[Bug 1863672] Re: The 'new' persistent live method starting in 19.10 no longer works

[sudodus]

@ C.S.Cameron (cscameron),

I think I understand now. You can remove the boot option maybe-ubiquity
from the 'linux line' of grub.cfg:

from

menuentry "Ubuntu - persistent live" {
 search --set=root --fs-uuid 2020-04-23-07-51-42-00
        set gfxpayload=keep
        linux   ($root)/casper/vmlinuz  file=/cdrom/preseed/ubuntu.seed maybe-ubiquity quiet splash persistent ---
        initrd  ($root)/casper/initrd
}

to

menuentry "Ubuntu - persistent live" {
 search --set=root --fs-uuid 2020-04-23-07-51-42-00
        set gfxpayload=keep
        linux   ($root)/casper/vmlinuz  file=/cdrom/preseed/ubuntu.seed  quiet splash persistent ---
        initrd  ($root)/casper/initrd
}

If you confirm that this is what you mean, I can modify that in mkusb-
dus (the shellscript dus-persistent), maybe also in mkusb-plug (the
shellscript mkusb-sedd).

When dropping the option maybe-ubiquity, the option to select language
(via grub) will also be dropped. Maybe it is worthwhile to keep this
option anyway, or to create an extra menuentry for the purpose to select
language?

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https://bugs.launchpad.net/bugs/1863672

Title:
  The 'new' persistent live method starting in 19.10 no longer works

Status in casper package in Ubuntu:
  Fix Released

Bug description:
  I am iso-testing Focal Fossa and I am creating and maintaining tools
  to create live and persistent live USB drives. Lubuntu Focal daily
  live dated 2020-02-12 works. But the current version of Lubuntu Focal
  dated 2020-02-16 (zsynced approx. one hour ago) does not work when
  using exactly the same method using mkusb-plug, that edits the iso
  file to replace 'quiet splash' with 'persistent  ' /12 characters/ and
  creating an ext partition behind it.

  I noticed that the version of casper has changed from 1.438build1
  (when it worked) to 1.439 so I suspect that this has caused the
  failure.

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: casper 1.439
  ProcVersionSignature: Ubuntu 5.4.0-14.17-generic 5.4.18
  Uname: Linux 5.4.0-14-generic x86_64
  ApportVersion: 2.20.11-0ubuntu16
  Architecture: amd64
  CasperVersion: 1.439
  CurrentDesktop: LXQt
  Date: Mon Feb 17 20:54:54 2020
  LiveMediaBuild: Lubuntu 20.04 LTS "Focal Fossa" - Alpha amd64 (20200216)
  SourcePackage: casper
  UpgradeStatus: No upgrade log present (probably fresh install)
  mtime.conffile..etc.casper.conf: 2020-02-17T20:52:45.667205

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