders of 8 * 512 = 4096 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 Disk /dev/md1 doesn't contain a valid partition table Disk /dev/md5: 6130 MB, 6130958336 bytes 2 heads, 4 sectors/track, 1496816 cylinders Units = cylinders of 8 * 512 = 4096 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 Disk /dev/md5 doesn't contain a valid partition table root@ubuntu:/# mdadm -D /dev/md1 /dev/md1: Version : 00.90 Creation Time : Mon May 9 12:49:27 2011 Raid Level : raid1 Array Size : 239185856 (228.11 GiB 244.93 GB) Used Dev Size : 239185856 (228.11 GiB 244.93 GB) Raid Devices : 2 Total Devices : 1 Preferred Minor : 1 Persistence : Superblock is persistent Update Time : Mon May 9 13:00:30 2011 State : clean, degraded Active Devices : 1 Working Devices : 1 Failed Devices : 0 Spare Devices : 0 UUID : 63b56a30:4df0a2c6:e368bf24:bd0fce41 (local to host ubuntu) Events : 0.77 Number Major Minor RaidDevice State 0 0 0 0 removed 1 8 17 1 active sync /dev/sdb1 root@ubuntu:/# root@ubuntu:/# mdadm -D /dev/md5 /dev/md5: Version : 00.90 Creation Time : Mon May 9 12:49:39 2011 Raid Level : raid1 Array Size : 5987264 (5.71 GiB 6.13 GB) Used Dev Size : 5987264 (5.71 GiB 6.13 GB) Raid Devices : 2 Total Devices : 1 Preferred Minor : 5 Persistence : Superblock is persistent Update Time : Mon May 9 12:50:51 2011 State : clean, degraded Active Devices : 1 Working Devices : 1 Failed Devices : 0 Spare Devices : 0 UUID : f561fe59:059b51ea:e368bf24:bd0fce41 (local to host ubuntu) Events : 0.3 Number Major Minor RaidDevice State 0 0 0 0 removed 1 8 21 1 active sync /dev/sdb5 root@ubuntu:/# root@ubuntu:/# cat /proc/mdstat Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [raid4] [raid10] md5 : active raid1 sdb5[1] 5987264 blocks [2/1] [_U] md1 : active raid1 sdb1[1] 239185856 blocks [2/1] [_U] unused devices: <none> root@ubuntu:/# root@ubuntu:/# cat /etc/mdadm/mdadm.conf # mdadm.conf # # Please refer to mdadm.conf(5) for information about this file. # # by default, scan all partitions (/proc/partitions) for MD superblocks. # alternatively, specify devices to scan, using wildcards if desired. DEVICE partitions # auto-create devices with Debian standard permissions CREATE owner=root group=disk mode=0660 auto=yes # automatically tag new arrays as belonging to the local system HOMEHOST <system> # instruct the monitoring daemon where to send mail alerts MAILADDR root # definitions of existing MD arrays # This file was auto-generated on Mon, 09 May 2011 12:42:04 +0800 # by mkconf $Id$ ARRAY /dev/md1 level=raid1 num-devices=2 UUID=63b56a30:4df0a2c6:e368bf24:bd0fce41 ARRAY /dev/md5 level=raid1 num-devices=2 UUID=f561fe59:059b51ea:e368bf24:bd0fce41 root@ubuntu:/# root@ubuntu:/# mount /dev/md1 on / type ext4 (rw,errors=remount-ro) proc on /proc type proc (rw,noexec,nosuid,nodev) none on /sys type sysfs (rw,noexec,nosuid,nodev) none on /sys/fs/fuse/connections type fusectl (rw) none on /sys/kernel/debug type debugfs (rw) none on /sys/kernel/security type securityfs (rw) none on /dev type devtmpfs (rw,mode=0755) none on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=0620) none on /dev/shm type tmpfs (rw,nosuid,nodev) none on /var/run type tmpfs (rw,nosuid,mode=0755) none on /var/lock type tmpfs (rw,noexec,nosuid,nodev) none on /lib/init/rw type tmpfs (rw,nosuid,mode=0755) /dev/md1 on /mnt/md1 type ext4 (rw) root@ubuntu:/# cat /etc/fstab # /etc/fstab: static file system information. # # Use 'blkid -o value -s UUID' to print the universally unique identifier # for a device; this may be used with UUID= as a more robust way to name # devices that works even if disks are added and removed. See fstab(5). # # <file system> <mount point> <type> <options> <dump> <pass> proc /proc proc nodev,noexec,nosuid 0 0 # / was on /dev/sda1 during installation #UUID=eb2d7178-e0a9-4a19-b6a2-117468b054be / ext4 errors=remount-ro 0 1 /dev/md1 / ext4 errors=remount-ro 0 1 # swap was on /dev/sda5 during installation #UUID=8a5751a9-f23f-4dfd-9a72-6a48eaa46999 none swap sw 0 0 /dev/md5 none swap sw 0 0 /dev/fd0 /media/floppy0 auto rw,user,noauto,exec,utf8 0 0 root@ubuntu:/# root@ubuntu:/# cat /etc/mtab /dev/md1 / ext4 rw,errors=remount-ro 0 0 proc /proc proc rw,noexec,nosuid,nodev 0 0 none /sys sysfs rw,noexec,nosuid,nodev 0 0 none /sys/fs/fuse/connections fusectl rw 0 0 none /sys/kernel/debug debugfs rw 0 0 none /sys/kernel/security securityfs rw 0 0 none /dev devtmpfs rw,mode=0755 0 0 none /dev/pts devpts rw,noexec,nosuid,gid=5,mode=0620 0 0 none /dev/shm tmpfs rw,nosuid,nodev 0 0 none /var/run tmpfs rw,nosuid,mode=0755 0 0 none /var/lock tmpfs rw,noexec,nosuid,nodev 0 0 none /lib/init/rw tmpfs rw,nosuid,mode=0755 0 0 /dev/md1 /mnt/md1 ext4 rw 0 0 root@ubuntu:/# cat /etc/grub.d/09_swraid1_setup #!/bin/sh exec tail -n +3 $0 # This file provides an easy way to add custom menu entries. Simply type the # menu entries you want to add after this comment. Be careful not to change # the 'exec tail' line above. menuentry 'Ubuntu, with Linux 2.6.32-21-server' --class ubuntu --class gnu-linux --class gnu --class os { recordfail insmod raid insmod mdraid insmod ext2 set root='(md1)' linux /boot/vmlinuz-2.6.32-21-generic-pae root=/dev/md1 ro quiet initrd /boot/initrd.img-2.6.32-21-generic-pae } root@ubuntu:/# root@ubuntu:/# cd /boot root@ubuntu:/boot# ls abi-2.6.32-21-generic-pae grub memtest86+.bin vmcoreinfo-2.6.32-21-generic-pae config-2.6.32-21-generic-pae initrd.img-2.6.32-21-generic-pae System.map-2.6.32-21-generic-pae vmlinuz-2.6.32-21-generic-pae root@ubuntu:/boot# root@ubuntu:/boot# uname -r 2.6.32-21-generic-pae
hmm.. in your tutorial exist fdisk command for /dev/sdb, how /dev/sda can become autodetect before first reboot?
