Public bug reported:

My bad experience with the netboot mini.iso installation (Bionic
2018-04-25)

Hardware config:

oem@cc64:~$ lsblk
NAME   MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
sda      8:0    0 111.8G  0 disk
├─sda1   8:1    0    16G  0 part
├─sda2   8:2    0  10.3G  0 part [SWAP]
├─sda3   8:3    0  71.8G  0 part
└─sda4   8:4    0  13.7G  0 part /
sdb      8:16   0 931.5G  0 disk
├─sdb1   8:17   0    30G  0 part
├─sdb2   8:18   0  29.4G  0 part
├─sdb3   8:19   0  29.5G  0 part
├─sdb4   8:20   0     1K  0 part
├─sdb5   8:21   0  10.1G  0 part
└─sdb6   8:22   0 832.5G  0 part

What happen when i plug an usb stick:

 oem@cc64:~$ lsblk
NAME   MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
sda      8:0    0 111.8G  0 disk
├─sda1   8:1    0    16G  0 part
├─sda2   8:2    0  10.3G  0 part [SWAP]
├─sda3   8:3    0  71.8G  0 part
└─sda4   8:4    0  13.7G  0 part /
sdb      8:16   0 931.5G  0 disk
├─sdb1   8:17   0    30G  0 part
├─sdb2   8:18   0  29.4G  0 part
├─sdb3   8:19   0  29.5G  0 part
├─sdb4   8:20   0     1K  0 part
├─sdb5   8:21   0  10.1G  0 part
└─sdb6   8:22   0 832.5G  0 part
sdc      8:32   1   7.5G  0 disk
└─sdc1   8:33   1   7.5G  0 part /media/oem/MULTISYSTEM

So logically the system add the newest plugged device at the end of the
existing devices list.

***********

Now what happen when choosing a 'manual' partitioning:
- the usb stick where the mini.iso is on becomes the first device listed (aka 
/dev/sda)
- so the permanent devices are reordered and named /dev/sdb & /dev/sdc

==> this does not match with the system logic, nor app like gparted; its
confusing.

***********

That is disturbing and possibly the source of other problem (crappy design). 
Does not remember if that was also displayed like this prior Artful.
But Artful have introduced a swap file use instead of a swap partition; and 
here is where the installation becomes crazy:

- choosing manual partitioning goes well until the final validation: the listed 
operations does not match the choices made:
a) i have repeated several times my choices: / on /dev/sdc1 (sdb1 renamed), 
swap on /dev/sdc5 and /home on /dev/sdc6
b) but the proposed list is: / is ok, swap is not the one chosen but the first 
one found into the list (/dev/sdb2, aka sda2 renamed) and /home is simply 
ignored.

Looks like the choice previously made to now use a swap file (since
Artful) have broken the 'manual' partitioning script. The result is a
borked grub menu, a /etc/fstab needing a manual tweak, and at the end X
cant even start (log pointing to a 'invoke.rc.d gdm3 start' that fails).

That it, fully unusable. Please do a sane design matching the system one
first.

ProblemType: Bug
DistroRelease: Ubuntu 18.10
Package: ubiquity (not installed)
ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17
Uname: Linux 4.15.0-20-generic x86_64
ApportVersion: 2.20.9-0ubuntu7
Architecture: amd64
CurrentDesktop: GNOME
Date: Sat May  5 08:45:16 2018
EcryptfsInUse: Yes
InstallCmdLine: BOOT_IMAGE=(loop)/linux -- quiet
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: ubiquity
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: ubiquity (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug bionic cosmic

** Description changed:

  My bad experience with the netboot mini.iso installation (Bionic
  2018-04-25)
  
  Hardware config:
  
