Ubuntu Server Guide

Interactive live server installation on IBM z/VM (s390x)

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Interactive live server installation on IBM z/VM (s390x)
Doing a manual live installation like described here - means without specifying a parmfile - is supported since
Ubuntu Server LTS 20.04.1 (‘focal’) and any newer release, like 20.10 (‘groovy’).
• The following guide assumes that a z/VM guest got defined, and that it is able to either reach the public
cdimage.ubuntu.com server or an internal FTP or HTTP server that hosts an Ubuntu Server 20.04 in-
staller image, like this 20.04 aka focal daily live image here: http://cdimage.ubuntu.com/ubuntu/releases/20.04.1/release/ubuntu-
20.04.1-live-server-s390x.iso
• Find a place to download the installer image:
u s e r @ w o r k s t a t i o n : ~ $ wget
h t t p : / / cdimage . ubuntu . com/ ubuntu / r e l e a s e s / 2 0 . 0 4 . 1 / r e l e a s e / ubuntu −20.04.1 −
l i v e −s e r v e r −s390x . i s o
−−2020−08−08 16:01:52 − −
h t t p : / / cdimage . ubuntu . com/ ubuntu / r e l e a s e s / 2 0 . 0 4 . 1 / r e l e a s e / ubuntu −20.04.1 −
l i v e −s e r v e r −s390x . i s o
R e s o l v i n g cdimage . ubuntu . com ( cdimage . ubuntu . com ) . . . 2 0 0 1 : 6 7 c : 1 5 6 0 : 8 0 0 1 : : 1
d , 2 0 0 1 : 6 7 c : 1 3 6 0 : 8 0 0 1 : : 2 7 , 2 0 0 1 : 6 7 c : 1 3 6 0 : 8 0 0 1 : : 2 8 , . . .
Connecting t o cdimage . ubuntu . com
( cdimage . ubuntu . com ) | 2 0 0 1 : 6 7 c : 1 5 6 0 : 8 0 0 1 : : 1 d | : 8 0 . . . c o n n e c t e d .
HTTP r e q u e s t s e n t , a w a i t i n g r e s p o n s e . . . 200 OK
Length : 705628160 ( 6 7 3M) [ a p p l i c a t i o n /x−i s o 9 6 6 0 −image ]
Saving t o : ‘ubuntu −20.04.1 − l i v e −s e r v e r −s390x . ’ i s o
ubuntu −20.04.1 − l i v e 100%[===================>] 6 7 2 . 9 4M
3 7 . 1MB/ s
i n
17 s
2020−08−08 1 6 : 0 2 : 1 0 ( 3 8 . 8 MB/ s ) − ‘ubuntu −20.04.1 − l i v e −s e r v e r −s390x . ’ i s o
saved
[ 7 0 5 6 2 8 1 6 0 / 7 0 5 6 2 8 1 6 0 ]
336

u s e r @ w o r k s t a t i o n : ~ $
• Now loop-back mount the ISO to extract four files that are needed for a z/VM guest installation
u s e r @ w o r k s t a t i o n : ~ $ mkdir i s o
u s e r @ w o r k s t a t i o n : ~ $ sudo mount −o l o o p ubuntu −20.04.1 − l i v e −s e r v e r −s390x .
i s o i s o
u s e r @ w o r k s t a t i o n : ~ $
u s e r @ w o r k s t a t i o n : ~ $ l s −1 . / i s o / boot /{ ubuntu . exec , p a r m f i l e . * , k e r n e l . u * ,
i n i t r d . u*}
. / i s o / boot / i n i t r d . ubuntu
. / i s o / boot / k e r n e l . ubuntu
. / i s o / boot / p a r m f i l e . ubuntu
. / i s o / boot / ubuntu . e x e c
u s e r @ w o r k s t a t i o n : ~ $
• Now transfer these four files to your z/VM guest (for example to its ‘A’ file mode), using either the
3270 terminal emulator or ftp.
• Then log on to your z/VM guest that you want to use for the installation, in this example it will be
guest ‘10.222.111.24’
• And execute the ubuntu REXX script to kick-off the installation:
ubuntu
0 0 : 0000004 FILES PURGED
0 0 : RDR FILE 0125 SENT FROM 1 0 . 2 2 2 . 1 1 1 . 2 4
PUN WAS 0125 RECS 101K CPY
001
A NOHOLD NO
KEEP
0 0 : RDR FILE 0129 SENT FROM 1 0 . 2 2 2 . 1 1 1 . 2 4
PUN WAS 0129 RECS 0001 CPY
001
A NOHOLD NO
KEEP
0 0 : RDR FILE 0133 SENT FROM 1 0 . 2 2 2 . 1 1 1 . 2 4
PUN WAS 0133 RECS 334K CPY
001
A NOHOLD NO
KEEP
0 0 : 0000003 FILES CHANGED
0 0 : 0000003 FILES CHANGED
0 1 : HCPGSP2627I The v i r t u a l machine i s p l a c e d i n CP mode due t o a SIGP
i n i t i a l CPU r e s e t from CPU 0 0 .
0 2 : HCPGSP2627I The v i r t u a l machine i s p l a c e d i n CP mode due t o a SIGP
i n i t i a l CPU r e s e t from CPU 0 0 .
0 3 : HCPGSP2627I The v i r t u a l machine i s p l a c e d i n CP mode due t o a SIGP
i n i t i a l CPU r e s e t from CPU 0 0 .
¬
0 . 3 9 0 9 3 5 | I n i t r a m f s unpacking f a i l e d : Decoding f a i l e d
Unable t o f i n d a medium c o n t a i n e r a l i v e f i l e system
• In the usual case that no parmfile got configured, the installation system now offers to interactively
configure the basic network:
Attempt i n t e r a c t i v e n e t b o o t from a URL?
y e s no ( d e f a u l t y e s ) : y e s
A v a i l a b l e qeth d e v i c e s :
0 . 0 . 0 6 0 0 0 . 0 . 0 6 0 3
zdev t o a c t i v a t e (comma s e p a r a t e d , o p t i o n a l ) : 0600
QETH d e v i c e 0 . 0 . 0 6 0 0 : 0 . 0 . 0 6 0 1 : 0 . 0 . 0 6 0 2 c o n f i g u r e d
337

