132 lines
2.9 KiB
Markdown
132 lines
2.9 KiB
Markdown
---
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publish: true
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permalink: /10-19 LIFE/13 TECH SETUP/13.13 OS SETUP/Plymouth.md
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title: Plymouth
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created: 2026-02-05T09:31:46.739-07:00
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modified: 2026-02-05T09:43:32.507-07:00
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tags:
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- boot
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- splash
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- luks
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cssclasses: ""
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---
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Plymouth provides a graphical boot splash screen, including during LUKS password entry.
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## Installation
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```bash
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sudo pacman -S plymouth
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```
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## Configuration
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### mkinitcpio (systemd hooks)
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I use systemd-based initramfs hooks. Edit `/etc/mkinitcpio.conf`:
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```bash
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HOOKS=(base systemd autodetect microcode modconf kms keyboard sd-vconsole plymouth sd-encrypt block filesystems resume fsck)
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```
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Key points:
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- Using `systemd` not `udev`
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- Using `sd-vconsole` not `keymap consolefont`
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- Using `sd-encrypt` not `encrypt`
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- `plymouth` comes **after** `sd-vconsole` and **before** `sd-encrypt`
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Regenerate initramfs:
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```bash
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sudo mkinitcpio -P
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```
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### Kernel Parameters
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Add `splash` to your bootloader config.
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**For Limine** (`/boot/EFI/limine/limine.conf`):
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```
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cmdline: quiet splash rd.luks.uuid=<UUID> root=/dev/mapper/root ...
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```
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> **Note:** With systemd hooks, use `rd.luks.uuid=` instead of `cryptdevice=`
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**For systemd-boot** (`/boot/loader/entries/arch.conf`):
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```
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options quiet splash rd.luks.uuid=<UUID> root=/dev/mapper/root ...
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```
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### Set Theme
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```bash
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# List available themes
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plymouth-set-default-theme -l
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# Set theme (and rebuild initramfs)
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sudo plymouth-set-default-theme -R spinner
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```
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Popular themes:
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- `spinner` — Simple spinner (default)
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- `bgrt` — Uses manufacturer logo from ACPI
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- `fade-in` — Fading star field
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### Install more themes
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```bash
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paru -S plymouth-theme-arch-logo
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paru -S plymouth-theme-monoarch
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```
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## LUKS Integration
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Plymouth displays the LUKS password prompt graphically instead of the text console.
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For this to work with systemd hooks:
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1. `plymouth` hook must be before `sd-encrypt` hook
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2. `splash` must be in kernel parameters
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3. Use `rd.luks.uuid=` for LUKS device specification
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## systemd vs udev Hooks
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| udev-based | systemd-based |
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|------------|---------------|
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| `udev` | `systemd` |
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| `keymap consolefont` | `sd-vconsole` |
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| `encrypt` | `sd-encrypt` |
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| `cryptdevice=UUID=...:name` | `rd.luks.uuid=...` |
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## Testing
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Test without rebooting:
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```bash
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sudo plymouthd
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sudo plymouth --show-splash
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# Press Enter to dismiss
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sudo plymouth quit
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```
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## Troubleshooting
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### No splash on boot
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1. Verify `splash` is in kernel params
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2. Check hook order in mkinitcpio.conf
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3. Regenerate initramfs: `sudo mkinitcpio -P`
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### LUKS prompt is text-only
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The `plymouth` hook must come **before** `sd-encrypt`:
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```bash
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HOOKS=(... sd-vconsole plymouth sd-encrypt ...)
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```
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### View boot messages
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Remove `quiet` temporarily to see boot messages if Plymouth isn't working.
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## Resources
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- Arch Wiki: https://wiki.archlinux.org/title/Plymouth
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- Arch Wiki (mkinitcpio systemd): https://wiki.archlinux.org/title/Mkinitcpio#Common_hooks
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