89 lines
1.5 KiB
Bash
89 lines
1.5 KiB
Bash
mo() {
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local root="${1}"
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local directory file
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if [ -n "${root}" ]; then
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root="$(realpath "${root}")"
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file="${root}/filesystem.squashfs"
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if mkdir "overlay"; then
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cd "overlay"
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for directory in "lower" "upper" "work" "mount"; do
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mkdir "${directory}"
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done
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if mount "${file}" "lower"; then
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mount \
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-o lowerdir="lower",upperdir="upper",workdir="work" \
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-t "overlay" \
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"overlay" "mount"
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fi
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cd ..
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fi
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else
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log_fatal "No root"
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return 1
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fi
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}
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uo() {
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cd "overlay"
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if umount "mount"; then
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rmdir "mount"
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rm --recursive "upper" "work"
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if umount "lower"; then
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rmdir "lower"
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fi
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fi
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cd ..
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rmdir "overlay"
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}
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mr() {
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local f
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for f in "dev" "dev/pts" "proc" "sys"; do
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mount --bind "/${f}" "overlay/mount/${f}"
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done
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}
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alias cr="\
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chroot \
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\"overlay/mount\" \
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"
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alias cru="\
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chroot \
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--userspec \"1000:1000\" \
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\"overlay/mount\" \
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"
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ur() {
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local f
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for f in "sys" "proc" "dev/pts" "dev"; do
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umount --lazy "overlay/mount/${f}"
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done
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}
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mm() {
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mount --make-rslave --rbind "/deb" "overlay/mount/deb"
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}
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um() {
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umount --recursive "overlay/mount/deb"
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}
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ms() {
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local directory="${1}"
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local file
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local level="${2}"
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if [ -n "${directory}" ]; then
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if mkdir "${directory}"; then
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[ -n "${level}" ] || level="18"
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for file in "vmlinuz" "initrd.img"; do
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cp "overlay/mount/${file}" "${directory}"
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done
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mksquashfs \
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"overlay/mount" "${directory}/filesystem.squashfs" \
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-noappend \
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-comp "zstd" -Xcompression-level "${level}"
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chown --recursive 1000:1000 "${directory}"
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fi
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fi
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}
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