  oem@cc64:~$ lsblk
  NAME   MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
- sda      8:0    0 111.8G  0 disk 
- ├─sda1   8:1    0    16G  0 part 
+ sda      8:0    0 111.8G  0 disk
+ ├─sda1   8:1    0    16G  0 part
  ├─sda2   8:2    0  10.3G  0 part [SWAP]
- ├─sda3   8:3    0  71.8G  0 part 
+ ├─sda3   8:3    0  71.8G  0 part
  └─sda4   8:4    0  13.7G  0 part /
- sdb      8:16   0 931.5G  0 disk 
- ├─sdb1   8:17   0    30G  0 part 
- ├─sdb2   8:18   0  29.4G  0 part 
- ├─sdb3   8:19   0  29.5G  0 part 
- ├─sdb4   8:20   0     1K  0 part 
- ├─sdb5   8:21   0  10.1G  0 part 
- └─sdb6   8:22   0 832.5G  0 part 
+ sdb      8:16   0 931.5G  0 disk
+ ├─sdb1   8:17   0    30G  0 part
+ ├─sdb2   8:18   0  29.4G  0 part
+ ├─sdb3   8:19   0  29.5G  0 part
+ ├─sdb4   8:20   0     1K  0 part
+ ├─sdb5   8:21   0  10.1G  0 part
+ └─sdb6   8:22   0 832.5G  0 part
  
  What happen when i plug an usb stick:
  
-  oem@cc64:~$ lsblk
+  oem@cc64:~$ lsblk
  NAME   MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
- sda      8:0    0 111.8G  0 disk 
- ├─sda1   8:1    0    16G  0 part 
+ sda      8:0    0 111.8G  0 disk
+ ├─sda1   8:1    0    16G  0 part
  ├─sda2   8:2    0  10.3G  0 part [SWAP]
- ├─sda3   8:3    0  71.8G  0 part 
+ ├─sda3   8:3    0  71.8G  0 part
  └─sda4   8:4    0  13.7G  0 part /
- sdb      8:16   0 931.5G  0 disk 
- ├─sdb1   8:17   0    30G  0 part 
- ├─sdb2   8:18   0  29.4G  0 part 
- ├─sdb3   8:19   0  29.5G  0 part 
- ├─sdb4   8:20   0     1K  0 part 
- ├─sdb5   8:21   0  10.1G  0 part 
- └─sdb6   8:22   0 832.5G  0 part 
- sdc      8:32   1   7.5G  0 disk 
+ sdb      8:16   0 931.5G  0 disk
+ ├─sdb1   8:17   0    30G  0 part
+ ├─sdb2   8:18   0  29.4G  0 part
+ ├─sdb3   8:19   0  29.5G  0 part
+ ├─sdb4   8:20   0     1K  0 part
+ ├─sdb5   8:21   0  10.1G  0 part
+ └─sdb6   8:22   0 832.5G  0 part
+ sdc      8:32   1   7.5G  0 disk
  └─sdc1   8:33   1   7.5G  0 part /media/oem/MULTISYSTEM
  
  So logically the system add the newest plugged device at the end of the
- existing devices.
+ existing devices list.
  
  ***********
  
  Now what happen when choosing a 'manual' partitioning:
  - the usb stick where the mini.iso is on becomes the first device listed (aka 
/dev/sda)
  - so the permanent devices are reordered and named /dev/sdb & /dev/sdc
  
  ==> this does not match with the system logic, nor app like gparted; its
  confusing.
  
  ***********
  
  That is disturbing and possibly the source of other problem (crappy design). 
Does not remember if that was also displayed like this prior Artful.
  But Artful have introduced a swap file use instead of a swap partition; and 
here is where the installation becomes crazy:
  
  - choosing manual partitioning goes well until the final validation: the 
listed operations does not match the choices made:
  a) i have repeated several times my choices: / on /dev/sdc1 (sdb1 renamed), 
swap on /dev/sdc5 and /home on /dev/sdc6
  b) but the proposed list is: / is ok, swap is not the one chosen but the 
first one found into the list (/dev/sdb2, aka sda2 renamed) and /home is simply 
ignored.
  
  Looks like the choice previously made to now use a swap file (since
  Artful) have broken the 'manual' partitioning script. The result is a
  borked grub menu, a /etc/fstab needing a manual tweak, and at the end X
  cant even start (log pointing to a 'invoke.rc.d gdm3 start' that fails.
  
  That it, fully unusable. Please do a sane design matching the system one
  first.
  
