KVM Host Guest Filesystem Images

Configuring disks for the KVM Guests Filesystem Images

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configure disks for lvm guests sdc 2T SATA sdd 2T SATA sdc1 1856G (type=fd linux raid autodetect) sdd1 1856G (type=fd linux raid autodetect) md2 raid1(sdc1, sdd1)

mdadm --create --level 1 --raid-devices 2 /dev/md2 /dev/sdc1 /dev/sdd1 cat /proc/mdstat

root@kvm02:~# mdadm --detail /dev/md2 /dev/md2:

• Version : 1.2

• Creation Time : Sat Oct 7 15:57:11 2017
  • Raid Level : raid1 Array Size : 1946025984 (1855.88 GiB 1992.73 GB)
  Used Dev Size : 1946025984 (1855.88 GiB 1992.73 GB)
  • Raid Devices : 2
  Total Devices : 2
  • Persistence : Superblock is persistent
  Intent Bitmap : Internal
  • Update Time : Sat Oct 7 23:13:13 2017
    • State : clean

• Active Devices : 2

Working Devices : 2

• Failed Devices : 0
  • Spare Devices : 0
    • Name : kvm02:2 (local to host kvm02) UUID : a78f7c84:5491a0d6:d5c5390d:8b97863f
    • Events : 5069

    • Number Major Minor RaidDevice State

      • 0 8 33 0 active sync /dev/sdc1 1 8 49 1 active sync /dev/sdd1

add this to /etc/mdadm/mdadm.conf ARRAY /dev/md/2 metadata=1.2 UUID=a78f7c84:5491a0d6:d5c5390d:8b97863f name=kvm02:2

update-initramfs -u

cryptsetup luksFormat /dev/md2 cryptsetup luksOpen /dev/md2 md2_crypt echo -n "uptime" | md5sum | dd of=keyfile_md2 bs=1 count=32 cryptsetup luksAddKey /dev/md2 /root/install/luks/keyfile_md2

add to /etc/crypttab

root@kvm02:~# blkid /dev/mapper/md1_crypt: UUID="3mOaOP-QrrK-M3qA-3oww-NmZB-JRed-pQaFIw" TYPE="LVM2_member" /dev/mapper/vg1-root: UUID="c883776a-9edc-462e-9738-657e371d2a45" UUID_SUB="668d0413-a182-43fe-b4a1-ff06cb98d73e" TYPE="btrfs" /dev/sdb1: UUID="9d9740fb-8fb7-efe1-8c5e-013d781df3d8" UUID_SUB="ab130aed-fb4a-88cb-0cbc-9ae91fa08619" LABEL="kvm02:0" TYPE="linux_raid_member" PARTUUID="483bb906-01" /dev/sdb2: UUID="da51541f-77df-af96-fdc3-b03644fac977" UUID_SUB="30ad7b3a-4eed-5a00-f811-bd20bb98b558" LABEL="kvm02:1" TYPE="linux_raid_member" PARTUUID="483bb906-02" /dev/sdc1: UUID="a78f7c84-5491-a0d6-d5c5-390d8b97863f" UUID_SUB="62048ec1-d5e1-fe29-4346-d194f981f13b" LABEL="kvm02:2" TYPE="linux_raid_member" PARTUUID="6dbfae38-01" /dev/sdd1: UUID="a78f7c84-5491-a0d6-d5c5-390d8b97863f" UUID_SUB="cfc50ce8-77c4-07d8-a95f-35010f5a46d4" LABEL="kvm02:2" TYPE="linux_raid_member" PARTUUID="a4963ac2-01" /dev/sda1: UUID="9d9740fb-8fb7-efe1-8c5e-013d781df3d8" UUID_SUB="7aed9dbb-7ac7-59c7-7810-e91db6102d31" LABEL="kvm02:0" TYPE="linux_raid_member" PARTUUID="c2022b83-01" /dev/sda2: UUID="da51541f-77df-af96-fdc3-b03644fac977" UUID_SUB="15a5b431-6d3b-b2c9-32e2-9b6c2cc594c4" LABEL="kvm02:1" TYPE="linux_raid_member" PARTUUID="c2022b83-02" /dev/md1: UUID="72deeb7f-2289-40c5-99c1-52238afb78ef" TYPE="crypto_LUKS" /dev/md0: UUID="86cc7db9-8700-40de-97c2-e948f3c887cc" UUID_SUB="ed4cadd6-0d74-452a-a52a-c1181d24bc00" TYPE="btrfs" /dev/md2: UUID="d62d227d-6d94-4055-b2df-b9477293b5d6" TYPE="crypto_LUKS" /dev/mapper/vg1-swap: UUID="482ddfde-6e11-4b18-9ef2-b58dbcc36918" TYPE="swap"

md2_crypt UUID=d62d227d-6d94-4055-b2df-b9477293b5d6 /root/install/luks/keyfile_md2 luks

update-initramfs -u

pvcreate /dev/mapper/md2_crypt vgcreate vg2 /dev/mapper/md2_crypt