Rescue OVH : Différence entre versions

Version du 11 mai 2013 à 15:52

en raid sans LVM avec md1 en boot et md3 en partition root (md2 swap)

mkdir /mnt/md1
mkdir /mnt/md3
mount /dev/md1  /mnt/md1
mount /dev/md3 /mnt/md3

mount -o bind /proc /mnt/md3/proc
mount -o bind /dev /mnt/md3/dev
mount -o bind /sys/ /mnt/md3/sys
mount /dev/md1 /mnt/md3/boot
cd /mnt/md3
chroot /mnt/md3

sans raid sans LVM

mkdir /mnt/sda1
mkdir /mnt/sda2
mount /dev/sda1 /mnt/sda1
mount /dev/sda2 /mnt/sda2

mount -o bind /proc /mnt/sda2/proc
mount -o bind /dev /mnt/sda2/dev
mount -o bind /sys/ /mnt/sda2/sys
mount /dev/sda1 /mnt/sda2/boot
cd /mnt/sda2
chroot /mnt/sda2

en raid avec LVM avec md1 en boot et md3 en partition root (md2 swap)

mkdir /mnt/md1
mkdir /mnt/md2

mount /dev/md1  /mnt/md1

vgchange -ay main
mount /dev/main/root /mnt/md2

mount -o bind /proc /mnt/md2/proc
mount -o bind /dev /mnt/md2/dev
mount -o bind /sys/ /mnt/md2/sys
mount /dev/md1 /mnt/md2/boot
cd /mnt/md2
chroot /mnt/md2

un petit rsync ?

cd /media/boot
rsync  -auvz * root@91.121.IP.IP:/mnt/sda1 --bwlimit=100
cd /media/slash
rsync  -auvz * root@91.121.IP.IP:/mnt/sda2 --bwlimit=100

un petit probleme de grub avec LVM

d'Abord avant de chrooter

grub-install --root-directory=/mnt/md2 /dev/sda

ensuite on chroot et traditionnel :

grub

grub> find /grub/stage1
find /grub/stage1
 (hd0,0)
grub> device (hd0) /dev/sda
device (hd0) /dev/sda
grub> root (hd0,0)
root (hd0,0)
Filesystem type is ext2fs, partition type 0xfd
grub> setup (hd0)
setup (hd0)
Checking if "/boot/grub/stage1" exists... no
Checking if "/grub/stage1" exists... yes
Checking if "/grub/stage2" exists... yes
Checking if "/grub/e2fs_stage1_5" exists... yes
Running "embed /grub/e2fs_stage1_5 (hd0)"...  15 sectors are embedded.
succeeded
Running "install /grub/stage1 (hd0) (hd0)1+15 p (hd0,0)/grub/stage2 /grub/grub.conf"... succeeded
Done.
grub>quit
quit
#

lancer RAID

mdadm --create /dev/md1 --level=mirror --raid-devices=2 /dev/sda1 missing --metadata=0.90

mdadm --create /dev/md3 --level=mirror --raid-devices=2 /dev/sda3 missing --metadata=0.90

mdadm --create /dev/md2 --level=mirror --raid-devices=2 /dev/sda2 missing --metadata=0.90