Hi All,
Purpose: Devuan guest install for web server on Devuan KVM Box. Used this ISO: https://files.devuan.org/devuan_jessie_beta/devuan_jessie_1.0.0-beta_amd64_CD.iso Mounted it at /cdrom (just a directory mount, simple enough). Created LV for guest. Adjusting the ISO to allow text install wasn't necessary. The script (attached) that I crafted, feel free to adjust as required for your own needs (obviously). But here is the resultant virt-instsall command: virt-install \ --virt-type kvm \ --os-variant=debianwheezy \ --name=www-affinityvision-com-au --cpu=host --vcpus=2 --memory 2048 --disk path=/srv/kvm/images/www-affinityvision-com-au--disk0 \ --cdrom /path/to/Devuan-ISO-FILE \ --graphics none --network bridge=br0 \ --boot kernel=/cdrom/install.amd/vmlinuz,initrd=/cdrom/install.amd/initrd.gz,kernel_args='console=ttyS0' All the research I had done trying to find the "right" way to do the install had issues that I needed to resolve. Using "console" and/or "--extra-args", would not work unless you used "--location" and then it had to be an install tree, not an ISO file. Otherwise a graphical install with vnc -- and I wanted a simpler text install only. I probably could have just copied the vmlinux and initrd files from the ISO (once it was mounted at /cdrom) and then umounted it. Once the install was done, I dumped the xml, edited it, undefined the guest and then re-created it from the adjusted xml. The changes required (to the xml exported file) were to stop it booting the installer and to boot from the disk image instead. Kind Regards AndrewM
#!/usr/bin/env bash
# Script used to install VMs.
# You have to lvcreate the disk(s) first!
# lvcreate -L sizeG -n $name vg0
dummy() {
####
# uname -a
Linux kvm-affinity-devuan-a 3.16.0-4-amd64 #1 SMP Debian 3.16.36-1+deb8u1
(2016-09-03) x86_64 GNU/Linux
# vgs
VG #PV #LV #SN Attr VSize VFree
vg0 1 2 0 wz--n- 232.48g 213.85g
# lvcreate -L 12G -n www-affinityvision-com-au--disk0 vg0
Logical volume "www-affinityvision-com-au--disk0" created
# ls -lart /dev/mapper/vg0-www--affinityvision--com--au----disk0
lrwxrwxrwx 1 root root 7 Sep 30 00:01
/dev/mapper/vg0-www--affinityvision--com--au----disk0 -> ../dm-3
# lvdisplay /dev/mapper/vg0-www--affinityvision--com--au----disk0
--- Logical volume ---
LV Path /dev/vg0/www-affinityvision-com-au--disk0
LV Name www-affinityvision-com-au--disk0
VG Name vg0
LV UUID ffN5RP-YNZI-iSkz-PXb1-8o8A-CHh3-LlPIbq
LV Write Access read/write
LV Creation host, time kvm-affinity-devuan-a, 2016-09-30 00:01:22 +1000
LV Status available
# open 0
LV Size 12.00 GiB
Current LE 3072
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 253:3
# ls -lart /srv/kvm/images/www-affinityvision-com-au--disk0
lrwxrwxrwx 1 root root 53 Sep 29 16:56
/srv/kvm/images/www-affinityvision-com-au--disk0 ->
/dev/mapper/vg0-www--affinityvision--com--au----disk0
# mkdir /cdrom && mount -o ro
/srv/ISO-files/devuan/devuan_jessie_1.0.0-beta_amd64_DVD.iso /cdrom
# df -PTah /cdrom
Filesystem Type Size Used Avail Use% Mounted on
/dev/loop0 iso9660 4.4G 4.4G 0 100% /cdrom
####
}
set -e
variant="--os-variant=debianwheezy"
name="--name=www-affinityvision-com-au"
cpus="--cpu=host --vcpus=2"
memory="--memory 2048"
disk="--disk path=/srv/kvm/images/www-affinityvision-com-au--disk0"
location="--cdrom /srv/ISO-files/devuan/devuan_jessie_1.0.0-beta_amd64_DVD.iso"
graphics="--graphics none"
network="--network bridge=br0"
boot="--boot
kernel=/cdrom/install.amd/vmlinuz,initrd=/cdrom/install.amd/initrd.gz,kernel_args='console=ttyS0'"
CMD="virt-install --virt-type kvm ${variant} ${name} ${cpus} ${memory}
${disk} ${location} ${graphics} ${network} ${boot}"
echo "${CMD}"
eval ${CMD}
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