Two methods a v a i l a b l e f o r IP c o n f i g u r a t i o n :
* s t a t i c : f o r s t a t i c IP c o n f i g u r a t i o n
* dhcp : f o r a u t o m a t i c IP c o n f i g u r a t i o n
s t a t i c dhcp ( d e f a u l t ’ dhcp ’ ) : s t a t i c
i p : 1 0 . 2 2 2 . 1 1 1 . 2 4
gateway ( d e f a u l t 1 0 . 2 2 2 . 1 1 1 . 1 ) : .
dns ( d e f a u l t . ) :
v l a n i d ( o p t i o n a l ) :
h t t p : / / cdimage . ubuntu . com/ ubuntu / r e l e a s e s / 2 0 . 0 4 . 1 / r e l e a s e / ubuntu −20.04.1 −
l i v e −s e r v e r −s390x . i s o ( d e f a u l t )
u r l : f t p : / / 1 0 . 1 1 . 1 2 . 2 : 2 1 / ubuntu−l i v e −s e r v e r − 2 0 . 0 4 . 1 / ubuntu −20.04.1 − l i v e −
s e r v e r −s390x . i s o
http_proxy ( o p t i o n a l ) :
• Make sure that the same version of the ISO image is referenced at the ‘url:’ setting, that was used to ex-
tract the installer files - kernel and initrd. But it can be at a different location, for example directly refer-
encing the public cdimage.ubuntu.com server: http://cdimage.ubuntu.com/ubuntu/releases/20.04.1/release/ubuntu-
20.04.1-live-server-s390x.iso
• The boot-up of the live-server installation now completes:
C o n f i g u r i n g n e t w o r k i n g . . .
QETH d e v i c e 0 . 0 . 0 6 0 0 : 0 . 0 . 0 6 0 1 : 0 . 0 . 0 6 0 2 a l r e a d y c o n f i g u r e d
IP−C o n f i g : enc600 hardware a d d r e s s 0 2 : 2 8 : 0 a : 0 0 : 0 0 : 3 9 mtu 1500
IP−C o n f i g : enc600 g u e s s e d b r o a d c a s t a d d r e s s 1 0 . 2 2 2 . 1 1 1 2 5 5
IP−C o n f i g : enc600 c o m p l e t e :
a d d r e s s : 1 0 . 2 2 2 . 1 1 1 . 2 4
b r o a d c a s t : 1 0 . 2 2 2 . 1 1 1 2 5 5
netmask : 2 5 5 . 2 5 5 . 2 5 5 . 0
gateway : 1 0 . 2 2 2 . 1 1 1 . 1
dns0
: 1 0 . 2 2 2 . 1 1 1 . 1
dns1
: 0 . 0 . 0 . 0
r o o t s e r v e r : 0 . 0 . 0 . 0 r o o t p a t h :
f i l e n a m e
:
Connecting t o 1 0 . 1 1 . 1 2 . 2 : 2 1 ( 1 0 . 1 1 . 1 2 . 2 : 2 1 )
f o c a l −l i v e −s e r v e r −s
5% ! *
! 3 5 . 9M
0 : 0 0 : 1 7 ETA
f o c a l −l i v e −s e r v e r −s
19% ! * * * * * *
!
129M
0 : 0 0 : 0 8 ETA
f o c a l −l i v e −s e r v e r −s
33% ! * * * * * * * * * *
!
225M
0 : 0 0 : 0 5 ETA
f o c a l −l i v e −s e r v e r −s
49% ! * * * * * * * * * * * * * * *
!
330M
0 : 0 0 : 0 4 ETA
f o c a l −l i v e −s e r v e r −s
60% ! * * * * * * * * * * * * * * * * * * *
!
403M
0 : 0 0 : 0 3 ETA
f o c a l −l i v e −s e r v e r −s
76% ! * * * * * * * * * * * * * * * * * * * * * * * *
!
506M
0 : 0 0 : 0 1 ETA
f o c a l −l i v e −s e r v e r −s
89% ! * * * * * * * * * * * * * * * * * * * * * * * * * * * *
!
594M
0 : 0 0 : 0 0 ETA
f o c a l −l i v e −s e r v e r −s 100% ! * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * !
663M
0 : 0 0 : 0 0 ETA
passwd : password e x p i r y i n f o r m a t i o n changed .
QETH d e v i c e 0 . 0 . 0 6 0 0 : 0 . 0 . 0 6 0 1 : 0 . 0 . 0 6 0 2 a l r e a d y c o n f i g u r e d
no s e a r c h o r n a m e s e r v e r s found i n / run / net−enc600 . c o n f / run / net −*. c o n f / run /
n e t 6
−*. c o n f
¬
5 9 4 . 7 6 6 3 7 2 | / dev / l o o p 3 : Can ’ t open b l o c k d e v
¬
5 9 5 . 6 1 0 4 3 4 | systemd¬1 | : multi −u s e r . t a r g e t : Job g e t t y . t a r g e t / s t a r t d e l e t e d
t o
break o r d e r i n g c y c l e s t a r t i n g with multi −u s e r . t a r g e t / s t a r t
¬ ¬0 ; 1 ; 3 1m SKIP
¬0m| O rd er i n g c y c l e found , s k i p p i n g
¬0 ; 1 ; 3 9 mLogin Prompts
¬0m
¬
5 9 5 . 6 2 3 0 2 7 | systemd¬1 | : F a i l e d unmounting /cdrom .
¬ ¬0 ; 1 ; 3 1mFAILED ¬0m| F a i l e d unmounting
¬0 ; 1 ; 3 9m/cdrom ¬0m.
338