  ProblemType: Bug
  DistroRelease: Ubuntu 18.10
  Package: ubiquity (not installed)
  ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17
  Uname: Linux 4.15.0-20-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7
  Architecture: amd64
  CurrentDesktop: GNOME
  Date: Sat May  5 08:45:16 2018
  EcryptfsInUse: Yes
  InstallCmdLine: BOOT_IMAGE=(loop)/linux -- quiet
  ProcEnviron:
-  TERM=xterm-256color
-  PATH=(custom, no user)
-  XDG_RUNTIME_DIR=<set>
-  LANG=en_US.UTF-8
-  SHELL=/bin/bash
+  TERM=xterm-256color
+  PATH=(custom, no user)
+  XDG_RUNTIME_DIR=<set>
+  LANG=en_US.UTF-8
+  SHELL=/bin/bash
  SourcePackage: ubiquity
  UpgradeStatus: No upgrade log present (probably fresh install)

** Description changed:

  My bad experience with the netboot mini.iso installation (Bionic
  2018-04-25)
  
  Hardware config:
  
  oem@cc64:~$ lsblk
  NAME   MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
  sda      8:0    0 111.8G  0 disk
  ├─sda1   8:1    0    16G  0 part
  ├─sda2   8:2    0  10.3G  0 part [SWAP]
  ├─sda3   8:3    0  71.8G  0 part
  └─sda4   8:4    0  13.7G  0 part /
  sdb      8:16   0 931.5G  0 disk
  ├─sdb1   8:17   0    30G  0 part
  ├─sdb2   8:18   0  29.4G  0 part
  ├─sdb3   8:19   0  29.5G  0 part
  ├─sdb4   8:20   0     1K  0 part
  ├─sdb5   8:21   0  10.1G  0 part
  └─sdb6   8:22   0 832.5G  0 part
  
  What happen when i plug an usb stick:
  
   oem@cc64:~$ lsblk
  NAME   MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
  sda      8:0    0 111.8G  0 disk
  ├─sda1   8:1    0    16G  0 part
  ├─sda2   8:2    0  10.3G  0 part [SWAP]
  ├─sda3   8:3    0  71.8G  0 part
  └─sda4   8:4    0  13.7G  0 part /
  sdb      8:16   0 931.5G  0 disk
  ├─sdb1   8:17   0    30G  0 part
  ├─sdb2   8:18   0  29.4G  0 part
  ├─sdb3   8:19   0  29.5G  0 part
  ├─sdb4   8:20   0     1K  0 part
  ├─sdb5   8:21   0  10.1G  0 part
  └─sdb6   8:22   0 832.5G  0 part
  sdc      8:32   1   7.5G  0 disk
  └─sdc1   8:33   1   7.5G  0 part /media/oem/MULTISYSTEM
  
  So logically the system add the newest plugged device at the end of the
  existing devices list.
  
  ***********
  
  Now what happen when choosing a 'manual' partitioning:
  - the usb stick where the mini.iso is on becomes the first device listed (aka 
/dev/sda)
  - so the permanent devices are reordered and named /dev/sdb & /dev/sdc
  
  ==> this does not match with the system logic, nor app like gparted; its
  confusing.
  
  ***********
  
  That is disturbing and possibly the source of other problem (crappy design). 
Does not remember if that was also displayed like this prior Artful.
  But Artful have introduced a swap file use instead of a swap partition; and 
here is where the installation becomes crazy:
  
  - choosing manual partitioning goes well until the final validation: the 
listed operations does not match the choices made:
  a) i have repeated several times my choices: / on /dev/sdc1 (sdb1 renamed), 
swap on /dev/sdc5 and /home on /dev/sdc6
  b) but the proposed list is: / is ok, swap is not the one chosen but the 
first one found into the list (/dev/sdb2, aka sda2 renamed) and /home is simply 
ignored.
  
  Looks like the choice previously made to now use a swap file (since
  Artful) have broken the 'manual' partitioning script. The result is a
  borked grub menu, a /etc/fstab needing a manual tweak, and at the end X
- cant even start (log pointing to a 'invoke.rc.d gdm3 start' that fails.
+ cant even start (log pointing to a 'invoke.rc.d gdm3 start' that fails).
  
  That it, fully unusable. Please do a sane design matching the system one
  first.
  
  ProblemType: Bug
  DistroRelease: Ubuntu 18.10
  Package: ubiquity (not installed)
  ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17
  Uname: Linux 4.15.0-20-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7
  Architecture: amd64
  CurrentDesktop: GNOME
  Date: Sat May  5 08:45:16 2018
  EcryptfsInUse: Yes
  InstallCmdLine: BOOT_IMAGE=(loop)/linux -- quiet
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: ubiquity
  UpgradeStatus: No upgrade log present (probably fresh install)

** Tags added: bionic

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https://bugs.launchpad.net/bugs/1769311

Title:
  Usb device naming not matching the system naming

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