mirror of
https://gitlab.com/sortix/sortix.git
synced 2023-02-13 20:55:38 -05:00
85 lines
2.6 KiB
Bash
Executable file
85 lines
2.6 KiB
Bash
Executable file
#!/bin/sh
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# Copyright (c) 2015, 2016, 2017 Jonas 'Sortie' Termansen.
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#
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# Permission to use, copy, modify, and distribute this software for any
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# purpose with or without fee is hereby granted, provided that the above
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# copyright notice and this permission notice appear in all copies.
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#
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# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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#
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# update-initrd
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# Generate a mkinitrd that locates and chain boots the real root filesystem.
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set -e
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sysroot=
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dashdash=
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previous_option=
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for argument do
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if test -n "$previous_option"; then
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eval $previous_option=\$argument
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previous_option=
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continue
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fi
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case $argument in
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*=?*) parameter=$(expr "X$argument" : '[^=]*=\(.*\)' || true) ;;
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*=) parameter= ;;
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*) parameter=yes ;;
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esac
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case $dashdash$argument in
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--) dashdash=yes ;;
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--sysroot=*) sysroot=$parameter ;;
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--sysroot) previous_option=sysroot ;;
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-*) echo "$0: unrecognized option $argument" >&2
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$option_checking && exit 1 ;;
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*) echo "$0: unexpected operand $argument" >&2
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exit 1 ;;
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esac
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done
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if test -n "$previous_option"; then
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echo "$0: option '$argument' requires an argument" >&2
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exit 1
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fi
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sysmerge=false
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exec_prefix="$sysroot"
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if [ -d "$sysroot/sysmerge" ]; then
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# If an upgrade is pending, invoke the update-initrd of the new system, if
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# we're not already it.
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if [ "$(realpath -- "$(which -- "$0")")" != \
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"$(realpath -- "$sysroot/sysmerge/sbin/update-initrd")" ]; then
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exec "$sysroot/sysmerge/sbin/update-initrd" "$@"
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fi
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sysmerge=true
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exec_prefix="$sysroot/sysmerge"
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fi
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if [ ! -e "$sysroot/etc/fstab" ]; then
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echo "$0: $sysroot/etc/fstab: Need a filesystem table to make an initrd" >&2
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exit 1
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fi
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tmp=$(mktemp -d)
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trap 'rm -rf "$tmp"' EXIT HUP INT QUIT TERM
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mkdir "$tmp/bin"
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mkdir "$tmp/sbin"
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cp "$exec_prefix/sbin/init" "$tmp/sbin"
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cp "$exec_prefix/sbin/extfs" "$tmp/sbin"
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test -f "$exec_prefix/sbin/fsck.ext2" &&
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cp "$exec_prefix/sbin/fsck.ext2" "$tmp/sbin"
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mkdir "$tmp/etc"
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cp "$sysroot/etc/fstab" "$tmp/etc/fstab"
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mkdir "$tmp/etc/init"
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if $sysmerge; then
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echo chain-merge > "$tmp/etc/init/target"
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else
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echo chain > "$tmp/etc/init/target"
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fi
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mkdir -p "$sysroot/boot"
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mkinitrd --format=sortix-initrd-2 "$tmp" -o "$sysroot/boot/sortix.initrd" > /dev/null
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