¬
5 9 8 . 9 7 3 5 3 8 | cloud −i n i t ¬ 1 2 5 6 | : Cloud−i n i t v . 20.2−45− g 5 f 7 8 2 5 e 2 −0ubuntu1
ru n n i n
g ’ i n i t −l o c a l ’ a t Thu , 04 Jun 2020 1 2 : 0 6 : 4 6 +0000. Up 5 9 8 . 7 2 s e c o n d s .
¬
5 9 9 . 8 2 9 0 6 9 | cloud −i n i t ¬ 1 2 8 8 | : Cloud−i n i t v . 20.2−45− g 5 f 7 8 2 5 e 2 −0ubuntu1
ru n n i n
g ’ i n i t ’ a t Thu , 04 Jun 2020 1 2 : 0 6 : 4 7 +0000. Up 5 9 9 . 6 4 s e c o n d s .
¬
5 9 9 . 8 2 9 1 8 2 | cloud −i n i t ¬ 1 2 8 8 | : c i −i n f o : ++++++++++++++++++++++++++++++++++++
Ne
t d e v i c e i n f o+++++++++++++++++++++++++++++++++++++
¬
5 9 9 . 8 2 9 2 1 8 | cloud −i n i t ¬ 1 2 8 8 | : c i −i n f o :
+−−−−−−−−+−−−−−−+−−−−−−−−−−−−−−−−−−−−−
−−−−+−−−−−−−−−−−−−−−+−−−−−−−−+−−−−−−−−−−−−−−−−−−−+
¬
5 9 9 . 8 2 9 2 5 5 | cloud −i n i t ¬ 1 2 8 8 | : c i −i n f o : ! D evi c e !
Up
!
Address
!
Mask
! Scope
!
Hw−Address
!
¬
5 9 9 . 8 2 9 2 9 2 | cloud −i n i t ¬ 1 2 8 8 | : c i −i n f o :
+−−−−−−−−+−−−−−−+−−−−−−−−−−−−−−−−−−−−−
−−−−+−−−−−−−−−−−−−−−+−−−−−−−−+−−−−−−−−−−−−−−−−−−−+
¬
5 9 9 . 8 2 9 3 3 3 | cloud −i n i t ¬ 1 2 8 8 | : c i −i n f o : ! enc600 ! True !
1 0 . 2 2 2 . 1 1 1 . 2 4
! 2 5 5 . 2 5 5 . 2 5 5 . 0 ! g l o b a l ! 0 2 : 2 8 : 0 a : 0 0 : 0 0 : 3 9 !
¬
5 9 9 . 8 2 9 3 7 6 | cloud −i n i t ¬ 1 2 8 8 | : c i −i n f o : ! enc600 ! True ! f e 8 0 : : 2 8 : a f f : f e 0 0
: 3
/64 !
.
!
l i n k
! 0 2 : 2 8 : 0 a : 0 0 : 0 0 : 3 9 !
¬
5 9 9 . 8 2 9 4 1 6 | cloud −i n i t ¬ 1 2 8 8 | : c i −i n f o : !
l o
! True !
1 2 7 . 0 . 0 . 1
!
2 5 5 . 0 . 0 . 0
!
h o s t
!
.
!
¬
5 9 9 . 8 2 9 6 0 6 | cloud −i n i t ¬ 1 2 8 8 | : c i −i n f o : !
l o
! True !
: : 1 / 1 2 8
!
.
!
h o s t
!
.
!
¬
5 9 9 . 8 2 9 6 8 4 | cloud −i n i t ¬ 1 2 8 8 | : c i −i n f o :
+−−−−−−−−+−−−−−−+−−−−−−−−−−−−−−−−−−−−−
−−−−+−−−−−−−−−−−−−−−+−−−−−−−−+−−−−−−−−−−−−−−−−−−−+
¬
5 9 9 . 8 2 9 7 2 1 | cloud −i n i t ¬ 1 2 8 8 | : c i −i n f o : ++++++++++++++++++++++++++++++Route
IP
v4 i n f o++++++++++++++++++++++++++++++
¬
5 9 9 . 8 2 9 7 5 4 | cloud −i n i t ¬ 1 2 8 8 | : c i −i n f o :
+−−−−−−−+−−−−−−−−−−−−−−+−−−−−−−−−−−−−−
+−−−−−−−−−−−−−−−+−−−−−−−−−−−+−−−−−−−+
¬
5 9 9 . 8 2 9 7 8 9 | cloud −i n i t ¬ 1 2 8 8 | : c i −i n f o : ! Route ! D e s t i n a t i o n
!
Gateway
!
Genmask
! I n t e r f a c e ! F l a g s !
¬
5 9 9 . 8 2 9 8 2 2 | cloud −i n i t ¬ 1 2 8 8 | : c i −i n f o :
+−−−−−−−+−−−−−−−−−−−−−−+−−−−−−−−−−−−−−
+−−−−−−−−−−−−−−−+−−−−−−−−−−−+−−−−−−−+
¬
5 9 9 . 8 2 9 8 5 8 | cloud −i n i t ¬ 1 2 8 8 | : c i −i n f o : !
0
!
0 . 0 . 0 . 0
!
1 0 . 2 2 2 . 1 1 1 . 1
!
0 . 0 . 0 . 0
!
enc600
!
UG
!
¬
5 9 9 . 8 2 9 8 9 6 | cloud −i n i t ¬ 1 2 8 8 | : c i −i n f o : !
1
! 1 0 . 2 2 2 . 1 1 1 0 !
0 . 0 . 0 . 0
! 2 5 5 . 2 5 5 . 2 5 5 . 0 !
enc600
!
U
!
¬
5 9 9 . 8 2 9 9 3 0 | cloud −i n i t ¬ 1 2 8 8 | : c i −i n f o :
+−−−−−−−+−−−−−−−−−−−−−−+−−−−−−−−−−−−−−
+−−−−−−−−−−−−−−−+−−−−−−−−−−−+−−−−−−−+
¬
5 9 9 . 8 2 9 9 6 2 | cloud −i n i t ¬ 1 2 8 8 | : c i −i n f o : +++++++++++++++++++Route IPv6 i n f o
++++
+++++++++++++++
¬
5 9 9 . 8 2 9 9 9 8 | cloud −i n i t ¬ 1 2 8 8 | : c i −i n f o :
+−−−−−−−+−−−−−−−−−−−−−+−−−−−−−−−+−−−−−
−−−−−−+−−−−−−−+
339

