mkinitramfs & mkinitrd replacement and (eventually) alternate /init
Many complex storage environments running within GNL/Linux could benefit from increased disassembly and resource remediation during shutdown. Underdog an alternate /init to create a "late" user context to resume control during shutdown to park media and detach network devices.
Currently there is a fully working initramfs (mkinitramfs/mkinitrd) replacement that is capable of building the early user context images both as separate files or built into the kernel image.
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Depinit is an alternative init program that can handle parallel execution, dependencies, true roll-back, pipelines, improved signaling and unmounting filesystems on shutdown. It incorporates ideas from sysvinit, simpleinit, daemontools and make. At present, it is a bit experimental, and requires good knowledge of the initialisation process to set up.
rc.stupid a Linux daemon that:
- repeatedly runs a start script at system startup until this script exits with zero status
- regulary runs a check script
- runs a stop script at system shutdown
Why ?
Because startup systems like systemd and upstart are sometimes hard to tune in many situations, like MySQL data directory on a networked filesystem.
As rc.stupid does nothing other as running scripts (or anything that may be executed) you may find other use cases like simple clustering.
Timer wakes up the computer from the shut down state using the BIOS clock and alarm time (RTC-Alarm). The computer is booted and a user program is started. A next wake-up (restart by BIOS) is programmed and Timer shuts down the computer again.
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tcron integrates 'cron/at' with ATX power-up capability. It can invoke
multiple cron/at jobs with power-up/shutdown a day. You can use it to:
1. Power up to play muisc/sound and shutdown (super alarm).
2. Record TV/Radio programs
Printer_on is a small program which gives you a warning if you printer is powered on. You can put it in your linux shutdown script, so you'll be notified if your printer is still powered on when you shutdown your computer.