sylware / muinit (public) (License: AFFERO GPLv3) (since 2019-09-09) (hash sha1)
minimal init linux process
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master
List of commits:
Subject Hash Author Date (UTC)
add some examples 4c3c939272dde88eee1242955d1a7832612d4bbb Sylvain BERTRAND 2014-12-08 17:29:16
Initial commit c72c14065b547486a05ade1b5975e3a1deaf9d18 Sylvain BERTRAND 2014-12-08 15:27:00
Commit 4c3c939272dde88eee1242955d1a7832612d4bbb - add some examples
Author: Sylvain BERTRAND
Author date (UTC): 2014-12-08 17:29
Committer name: Sylvain BERTRAND
Committer date (UTC): 2014-12-08 17:29
Parent(s): c72c14065b547486a05ade1b5975e3a1deaf9d18
Signing key:
Tree: 6a3c9ceae638f95a118742ca27b99f5d8c55308a
File Lines added Lines deleted
README 4 0
script/sysstart 90 0
script/sysstop 34 0
File README changed (mode: 100644) (index 5f453dc..0f3164a)
... ... of /sbin/agetty, but can just "wait" on orphan processes (--no-tty option).
3 3 Before that, it will execve|run /sbin/sysstart to start the operating system Before that, it will execve|run /sbin/sysstart to start the operating system
4 4 and wait for its completion. and wait for its completion.
5 5
6 See some examples of shell script to start/stop a linux box in script
7 directory. Don't forget to have linux binfmt_script support:module is loaded
8 by early userspace, or it's built-in.
9
6 10 No libc dependency (Oh... Yeaah!). Only a super thin wrapper layer, ulinux. No libc dependency (Oh... Yeaah!). Only a super thin wrapper layer, ulinux.
7 11
8 12 See ./make --help (you should have all required options for cross compiling See ./make --help (you should have all required options for cross compiling
File script/sysstart added (mode: 100755) (index 0000000..a325ab5)
1 #!/bin/sh
2 export PATH=/sbin:/bin:/usr/sbin:/usr/bin
3
4 mount -o nosuid,nodev,noexec,relatime -t proc proc /proc
5 mount -o nosuid,nodev,noexec,relatime -t sysfs sysfs /sys
6
7 #-------------------------------------------------------------------------------
8 #mount /dev
9 mount -o exec,nosuid,relatime,size=10M,mode=0755 -t devtmpfs udev /dev
10
11 mkdir -m 0755 -p /dev/pts
12 mount -o relatime,gid=5,mode=0620 -t devpts devpts /dev/pts
13
14 mkdir -m 1777 -p /dev/shm
15 mount -o nosuid,nodev,noexec,relatime -t tmpfs shm /dev/shm
16 #-------------------------------------------------------------------------------
17
18 mount -o nosuid,nodev,relatime,mode=0755 -t tmpfs tmpfs /run
19 rm -Rf /tmp/*
20 rm -Rf /tmp/.?*
21 hostname "amddev"
22
23 #-------------------------------------------------------------------------------
24 #mudev
25 modprobe unix
26 rm -Rf /run/udev
27 echo "" >/sys/kernel/uevent_helper
28 udevd --daemon
29 udevadm trigger --type=subsystems --action=add
30 udevadm trigger --type=devices --action=add
31
32 #those modules need /dev nodes
33 modprobe rtc-cmos
34
35 udevadm settle
36 #-------------------------------------------------------------------------------
37
38 #-------------------------------------------------------------------------------
39 #usb
40 modprobe ehci-hcd
41 modprobe ohci-hcd
42 modprobe usbhid
43 modprobe evdev
44 #-------------------------------------------------------------------------------
45
46 #-------------------------------------------------------------------------------
47 #network, could be NetworkManager (KLUDGE!), or a simple dhcp client, or IPv6
48 #autoconfiguration...
49 ip addr add 127.0.0.1/8 dev lo
50 ip addr add 192.168.1.5/24 dev eth0
51 ip link set dev lo up
52 ip link set dev eth0 up
53 ip route add default via 192.168.1.1 dev eth0
54 #-------------------------------------------------------------------------------
55
56 #-------------------------------------------------------------------------------
57 #CPUs
58 #BROKEN ON linux 3.15.3
59 #modprobe acpi-cpufreq
60 #modprobe cpufreq_ondemand
61 #cpufreq-set --cpu 0 --governor ondemand
62 #cpufreq-set --cpu 1 --governor ondemand
63 #-------------------------------------------------------------------------------
64
65 hwclock --utc --hctosys
66
67 #-------------------------------------------------------------------------------
68 #block scheduler, for a SSD drive, cfq I/O scheduler is useless
69 #modprobe cfq-iosched
70 #echo "cfq" > /sys/block/sda/queue/scheduler
71 #-------------------------------------------------------------------------------
72
73 #-------------------------------------------------------------------------------
74 #utmp/wtmp (I don't even use that stuff anymore, just for reference)
75 : >/var/run/utmp
76 chgrp utmp /var/run/utmp 2>/dev/null
77 chmod 0664 /var/run/utmp
78 if test ! -e /var/log/wtmp; then
79 : >/var/log/wtmp
80 chgrp utmp /var/log/wtmp 2>/dev/null
81 chmod 0664 /var/log/wtmp
82 fi
83 #-------------------------------------------------------------------------------
84
85 #-------------------------------------------------------------------------------
86 syslog-ng &
87 chronyd &
88 /usr/libexec/fcron &
89 /usr/sbin/sshd &
90 #-------------------------------------------------------------------------------
File script/sysstop added (mode: 100755) (index 0000000..6994645)
1 #!/bin/sh
2 trap - INT QUIT TERM
3
4 if test -e /run/chronyd.pid; then
5 /usr/bin/pkill --pidfile /run/chronyd.pid
6 else
7 echo "missing /run/chronyd.pid" 1>&2
8 fi
9
10 if test -e /var/run/fcron.pid; then
11 /usr/bin/pkill --pidfile /var/run/fcron.pid
12 else
13 echo "missing /var/run/fcron.pid" 1>&2
14 fi
15
16 #we used static configuration, hence no dhcp client
17 #/sbin/dhcpcd --exit
18
19 if test -e /var/run/syslog-ng.pid; then
20 /usr/bin/pkill --pidfile /var/run/syslog-ng.pid
21 else
22 echo "missing /var/run/syslog-ng.pid" 1>&2
23 fi
24
25 /sbin/udevadm control --exit
26 /sbin/hwclock --utc --systohc
27
28 /bin/sync
29
30 if test "$(basename $0)" = "sysreboot"; then
31 /sbin/reboot -f
32 fi
33
34 /sbin/poweroff -f
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