¬
5 9 9 . 8 3 0 0 3 1 | cloud −i n i t ¬ 1 2 8 8 | : c i −i n f o : ! Route ! D e s t i n a t i o n ! Gateway !
I n t e
r f a c e ! F l a g s !
¬
5 9 9 . 8 3 0 0 6 4 | cloud −i n i t ¬ 1 2 8 8 | : c i −i n f o :
+−−−−−−−+−−−−−−−−−−−−−+−−−−−−−−−+−−−−−
−−−−−−+−−−−−−−+
¬
5 9 9 . 8 3 0 0 9 6 | cloud −i n i t ¬ 1 2 8 8 | : c i −i n f o : !
1
!
f e 8 0 : : / 6 4
!
: :
!
en
c600
!
U
!
¬
5 9 9 . 8 3 0 1 3 1 | cloud −i n i t ¬ 1 2 8 8 | : c i −i n f o : !
3
!
l o c a l
!
: :
!
en
c600
!
U
!
¬
5 9 9 . 8 3 0 1 6 4 | cloud −i n i t ¬ 1 2 8 8 | : c i −i n f o : !
4
!
f f 0 0 : : / 8
!
: :
!
en
c600
!
U
!
¬
5 9 9 . 8 3 0 2 1 2 | cloud −i n i t ¬ 1 2 8 8 | : c i −i n f o :
+−−−−−−−+−−−−−−−−−−−−−+−−−−−−−−−+−−−−−
−−−−−−+−−−−−−−+
¬
6 0 1 . 0 7 7 9 5 3 | cloud −i n i t ¬ 1 2 8 8 | : G e n e r a t i n g p u b l i c / p r i v a t e r s a key p a i r .
¬
6 0 1 . 0 7 8 1 0 1 | cloud −i n i t ¬ 1 2 8 8 | : Your i d e n t i f i c a t i o n has been saved i n / e t c /
s s h /
ssh_host_rsa_key
¬
6 0 1 . 0 7 8 1 3 6 | cloud −i n i t ¬ 1 2 8 8 | : Your p u b l i c key has been saved i n / e t c / s s h /
s s h
host_rsa_key . pub
¬
6 0 1 . 0 7 8 1 7 0 | cloud −i n i t ¬ 1 2 8 8 | : The key f i n g e r p r i n t i s :
¬
6 0 1 . 0 7 8 2 0 3 | cloud −i n i t ¬ 1 2 8 8 | : SHA256 :
kHtkABZwk8AE80fy0KPzTRcYpht4iXdZmJ37Cgi3
f J 0 root§ubuntu−s e r v e r
¬
6 0 1 . 0 7 8 2 3 6 | cloud −i n i t ¬ 1 2 8 8 | : The key ’ s randomart image i s :
¬
6 0 1 . 0 7 8 2 7 4 | cloud −i n i t ¬ 1 2 8 8 | : +−−−¬RSA 3072|−−−−+
¬
6 0 1 . 0 7 8 3 0 7 | cloud −i n i t ¬ 1 2 8 8 | : ! o+*+B++*..
!
¬
6 0 1 . 0 7 8 3 4 0 | cloud −i n i t ¬ 1 2 8 8 | : ! o .X+=+=+
!
¬
6 0 1 . 0 7 8 3 7 3 | cloud −i n i t ¬ 1 2 8 8 | : !
+.O.= oo
!
¬
6 0 1 . 0 7 8 4 0 6 | cloud −i n i t ¬ 1 2 8 8 | : !
++.+.=o
!
¬
6 0 1 . 0 7 8 4 3 9 | cloud −i n i t ¬ 1 2 8 8 | : !
* . = . oSo
!
¬
6 0 1 . 0 7 8 4 7 1 | cloud −i n i t ¬ 1 2 8 8 | : !
= +.E .
!
¬
6 0 1 . 0 7 8 5 0 3 | cloud −i n i t ¬ 1 2 8 8 | : !
. . .
!
¬
6 0 1 . 0 7 8 5 3 7 | cloud −i n i t ¬ 1 2 8 8 | : !
.
!
¬
6 0 1 . 0 7 8 5 7 0 | cloud −i n i t ¬ 1 2 8 8 | : !
!
¬
6 0 1 . 0 7 8 6 0 2 | cloud −i n i t ¬ 1 2 8 8 | : +−−−−¬SHA256|−−−−−+
¬
6 0 1 . 0 7 8 6 3 5 | cloud −i n i t ¬ 1 2 8 8 | : G e n e r a t i n g p u b l i c / p r i v a t e dsa key p a i r .
¬
6 0 1 . 0 7 8 6 7 1 | cloud −i n i t ¬ 1 2 8 8 | : Your i d e n t i f i c a t i o n has been saved i n / e t c /
s s h /
ssh_host_dsa_key
¬
6 0 1 . 0 7 8 7 0 4 | cloud −i n i t ¬ 1 2 8 8 | : Your p u b l i c key has been saved i n / e t c / s s h /
ssh_
host_dsa_key . pub
¬
6 0 1 . 0 7 8 7 3 6 | cloud −i n i t ¬ 1 2 8 8 | : The key f i n g e r p r i n t i s :
¬
6 0 1 . 0 7 8 7 6 7 | cloud −i n i t ¬ 1 2 8 8 | : SHA256 : ZBNyksVVYZVhKJeL+PWKpsdUcn21yiceX/
DboXQd
Pq0 root§ubuntu−s e r v e r
¬
6 0 1 . 0 7 8 8 0 0 | cloud −i n i t ¬ 1 2 8 8 | : The key ’ s randomart image i s :
¬
6 0 1 . 0 7 8 8 3 5 | cloud −i n i t ¬ 1 2 8 8 | : +−−−¬DSA 1024|−−−−+
340

¬
6 0 1 . 0 8 0 2 4 4 | cloud −i n i t ¬ 1 2 8 8 | : !
. . o*%/E !
¬
6 0 1 . 0 8 0 2 8 9 | cloud −i n i t ¬ 1 2 8 8 | : +−−−−¬SHA256|−−−−−+
¬
6 1 2 . 2 9 3 7 3 1 | cloud −i n i t ¬ 2 0 2 7 | : Cloud−i n i t v . 20.2−45− g 5 f 7 8 2 5 e 2 −0ubuntu1
ru n n i n
g ’ modules : c o n f i g ’ a t Thu , 04 Jun 2020 1 2 : 0 6 : 5 9 +0000. Up 6 1 2 . 1 1 s e c o n d s .
¬
6 1 2 . 2 9 3 8 6 6 | cloud −i n i t ¬ 2 0 2 7 | : S e t t h e f o l l o w i n g ’ random ’ passwords
¬
6 1 2 . 2 9 3 9 4 0 | cloud −i n i t ¬ 2 0 2 7 | :
i n s t a l l e r : wgYsAPzYQbFYqU2X2hYm
c i −i n f o : no a u t h o r i z e d SSH k e y s f i n g e r p r i n t s found f o r u s e r i n s t a l l e r .
<14>Jun
4 1 2 : 0 7 : 0 0 e c 2 :
<14>Jun
4 1 2 : 0 7 : 0 0 e c 2 :
#######################################################
######
<14>Jun
4 1 2 : 0 7 : 0 0 e c 2 : −−−−−BEGIN SSH HOST KEY FINGERPRINTS−−−−−
<14>Jun
4 1 2 : 0 7 : 0 0 e c 2 : 1024 SHA256 : ZBNyksVVYZVhKJeL+PWKpsdUcn21yiceX/
DboXQdPq0
root§ubuntu−s e r v e r (DSA)
<14>Jun
4 1 2 : 0 7 : 0 0 e c 2 : 256 SHA256 :
Bitar9fVHUH2FnYVSJJnldprdAcM5Est0dmRWFTUi8k
root§ubuntu−s e r v e r (ECDSA)
<14>Jun
4 1 2 : 0 7 : 0 0 e c 2 : 256 SHA256 : yWsZ/5+7u7D3SIcd7HYnyajXyeWnt5nQ+
ZI3So3beN8
root§ubuntu−s e r v e r ( ED25519 )
<14>Jun
4 1 2 : 0 7 : 0 0 e c 2 : 3072 SHA256 :
kHtkABZwk8AE80fy0KPzTRcYpht4iXdZmJ37Cgi3fJ0
root§ubuntu−s e r v e r (RSA)
<14>Jun
4 1 2 : 0 7 : 0 0 e c 2 : −−−−−END SSH HOST KEY FINGERPRINTS−−−−−
<14>Jun
4 1 2 : 0 7 : 0 0 e c 2 :
#######################################################
######
−−−−−BEGIN SSH HOST KEY KEYS−−−−−
ecdsa −sha2−n i s t p 2 5 6
AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBIXM6t1/
35 o t / aPI59ThIJBzg+qGJJ17+1ZVHfzMEDbsTwpM7e9pstPZUM7W1IHWqDvLQDBm/
hGg4u8ZGEqmIMI=
root§ubuntu−s e r v e r
ssh−ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIN7QtU+en+RGruj2zuxWgkMqLmh+35/GR/
OEOD16k4nA
root§ubuntu−s e r v e r
ssh−r s a AAAAB3NzaC1yc2EAAAADAQABAAABgQDJdKT7iUAvSjkUqI1l3fHysE+
Gj7ulwGgGjYh639px
kcHEbbS3V48eROY9BmDISEHfjYXGY2wEH0tGJjNRROGJhZJVNR+qAqJBioj9d /
TwXEgwLP8eAy9aVtJB
K1rIylnMQltx / SIhgiymjHLCtKlVoIS4l0frT9FiF54Qi /
JeJlwGJIW3W2XgcY9ODT0Q5g3PSmlZ8KTR
imTf9Fy7WJEPA08b3fimYWsz9enuS/
gECEUGV3M1MvrzpAQju27NUEOpSMZHR62IMxGvIjYIu3dUkAzm
MBdwxHdLMQ8rI8PehyHDiFr6g2Ifxoy5QLmb3hISKlq/R6pLLeXbb748gN2i8WCvK0AEGfa/
kJDW3RNU
VYd+ACBBzyhVbiw7W1CQW/ ohik3wyosUyi9nJq2IqOA7kkGH+1XoYq/ e4 /MoqxhIK/
oaiudYAkaCWmP1
r /fBa3hlf0f7mVHvxA3tWZc2wYUxFPTmePvpydP2PSctHMhgboaHrGIY2CdSqg8SUdPKrOE=
r o o t § u b
untu−s e r v e r
−−−−−END SSH HOST KEY KEYS−−−−−
342

