forked from mirrored-repos/manjaro-tools
54 lines
1.8 KiB
Bash
54 lines
1.8 KiB
Bash
#!/bin/bash
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; version 2 of the License.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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ignore_error() {
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"$@" 2>/dev/null
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return 0
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}
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create_min_fs(){
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msg "Creating install root at $1"
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mkdir -m 0755 -p $1/var/{cache/pacman/pkg,lib/pacman,log} $1/{dev,run,etc}
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mkdir -m 1777 -p $1/tmp
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mkdir -m 0555 -p $1/{sys,proc}
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}
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chroot_mount() {
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mount "$@" && CHROOT_ACTIVE_MOUNTS=("$2" "${CHROOT_ACTIVE_MOUNTS[@]}")
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}
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chroot_mount_conditional() {
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local cond=$1; shift
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if eval "$cond"; then
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chroot_mount "$@"
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fi
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}
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chroot_api_mount() {
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CHROOT_ACTIVE_MOUNTS=()
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[[ $(trap -p EXIT) ]] && die 'Error! Attempting to overwrite existing EXIT trap'
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trap 'chroot_api_umount' EXIT
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chroot_mount_conditional "! mountpoint -q '$1'" "$1" "$1" --bind &&
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chroot_mount proc "$1/proc" -t proc -o nosuid,noexec,nodev &&
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chroot_mount sys "$1/sys" -t sysfs -o nosuid,noexec,nodev,ro &&
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# ignore_error chroot_mount_conditional "[[ -d '$1/sys/firmware/efi/efivars' ]]" \
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# efivarfs "$1/sys/firmware/efi/efivars" -t efivarfs -o nosuid,noexec,nodev &&
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chroot_mount udev "$1/dev" -t devtmpfs -o mode=0755,nosuid &&
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chroot_mount devpts "$1/dev/pts" -t devpts -o mode=0620,gid=5,nosuid,noexec &&
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chroot_mount shm "$1/dev/shm" -t tmpfs -o mode=1777,nosuid,nodev &&
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chroot_mount run "$1/run" -t tmpfs -o nosuid,nodev,mode=0755 &&
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chroot_mount tmp "$1/tmp" -t tmpfs -o mode=1777,strictatime,nodev,nosuid
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}
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chroot_api_umount() {
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umount "${CHROOT_ACTIVE_MOUNTS[@]}"
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unset CHROOT_ACTIVE_MOUNTS
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}
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