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mouflons and penguins just another boring linux blog about contact ελληνικά search recent posts installing a software raid 10 debian system with luks disk encryption installing ceph using ceph-deploy installing wiki.js on ubuntu 16.04 setting up a dual nic, lxd container installing rocket.chat on debian recent comments theodotos andreou on installing a software raid 10 debian system with luks disk encryption joshua palmer on installing a software raid 10 debian system with luks disk encryption theodotos andreou on installing a software raid 10 debian system with luks disk encryption joshua palmer on installing a software raid 10 debian system with luks disk encryption theodotos andreou on installing a software raid 10 debian system with luks disk encryption archives february 2018 june 2017 may 2017 january 2017 december 2016 october 2016 september 2016 april 2016 march 2016 august 2015 june 2015 may 2015 april 2015 august 2014 categories general linux uncategorized meta log in entries rss comments rss wordpress.org installing a software raid 10 debian system with luks disk encryption february 3, 2018 by theodotos andreou · 8 comments in this guide we will be installing debian 9 (aka stretch) on a physical server with 4 disks. the role of this machice is to be used as a storage/nas system. we will create a software raid 10 setup, with lvm and luks full disk encryption. our goals: install a debian 9 with raid10/lvm/luks. secure ssh. enable firewall (ufw). setup bonding with the two network cards. setup remote system unlock with dropbear and initramfs . setup disk-monitoring with smartmontools and mdadm . setup kexec for faster reboots. computer specs type: hp proliant microserver cpu: amd turion(tm) ii neo n40l dual-core processor ram: 2gb disks: 4x3tb sata network: broadcom limited netxtreme bcm5723 gigabit ethernet pcie (on board) intel corporation 82574l gigabit network connection (extra) assumptions server ip: 192.168.1.10 netmask: 255.255.255.0 gateway ip: 192.168.1.1 dns ip: 192.168.1.1 hostname: storage.example.com install debian stretch basic settings it would probably be more clear if there were screenshots for each step, but this was an installation on a physical server and taking photos for each step, opposes my laziness :). just follow the instructions and you will be fine. choose: install language: english country: other europe: cyprus country to base default locale settings: united states keymap to use: american english primary network interface: enp3s0: broadcom limeted netxtream bcm5723 gigabit ethernet pcie let it get an ip from dhcp hostname: storage domain name: example.com root password: somethingbigandunpredictable re-enter password to verify: somethingbigandunpredictable full name: sysadmin username: admin choose a password for the new user: alsosomethingbigandunpredictable re-enter password to verify: alsosomethingbigandunpredictable select your time zone: asia/nicosia partitioning method: manual feel free to adjust the above according to your own preferences. partitioning there are 4 disks of 3tb each (3.0 tb sata): scsi1 (0,0,0) (sda) scsi2 (0,0,0) (sdb) scsi3 (0,0,0) (sdc) scsi4 (0,0,0) (sdd) not really scsi but sata in fact. partition the devices then create a raid partition for /boot : select the free space of sda and ‘enter’ create a new partition new partition size: 512 mb location of new partition: beginning use as: physical volume for raid done setting up the partition lastly create the raid partition to be used by the encrypted volume: select the free space of sda and ‘enter’ create a new partition new partition size: 3.0 tb location of new partition: beginning use as: physical volume for raid done setting up the partition repeat the above steps for sdb, sdc and sdd. setup software raid 10 first select ‘configure software raid’ and follow these steps: write the changes to the storage devices and configure raid? yes the we create the software raid (md) devices. first we create device md0 for /boot: create md device raid10 number of active devices inn the raid10 array: 4 number of spare devices inn the raid10 array: 0 active devices for the raid10 array (use ‘space bar’ to select) /dev/sda2 /dev/sdb2 /dev/sdc2 /dev/sdd2 press ‘continue’ when done. then we create the software raid device to be used for the encrypted volume ( md1 ): create md device raid10 number of active devices inn the raid10 array: 4 number of spare devices inn the raid10 array: 0 active devices for the raid10 array (use the ‘space bar’ to select) /dev/sda3 /dev/sdb3 /dev/sdc3 /dev/sdd3 press ‘continue’ when done. press ‘finish’ when done. create the /boot volume when done press ‘finish partitioning and write changes to disk’.` when finished you will see a ‘raid10 device #0 1gb software raid device’: select: #1 1.0gb use as: ext4 journaling file system mount point: /boot done setting up the partition setup the encrypted volume we will be using the software raid /dev/md1 device for the encrypted volume. now select ‘configure encrypted volumes’ and follow these steps: write the changes to disk and configure encrypted volumes? yes create encrypted volumes select: /dev/md1 erase data: yes (this will take a long time) done setting up the partition write the changes to disk and configure encrypted volumes? yes finish encryption passphrase: myverylongencryptionpassphrase re-enter the passphrase to verify: myverylongencryptionpassphrase setup lvm next we select the ‘configure the logical volume manager’ option and follow these steps: write the changes to disks and configure lvm? yes create volume group volume group name: vg00 devices for the new volume group: /dev/mapper/md1_crypt then we create the logical volumes (lv). first let’s create a swap volume: create logical volume volume group: vg00 logical volume name: swap logical volume size: 2048mb (2g is more than enough for this system) lastly we create the system (root) volume. on an enterprise installation we may want to use different volumes for /usr, /home, /var, etc but for a home installation we will be fine to use just one. create logical volume volume group: vg00 logical volume name: root logical volume size: 5996818mb (all available space) press ‘finish’ when done. start the installation after all the steps are completed these logical volumes will be present on the system: lvm vg vg00, lv root 0 6.0 tb lvm vg vg00, lv swap 0 2.0 gb create the root filesystem under the ‘lvm vg vg00, lv root 0 6.0 tb’ line select the ‘#1 6.0tb’ option: use as: ext4 journaling file system mount point: / done setting up this partition create the swap space under the ‘lvm vg vg00, lv swap 0 2.0 gb’ line select the ‘#1 2.0gb’ option: use as: swap area done setting up this partition now we are ready to write the changes and start the installation. press the ‘finish partitioning and write changes to disk’ option to continue: write the changes to disks? yes wait for the base install to finish. then select a country close to you. no debian mirrors in cyprus so i use uk: debian archive mirror country: united kingdom debian archive mirror: ftp.uk.debian.org http proxy: (none) wait for the apt configuration to finish. participate in the package usage survey: no choose software to install: ssh server standard system utilities wait while software is installing install the grub boot loader to the master boot record. device for boot loader installation: /dev/sda wait for the installation to finish and reboot. remember to remove the usb during the reboot cycle. post install steps during start-up you will see the ‘please unlock md1_crypt’ prompt. type your luks passphrase to unlock the disk and continue. update and upgrade login as root : # apt update && apt -y dist-upgrade install essential packages # apt -y install vim htop multitail ntp byobu ufw unattended-upgrades downtimed secure ssh you need to generate an ssh key pair on you pc, if you don’t have one (you should!): $ ssh-keygen -b 4096 copy the public key: $ cat ~/.ssh

URL analysis for theo-andreou.org

https://www.theo-andreou.org/?p=1568#comments
https://www.theo-andreou.org/?lang=en/?p=1539
https://www.theo-andreou.org/?paged=3&lang=en
https://www.theo-andreou.org/?m=201504&lang=en
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https://www.theo-andreou.org/?p=1778#comment-15033
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https://www.theo-andreou.org/?m=201604&lang=en
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