¬
6 1 2 . 8 7 7 3 5 7 | cloud −i n i t ¬ 2 0 4 5 | : Cloud−i n i t v . 20.2−45− g 5 f 7 8 2 5 e 2 −0ubuntu1
ru n n i n
g ’ modules : f i n a l ’ a t Thu , 04 Jun 2020 1 2 : 0 7 : 0 0 +0000. Up 6 1 2 . 7 9 s e c o n d s .
¬
6 1 2 . 8 7 7 4 2 6 | cloud −i n i t ¬ 2 0 4 5 | : c i −i n f o : no a u t h o r i z e d SSH k e y s f i n g e r p r i n t s
f o
und f o r u s e r i n s t a l l e r .
¬
6 1 2 . 8 7 7 4 6 8 | cloud −i n i t ¬ 2 0 4 5 | : Cloud−i n i t v . 20.2−45− g 5 f 7 8 2 5 e 2 −0ubuntu1
f i n i s h
ed a t Thu , 04 Jun 2020 1 2 : 0 7 : 0 0 +0000. D a t a s o u r c e DataSourceNoCloud ¬seed=/var
/ l
i b / c l o u d / s e e d / n o c l o u d | ¬dsmode=n e t | .
Up 6 1 2 . 8 7 s e c o n d s
¬
6 1 2 . 8 7 7 5 0 9 | cloud −i n i t ¬ 2 0 4 5 | : Welcome t o Ubuntu S e r v e r I n s t a l l e r Ü
¬
6 1 2 . 8 7 7 5 5 1 | cloud −i n i t ¬ 2 0 4 5 | : Above you w i l l f i n d SSH h o s t k e y s and a
random
password s e t f o r t h e ‘ i n s t a l l e r ‘ u s e r . You can u s e t h e s e c r e d e n t i a l s t o ssh−i n
a
nd c o m p l e t e t h e i n s t a l l a t i o n . I f you p r o v i d e d SSH k e y s i n t h e cloud −i n i t
da ta so u
r c e , they were a l s o p r o v i s i o n e d t o t h e i n s t a l l e r u s e r .
¬
6 1 2 . 8 7 7 6 3 4 | cloud −i n i t ¬ 2 0 4 5 | : I f you have a c c e s s t o t h e g r a p h i c a l c o n s o l e ,
l i
ke TTY1 o r HMC ASCII t e r m i n a l you can c o m p l e t e t h e i n s t a l l a t i o n t h e r e t o o .
I t i s p o s s i b l e t o c o n n e c t t o t h e i n s t a l l e r o v e r t h e network , which
might a l l o w t h e u s e o f a more c a p a b l e t e r m i n a l .
To connect , SSH t o i n s t a l l e r § 1 0 . 2 2 2 . 1 1 1 . 2 4 .
The password you s h o u l d u s e i s ”KRuXtz5dURAyPkcjcUvA ” .
The h o s t key f i n g e r p r i n t s a r e :
RSA
SHA256 : 3 IvYMkU05lQSKBxOVZUJMzdtXpz3RJl3dEQsg3UWc54
ECDSA
SHA256 : xd1xnkBpn49DUbuP8uWro2mu1GM4MtnqR2WEWg1fS3o
ED25519 SHA256 : Hk3+/4+X7NJBHl6/ e /6xFhNXsbHBsOvt6i8YEFUepko
Ubuntu F o c a l Fossa ( development branch ) ubuntu−s e r v e r t t y S 0
• The next step is now to remotely connect to the install system and to proceed with the subiquity
installer.
• Please notice that at the end of the installer boot up process all needed data is provided to proceed
with running the installer in a remote ssh shell. The command to execute locally is:
u s e r @ w o r k s t a t i o n : ~ $ s s h i n s t a l l e r @ 1 0 . 2 2 2 . 1 1 1 . 2 4
• And a temporary random password for the installation got created and shared as well, here:
”KRuXtz5dURAyPkcjcUvA”
(Use it without the leading and trailing double quotes.)
u s e r @ w o r k s t a t i o n : ~ $ s s h i n s t a l l e r @ 1 0 . 2 2 2 . 1 1 1 . 2 4
The a u t h e n t i c i t y o f h o s t ’ 1 0 . 2 2 2 . 1 1 1 . 2 4 ( 1 0 . 2 2 2 . 1 1 1 . 2 4 ) ’ can ’ t be
e s t a b l i s h e d .
ECDSA key f i n g e r p r i n t i s
343

SHA256 : xd1xnkBpn49DUbuP8uWro2mu1GM4MtnqR2WEWg1fS3o .
Are you s u r e you want t o c o n t i n u e c o n n e c t i n g ( y e s /no / [ f i n g e r p r i n t ] ) ? y e s
Warning : Permanently added ’ 1 0 . 2 2 2 . 1 1 1 . 2 4 ’ (ECDSA) t o t h e l i s t o f known
h o s t s .
i n s t a l l e r @ 1 0 . 2 2 2 . 1 1 1 . 2 4 ’ s password : KRuXtz5dURAyPkcjcUvA
• One may now temporarily see some login messages like these:
Welcome t o Ubuntu F o c a l Fossa ( development branch ) (GNU/ Linux 5.4.0 −42 −
g e n e r i c s390x )
* Documentation :
h t t p s : / / h e l p . ubuntu . com
* Management :
h t t p s : / / l a n d s c a p e . c a n o n i c a l . com
* Support :
h t t p s : / / ubuntu . com/ advantage
System i n f o r m a t i o n a s o f Wed Jun
3 1 7 : 3 2 : 1 0 UTC 2020
System l o a d :
0 . 0
Memory u s a g e : 2%
P r o c e s s e s :
146
Usage o f /home : unknown
Swap u s a g e :
0%
U s e r s l o g g e d i n : 0
0 up d at es can be i n s t a l l e d i m m e d i a t e l y .
0 o f t h e s e up d a t e s a r e s e c u r i t y u p d a t e s .
The programs i n c l u d e d with t h e Ubuntu system a r e f r e e s o f t w a r e ;
t h e e x a c t d i s t r i b u t i o n terms f o r each program a r e d e s c r i b e d i n t h e
i n d i v i d u a l f i l e s i n / u s r / s h a r e / doc /*/ c o p y r i g h t .
Ubuntu comes with ABSOLUTELY NO WARRANTY, t o t h e e x t e n t p e r m i t t e d by
a p p l i c a b l e law .
• And eventually the initial subiquity installer screen shows up:
====================================================================
Willkommen ! Bienvenue ! Welcome ! ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ! Welkom !
====================================================================
Use UP, DOWN and ENTER k e y s t o s e l e c t your l a n g u a g e .
[ E n g l i s h
> ]
[ A s t u r i a n u
> ]
[ Cataln
> ]
[ H r v a t s k i
> ]
[ N e d e r l a n d s
> ]
[ Suomi
> ]
[ F r a n c a i s
> ]
[ Deutsch
> ]
[ Magyar
> ]
[ L a t v i e ?u
> ]
[ Norsk bokm? l
> ]
[ P o l s k i
> ]
[ Espanol
> ]
• From here just proceed with the installation as usual … (I’m leaving some pretty standard screenshots
here just to give an example for a basic installation …)
====================================================================
344

