Rename Online_Soft_RAIDx_StandardServer.sh to Online_Soft_RAID1_StandardServer.sh
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Online_Soft_RAID1_StandardServer.sh
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Online_Soft_RAID1_StandardServer.sh
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#!/bin/bash
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# Ce script est une adaptation par jlecour du script de bserie
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# Voici les adaptations :
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# - /boot fait 500M
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# - pas de LVM
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# - on n'installe que le paquet virtuel linux-image-amd64 (pas le paquet réel)
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echo "ce script ne doit pas être joué automatiquement"
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echo "les commandes sont à jouer manuellement, par copier/coller"
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exit 1
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# Le script suppose que vous avez installé votre dedibox avec le partionnement par défaut.
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# /boot sda1 2OOM, / sda2 2G, swap 1G sda3.
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# / doit être sur sda2. Sinon adapter le script !
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# Enfin un fstab est généré, grub et le kernel sont réinstallés.
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ROOT_PART=/dev/md127
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export LC_ALL=C
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# Dirty hack for rescue Ubuntu 16.04
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touch /boot/vmlinuz-pouet
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touch /boot/initrd.img-pouet
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# disable swap
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swapoff -a
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cd /mnt
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# mount /
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mkdir root_in_ram rootfs home var usr log
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mount $ROOT_PART /mnt/rootfs/
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# copy all the filesystem in ram
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mount -t tmpfs none /mnt/root_in_ram -o size=90%
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rsync -a /mnt/rootfs/ /mnt/root_in_ram/
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# unount rootfs to recreate partitions
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umount /mnt/rootfs
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# stop soft raid
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mdadm --stop /dev/md{125..127}
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# NOTE : you need wipe all partition to be linked
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# with /dev/md12*
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# example : wipefs -a /dev/sda1
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# NOTE: sleep 1 second between each command
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# to be able to copy/paste the whole bloc
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# Create a GPT label. (Removes all parts).
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parted -s /dev/sda mklabel gpt
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sleep 1
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# bios_grub GPT *mandatory*
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parted -a minimal -s /dev/sda mkpart primary 0M 1M
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sleep 1
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parted -s /dev/sda set 1 bios_grub on
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sleep 1
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# /boot
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parted -a minimal -s /dev/sda mkpart primary ext4 1M 500M
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sleep 1
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parted -s /dev/sda set 2 boot on
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parted -s /dev/sda set 2 raid on
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sleep 1
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# /
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parted -a minimal -s /dev/sda mkpart primary ext4 500M 1500M
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sleep 1
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parted -s /dev/sda set 3 raid on
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sleep 1
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# /var
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parted -a minimal -s /dev/sda mkpart primary ext4 1500M 11500M
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sleep 1
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parted -s /dev/sda set 4 raid on
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sleep 1
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# /usr
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parted -a minimal -s /dev/sda mkpart primary ext4 11500M 16500M
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sleep 1
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parted -s /dev/sda set 5 raid on
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sleep 1
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# /tmp
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parted -a minimal -s /dev/sda mkpart primary ext4 16500M 17500M
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sleep 1
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parted -s /dev/sda set 6 raid on
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sleep 1
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# swap1
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parted -a minimal -s /dev/sda mkpart primary linux-swap 17500M 18000M
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sleep 1
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parted -s /dev/sda set 7 raid on
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sleep 1
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# swap2
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parted -a minimal -s /dev/sda mkpart primary linux-swap 18000M 18500M
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sleep 1
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parted -s /dev/sda set 8 raid on
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sleep 1
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# /home
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parted -a minimal -s /dev/sda mkpart primary ext4 18500M 100%
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sleep 1
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parted -s /dev/sda set 9 raid on
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sleep 1
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#Copy parts to sdb
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sgdisk -R=/dev/sdb /dev/sda
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sgdisk -G /dev/sdb
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partprobe /dev/sda
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partprobe /dev/sdb
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# RAID1 for systems.
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# Metadata 0.90 as some OVH kernel need it to boot.
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for part in {2,3,4,5,6,7,8,9}; do
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mdadm --create /dev/md${part} --metadata=0.90 --level=raid1 --raid-devices=2 /dev/{sda,sdb}${part}
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done
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# Make filesystems
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mkfs.ext4 -LBOOT /dev/md2 1>/dev/null
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mkfs.ext4 -LROOTFS /dev/md3 1>/dev/null
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mkfs.ext4 -LVAR /dev/md4 1>/dev/null
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mkfs.ext4 -LUSR /dev/md5 1>/dev/null
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mkfs.ext4 -LTMP /dev/md6 1>/dev/null
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mkswap -f -LSWAP1 /dev/md7 1>/dev/null
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mkswap -f -LSWAP2 /dev/md8 1>/dev/null
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mkfs.ext4 -LHOME /dev/md9 1>/dev/null
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# mount partitions
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mount -LROOTFS rootfs
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mount -LHOME home
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mount -LVAR var
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mount -LUSR usr
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# Copy data from RAM.
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rsync -a root_in_ram/home/ home/
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rsync -a root_in_ram/var/ var/
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rsync -a root_in_ram/usr/ usr/
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rsync -a \
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--exclude="home/**" \
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--exclude="var/**" \
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--exclude="usr/**" \
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root_in_ram/ rootfs/
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umount home var usr
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# Generate fstab.
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cat <<EOT > rootfs/etc/fstab
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LABEL=ROOTFS / ext4 errors=remount-ro 0 1
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LABEL=BOOT /boot ext4 defaults 0 2
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LABEL=HOME /home ext4 defaults 0 2
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LABEL=TMP /tmp ext4 defaults 0 2
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LABEL=USR /usr ext4 defaults 0 2
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LABEL=VAR /var ext4 defaults 0 2
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LABEL=SWAP1 none swap sw 0 0
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LABEL=SWAP2 none swap sw 0 0
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EOT
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# Chroot + reconfigure grub-pc
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mount -t proc none /mnt/rootfs/proc
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mount -o bind /dev /mnt/rootfs/dev
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mount -o bind /dev/pts /mnt/rootfs/dev/pts
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mount -t sysfs sys /mnt/rootfs/sys
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rm -rf /mnt/rootfs/boot/*
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chroot /mnt/rootfs/ bash
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export LC_ALL=C
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mount /boot
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mount /usr
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mount /var
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mount /tmp
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chmod 1777 /tmp
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# generate RAID configuration
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/usr/share/mdadm/mkconf > /etc/mdadm/mdadm.conf
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# purge des paquets de Grub et du noyau, pour réinitialiser complètement les config
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apt purge -y grub-common grub-pc grub-pc-bin grub2-common
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for kernel_pkg in $(dpkg -l | grep linux-image | awk '{ print $2 }'); do apt purge -y $kernel_pkg; done
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# réinstallation des paquets
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# Note: bien installer Grub sur les 2 disques sda et sdb
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apt install -y grub-common grub-pc grub-pc-bin grub2-common linux-image-amd64
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# paquets utiles pour evolixisation par Ansible
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apt install -y sudo python python-apt
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# ajouter l'utilisateur dans le groupe sudo
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# ça facilite le passage d'Ansible (sans root)
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usermod -a -G sudo jlecour
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passwd jlecour
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# change root password
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passwd
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# permit root login via SSH with password
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sed -i 's/without-password/yes/' /etc/ssh/sshd_config
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exit
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echo "Evolix partitioning done... You can now reboot!"
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