86 lines
1.4 KiB
Bash
86 lines
1.4 KiB
Bash
mo() {
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local directory="${1}"
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local file
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if [ "${directory}" ] ; then
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directory="$(realpath "${directory}")"
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file="${directory}/filesystem.squashfs"
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if mkdir "overlay" ; then
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cd "overlay"
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mkdir {lower,upper,work,mount}
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if mount "${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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echo "KO: directory?"
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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 level="${2}"
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if [ "${directory}" ] ; then
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if mkdir "${directory}" ; then
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[ "${level}" ] || level="18"
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cp overlay/mount/{vmlinuz,initrd.img} "${directory}"
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mksquashfs \
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"overlay/mount" "${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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