Keyboard c o n f i g u r a t i o n
====================================================================
P l e a s e s e l e c t your keyboard l a y o u t below , o r s e l e c t ” I d e n t i f y keyboard ” t o
d e t e c t your l a y o u t a u t o m a t i c a l l y .
Layout :
[ E n g l i s h (US)
v ]
V a r i a n t :
[ E n g l i s h (US)
v ]
[ I d e n t i f y keyboard ]
[ Done
]
[ Back
]
====================================================================
Zdev s e t u p
====================================================================
ID
ONLINE
NAMES
^
�
g e n e r i c −ccw �
0 . 0 . 0 0 0 9
> �
0 . 0 . 0 0 0 c
> �
0 . 0 . 0 0 0 d
> �
0 . 0 . 0 0 0 e
> ��
dasd−eckd �
0 . 0 . 0 1 9 0
> �
0 . 0 . 0 1 9 1
> �
0 . 0 . 0 1 9 d
> �
0 . 0 . 0 1 9 e
>
0 . 0 . 0 2 0 0
>
0 . 0 . 0 3 0 0
>
0 . 0 . 0 4 0 0
>
0 . 0 . 0 5 9 2
>
v
[ Continue
]
[ Back
]
• If the list is long, hit the ‘End’ key that will automatically scroll you down to the bottom of the Z
devices list and screen.
====================================================================
Zdev s e t u p
====================================================================
345

ID
ONLINE
NAMES
^
�
g e n e r i c −ccw �
0 . 0 . 0 0 0 9
> �
0 . 0 . 0 0 0 c
> �
0 . 0 . 0 0 0 d
> �
0 . 0 . 0 0 0 e
> ��
dasd−eckd �
0 . 0 . 0 1 9 0
> �
0 . 0 . 0 1 9 1
> �
0 . 0 . 0 1 9 d
> �
0 . 0 . 0 1 9 e ��
>
0 . 0 . 0 2 0 0 �
>< ( c l o s e ) �
0 . 0 . 0 3 0 0 �
>
Enable �
0 . 0 . 0 4 0 0 �
>
D i s a b l e �
0 . 0 . 0 5 9 2 ��
>
v
[ Continue
]
[ Back
]
====================================================================
Zdev s e t u p
====================================================================
ID
ONLINE
NAMES
^
�
g e n e r i c −ccw �
0 . 0 . 0 0 0 9
> �
0 . 0 . 0 0 0 c
> �
0 . 0 . 0 0 0 d
> �
0 . 0 . 0 0 0 e
> ��
dasd−eckd �
0 . 0 . 0 1 9 0
> �
0 . 0 . 0 1 9 1
> �
0 . 0 . 0 1 9 d
> �
0 . 0 . 0 1 9 e
>
0 . 0 . 0 2 0 0
o n l i n e
dasda
>
0 . 0 . 0 3 0 0
>
0 . 0 . 0 4 0 0
>
0 . 0 . 0 5 9 2
>
v
[ Continue
]
[ Back
]
====================================================================
Zdev s e t u p
====================================================================
^
dasd−eckd
0 . 0 . 0 1 9 0
>
0 . 0 . 0 1 9 1
>
346

0 . 0 . 0 1 9 d
>
0 . 0 . 0 1 9 e
> �
0 . 0 . 0 2 0 0
o n l i n e
dasda
> �
0 . 0 . 0 3 0 0
> �
0 . 0 . 0 4 0 0
> �
0 . 0 . 0 5 9 2
> ��
qeth �
0 . 0 . 0 6 0 0 : 0 . 0 . 0 6 0 1 : 0 . 0 . 0 6 0 2
enc600
> �
0 . 0 . 0 6 0 3 : 0 . 0 . 0 6 0 4 : 0 . 0 . 0 6 0 5
> ��
dasd−eckd �
0 . 0 . 1 6 0 7
>
v
[ Continue
]
[ Back
]
====================================================================
Network c o n n e c t i o n s
====================================================================
C o n f i g u r e a t l e a s t one i n t e r f a c e t h i s s e r v e r can u s e t o t a l k t o o t h e r
machines , and which p r e f e r a b l y p r o v i d e s s u f f i c i e n t a c c e s s f o r u p d a t e s .
NAME
TYPE
NOTES
[ enc600
e t h
−
> ]
s t a t i c
1 0 . 2 2 2 . 1 1 1 . 2 4 / 2 4
0 2 : 2 8 : 0 a : 0 0 : 0 0 : 3 9 / Unknown Vendor / Unknown Model
[ C r e a t e bond > ]
[ Done
]
[ Back
]
====================================================================
C o n f i g u r e proxy
====================================================================
I f t h i s system r e q u i r e s a proxy t o c o n n e c t t o t h e i n t e r n e t , e n t e r i t s
d e t a i l s h e r e .
Proxy a d d r e s s :
I f you need t o u s e a HTTP proxy t o a c c e s s t h e o u t s i d e world ,
e n t e r t h e proxy i n f o r m a t i o n h e r e . Otherwise , l e a v e t h i s
blank .
The proxy i n f o r m a t i o n s h o u l d be g i v e n i n t h e s t a n d a r d form
o f ” h t t p : / / [ [ u s e r ] [ : p a s s ]@] h o s t [ : p o r t ] / ” .
347

