/usr/share/initramfs-tools/scripts/init-bottom/plymouth doesn't check for splash/nosplash

[Serhiy]

That results in this error during boot:

/scripts/init-bottom/plymouth: line 18: /bin/plymouth: not found

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: plymouth 0.9.2-3ubuntu13
ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6
Uname: Linux 4.4.0-21-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.20.1-0ubuntu2
Architecture: amd64
BootLog: Error: [Errno 2] Немає такого файла або каталогу: '/var/log/boot.log'
CurrentDesktop: KDE
Date: Wed May 4 23:17:46 2016
DefaultPlymouth: Error: command ['readlink', '/etc/alternatives/default.plymouth'] failed with exit code 1:
MachineType: LENOVO 20208
ProcCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-21-generic root=/dev/mapper/ocz-root ro quiet libata.force=1.00:noncq resume=/dev/mapper/ocz-swap_1 crashkernel=384M-:128M crashkernel=384M-:128M
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-21-generic root=/dev/mapper/ocz-root ro quiet libata.force=1.00:noncq resume=/dev/mapper/ocz-swap_1 crashkernel=384M-:128M crashkernel=384M-:128M
SourcePackage: plymouth
TextPlymouth: Error: command ['readlink', '/etc/alternatives/text.plymouth'] failed with exit code 1:
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/15/2014
dmi.bios.vendor: LENOVO
dmi.bios.version: H1ET85WW(1.23)
dmi.board.asset.tag: Not Available
dmi.board.name: 20208
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvrH1ET85WW(1.23):bd04/15/2014:svnLENOVO:pn20208:pvrLenovoB590:rvnLENOVO:rn20208:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 20208
dmi.product.version: Lenovo B590
dmi.sys.vendor: LENOVO
upstart.plymouth.override: Error: [Errno 13] Відмовлено у доступі: '/etc/init/plymouth.override'

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[axel (axel334)]

I guess I am affected. I want to disable plymouth because of nvidia displaying plymouth ugly (well known issue). In /etc/default/grub I set:
GRUB_CMDLINE_LINUX_DEFAULT="quiet nosplash"

but after system start it shows me:
/scripts/init-bottom/plymouth: line 18: /bin/plymouth: not found

The same problem had another user:
https://www.kubuntuforums.net/showthread.php?69439-Is-plymouth-required
I followed the topic but with no success

I even # all lines in plymouth file located in:
/usr/share/initramfs-tools/scripts/init-premount
No effects.

This bug report might be related to the problem
https://bugs.launchpad.net/ubuntu/+source/plymouth/+bug/1525699
In comment 6 it says: status: Fix Committed → Confirmed
but I don't want plymouth. With nvidia it looks ugly and seems to slow down loading the system.

[Serhiy (xintx-ua)]

Did you update your initramfs after editing the script? IIRC, it's enough to run it with -u:
update-initramfs -u

[axel (axel334)]

Yes, I did
sudo update-initramfs -u
sudo update-grub

I noticed this plymouth file refers to cat /proc/cmdline, here is mine:
BOOT_IMAGE=/boot/vmlinuz-4.4.0-24-generic root=UUID=...6349b6d1 ro quiet nosplash

It is on Xenial 64-bit.