[ Done
]
[ Back
]
====================================================================
C o n f i g u r e Ubuntu a r c h i v e m i r r o r
====================================================================
I f you u s e an a l t e r n a t i v e m i r r o r f o r Ubuntu , e n t e r i t s d e t a i l s h e r e .
M i r r o r a d d r e s s :
h t t p : / / p o r t s . ubuntu . com/ ubuntu−p o r t s
You may p r o v i d e an a r c h i v e m i r r o r t h a t w i l l be used i n s t e a d
o f t h e d e f a u l t .
[ Done
]
[ Back
]
====================================================================
Guided s t o r a g e c o n f i g u r a t i o n
====================================================================
C o n f i g u r e a g u i d e d s t o r a g e l a y o u t , o r c r e a t e a custom one :
(X)
Use an e n t i r e d i s k
[ 0X0200
l o c a l d i s k 6 . 8 7 6G
v ]
[ ]
S e t up t h i s d i s k a s an LVM group
[ ]
Encrypt t h e LVM group with LUKS
P a s s p h r a s e :
Confirm p a s s p h r a s e :
348

( )
Custom s t o r a g e l a y o u t
[ Done
]
[ Back
]
====================================================================
S t o r a g e c o n f i g u r a t i o n
====================================================================
FILE SYSTEM SUMMARY
^
�
MOUNT POINT
SIZE
TYPE
DEVICE TYPE �
[ /
6 . 8 7 5G
new e x t 4
new p a r t i t i o n o f l o c a l d i s k > ] ��
AVAILABLE DEVICES ��
No a v a i l a b l e d e v i c e s ��
[ C r e a t e s o f t w a r e RAID (md) > ] �
[ C r e a t e volume group (LVM) > ] �
USED DEVICES
v
[ Done
]
[ Reset
]
[ Back
]
====================================================================
S t o r a g e c o n f i g u r a t i o n
====================================================================
FILE SYSTEM SUMMARY
^
��
Confirm d e s t r u c t i v e a c t i o n ��
S e l e c t i n g Continue below w i l l b e g i n t h e i n s t a l l a t i o n p r o c e s s and ��
r e s u l t i n t h e l o s s o f data on t h e d i s k s s e l e c t e d t o be f o r m a t t e d . ��
You w i l l not be a b l e t o r e t u r n t o t h i s o r a p r e v i o u s s c r e e n once t h e ��
i n s t a l l a t i o n has s t a r t e d . ��
Are you s u r e you want t o c o n t i n u e ? ��
[ No
] ��
[ Continue
]
��
[ Reset
]
349

[ Back
]
====================================================================
P r o f i l e s e t u p
====================================================================
Enter t h e username and password you w i l l u s e t o l o g i n t o t h e system . You
can c o n f i g u r e SSH a c c e s s on t h e next s c r e e n but a password i s
s t i l l needed
f o r sudo .
Your name :
Ed Example
Your s e r v e r ’ s name :
1 0 . 2 2 2 . 1 1 1 . 2 4
The name i t u s e s when i t t a l k s t o o t h e r computers .
Pick a username :
ubuntu
Choose a password :
********
Confirm your password :
********
[ Done
]
====================================================================
SSH Setup
====================================================================
You can c h o o s e t o i n s t a l l t h e OpenSSH s e r v e r package t o e n a b l e s e c u r e remote
a c c e s s t o your s e r v e r .
[ ]
I n s t a l l OpenSSH s e r v e r
Import SSH i d e n t i t y :
[ No
v ]
You can import your SSH k e y s from Github o r Launchpad .
Import Username :
[X]
Allow password a u t h e n t i c a t i o n o v e r SSH
[ Done
]
[ Back
]
• It’s an nice and convenient new feature to add the users ssh keys during the installation to the system,
since that makes the system login password-less already on the initial login!
====================================================================
SSH Setup
350

====================================================================
You can c h o o s e t o i n s t a l l t h e OpenSSH s e r v e r package t o e n a b l e s e c u r e remote
a c c e s s t o your s e r v e r .
[X]
I n s t a l l OpenSSH s e r v e r
Import SSH i d e n t i t y :
[ from Launchpad v ]
You can import your SSH k e y s from Github o r Launchpad .
Launchpad Username :
u s e r
Enter your Launchpad username .
[X]
Allow password a u t h e n t i c a t i o n o v e r SSH
[ Done
]
[ Back
]
====================================================================
SSH Setup
====================================================================
You can c h o o s e t o i n s t a l l t h e OpenSSH s e r v e r package t o e n a b l e s e c u r e remote
a c c e s s t o your s e r v e r . ��
Confirm SSH k e y s ��
Keys with t h e f o l l o w i n g f i n g e r p r i n t s were f e t c h e d . Do you want t o ��
u s e them ? ��
2048 SHA256 : joGsdfW7NbJRkg17sRyXaegoR0iZEdDWdR9Hpbc2KIw user@W520 ��
(RSA) ��
521 SHA256 : T3JzxvB6K1GzXJpP5NFgX4yXvk0jhhgvbw01F7/ f Z 2 c ��
f r a n k . h e i m e s @ c a n o n i c a l . com
(ECDSA) ��
[ Yes
] ��
[ No
]
��
[ Done
]
[ Back
]
====================================================================
Featured S e r v e r Snaps
====================================================================
These a r e p o p u l a r sna p s i n s e r v e r e n v i r o n m e n t s . S e l e c t o r d e s e l e c t with
SPACE, p r e s s ENTER t o s e e more d e t a i l s o f t h e package , p u b l i s h e r and
v e r s i o n s a v a i l a b l e .
351

[ ] kata−c o n t a i n e r s L i g h t w e i g h t v i r t u a l machines t h a t s e a m l e s s l y p l u g i n t o >
[ ] d o c k e r
Docker c o n t a i n e r runtime
>
[ ] m o s q u i t t o
E c l i p s e Mosquitto MQTT b r o k e r
>
[ ] e t c d
R e s i l i e n t key−v a l u e s t o r e by CoreOS
>
[ ] s t r e s s −ng
A t o o l t o load , s t r e s s t e s t and benchmark a computer s >
[ ] sabnzbd
SABnzbd
>
[ ] wormhole
g e t t h i n g s from one computer t o another , s a f e l y
>
[ ] s l c l i
Python based S o f t L a y e r API Tool .
>
[ ] d o c t l
D i g i t a l O c e a n command l i n e t o o l
>
[ ] k e e p a l i v e d
High a v a i l a b i l i t y VRRP/BFD and load−b a l a n c i n g f o r Linu >
[ ] j u j u
Simple , s e c u r e and s t a b l e devops . Juju k e e p s c o m p l e x i t >
[ Done
]
[ Back
]
====================================================================
I n s t a l l c o m p l e t e !
====================================================================
��
c o n f i g u r i n g r a i d (mdadm) s e r v i c e �
^�
i n s t a l l i n g k e r n e l ��
s e t t i n g up swap ��
apply n e t w o r k i n g c o n f i g ��
w r i t i n g e t c / f s t a b ��
c o n f i g u r i n g m u l t i p a t h ��
u p d a t i n g p a c k a g e s on t a r g e t system ��
c o n f i g u r i n g p o l l i n a t e u s e r −a g e n t on t a r g e t ��
u p d a t i n g i n i t r a m f s c o n f i g u r a t i o n ��
f i n a l i z i n g i n s t a l l a t i o n ��
r u n n i n g ’ c u r t i n hook ’ ��
c u r t i n command hook ��
e x e c u t i n g l a t e commands ��
f i n a l system c o n f i g u r a t i o n ��
c o n f i g u r i n g cloud −i n i t ��
i n s t a l l i n g openssh−s e r v e r | �
v
��
[ View f u l l l o g ]
====================================================================
I n s t a l l a t i o n c o m p l e t e !
====================================================================
��
F i n i s h e d i n s t a l l ! ��
apply n e t w o r k i n g c o n f i g �
^�
w r i t i n g e t c / f s t a b ��
c o n f i g u r i n g m u l t i p a t h ��
up d a t i n g p a c k a g e s on t a r g e t system ��
c o n f i g u r i n g p o l l i n a t e u s e r −a g e n t on t a r g e t ��
up d a t i n g i n i t r a m f s c o n f i g u r a t i o n ��
352

f i n a l i z i n g i n s t a l l a t i o n ��
r u nn i n g ’ c u r t i n hook ’ ��
c u r t i n command hook ��
e x e c u t i n g l a t e commands ��
f i n a l system c o n f i g u r a t i o n ��
c o n f i g u r i n g cloud −i n i t ��
i n s t a l l i n g openssh−s e r v e r ��
r e s t o r i n g apt c o n f i g u r a t i o n ��
downloading and i n s t a l l i n g s e c u r i t y up da t es �
v
��
[ View f u l l l o g ]
[ Reboot
]
I n s t a l l a t i o n c o m p l e t e !
====================================================================
��
F i n i s h e d i n s t a l l ! ��
apply n e t w o r k i n g c o n f i g �
^�
w r i t i n g e t c / f s t a b ��
c o n f i g u r i n g m u l t i p a t h ��
up d a t i n g p a c k a g e s on t a r g e t system ��
c o n f i g u r i n g p o l l i n a t e u s e r −a g e n t on t a r g e t ��
u p d a t i n g i n i t r a m f s c o n f i g u r a t i o n ��
f i n a l i z i n g i n s t a l l a t i o n ��
r u n n i n g ’ c u r t i n hook ’ ��
c u r t i n command hook ��
e x e c u t i n g l a t e commands ��
f i n a l system c o n f i g u r a t i o n ��
c o n f i g u r i n g cloud −i n i t ��
i n s t a l l i n g openssh−s e r v e r ��
r e s t o r i n g apt c o n f i g u r a t i o n ��
downloading and i n s t a l l i n g s e c u r i t y up da t es �
v
��
[ Connection t o 1 0 . 2 2 2 . 1 1 1 . 2 4 c l o s e d by remote
h o s t .
[
Rebooting . . .
]
Connection t o 1 0 . 2 2 2 . 1 1 1 . 2 4 c l o s e d .
u s e r @ w o r k s t a t i o n : ~ $
• Type a ‘reset’ to clear the screen and to revert it back to the defaults:
u s e r @ w o r k s t a t i o n : ~ $ r e s e t
u s e r @ w o r k s t a t i o n : ~ $
• Now remove the old host key, since the system got a new ones during the installation:
u s e r @ w o r k s t a t i o n : ~ $ ssh−keygen −f ”/home/ u s e r / . s s h / known_hosts ” −R
” 1 0 . 2 2 2 . 1 1 1 . 2 4 ”
# Host 1 0 . 2 2 2 . 1 1 1 . 2 4 found : l i n e 159
/home/ u s e r / . s s h / known_hosts updated .
353

O r i g i n a l c o n t e n t s r e t a i n e d a s /home/ u s e r / . s s h / known_hosts . o l d
u s e r @ w o r k s t a t i o n : ~ $
• And finally login to the newly installed z/VM guest:
u s e r @ w o r k s t a t i o n : ~ $ s s h ubuntu@10 . 2 2 2 . 1 1 1 . 2 4
Warning : Permanently added t h e ECDSA h o s t key f o r IP a d d r e s s
’ 1 0 . 2 2 2 . 1 1 1 . 2 4 ’ t o t h e l i s t o f known h o s t s .
Welcome t o Ubuntu 2 0 . 0 4 . 1 LTS (GNU/ Linux 5.4.0 −42 − g e n e r i c s390x )
* Documentation :
h t t p s : / / h e l p . ubuntu . com
* Management :
h t t p s : / / l a n d s c a p e . c a n o n i c a l . com
* Support :
h t t p s : / / ubuntu . com/ advantage
System i n f o r m a t i o n a s o f Wed 03 Jun 2020 0 5 : 5 0 : 0 5 PM UTC
System l o a d : 0 . 0 8
Memory u s a g e : 2%
P r o c e s s e s :
157
Usage o f / :
18.7% o f 6 . 7 0GB
Swap u s a g e :
0%
U s e r s l o g g e d i n : 0
0 up d at es can be i n s t a l l e d i m m e d i a t e l y .
0 o f t h e s e up d a t e s a r e s e c u r i t y u p d a t e s .
The programs i n c l u d e d with t h e Ubuntu system a r e f r e e s o f t w a r e ;
t h e e x a c t d i s t r i b u t i o n terms f o r each program a r e d e s c r i b e d i n t h e
i n d i v i d u a l f i l e s i n / u s r / s h a r e / doc /*/ c o p y r i g h t .
Ubuntu comes with ABSOLUTELY NO WARRANTY, t o t h e e x t e n t p e r m i t t e d by
a p p l i c a b l e law .
To run a command a s a d m i n i s t r a t o r ( u s e r ” r o o t ” ) , u s e ” sudo ”.
See ”man sudo_root ” f o r d e t a i l s .
ubuntu@10 . 2 2 2 . 1 1 1 . 2 4 : ~ $ uptime
1 7 : 5 0 : 0 9 up 1 min ,
1 u s e r ,
l o a d a v e r a g e : 0 . 0 8 , 0 . 1 1 , 0 . 0 5
ubuntu@10 . 2 2 2 . 1 1 1 . 2 4 : ~ $ l s b _ r e l e a s e −a
No LSB modules a r e a v a i l a b l e .
D i s t r i b u t o r ID :
Ubuntu
D e s c r i p t i o n : Ubuntu 2 0 . 0 4 . 1 LTS
R e l e a s e :
2 0 . 0 4
Codename : f o c a l
ubuntu@10 . 2 2 2 . 1 1 1 . 2 4 : ~ $ uname −a
Linux 1 0 . 2 2 2 . 1 1 1 . 2 4 5.4.0 −42 − g e n e r i c #30−Ubuntu SMP Wed Aug 05 1 6 : 5 7 : 2 2
UTC 2020 s390x s390x s390x GNU/ Linux
ubuntu@10 . 2 2 2 . 1 1 1 . 2 4 : ~ $ e x i t
l o g o u t
Connection t o 1 0 . 2 2 2 . 1 1 1 . 2 4 c l o s e d .
u s e r @ w o r k s t a t i o n : ~ $
Done !

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