def run(self):
# check partman availability
if not Spawned.do("which partman", with_status=True).success:
_tlog("[II] partman not found => skip PartmanHelper actions")
return
script = re_script()
self.visuals_updater = create_py_script(script)
SpawnedSU.do_script(f"""
echo "Waiting for PARTMAN files in '{PARTMAN_BASE}' ..."
while [ ! -d {PARTMAN_BASE} ]; do
sleep 1
done
echo ""PARTMAN files found. Ready for processing.""
""")
for p in self.scheme:
if p.mountpoint and not p.isspecial:
self.mark_to_use(p.url, p.mountpoint, p.do_format, p.fs)
def mark_to_use(self, volume_url, mountpoint, do_format, fs):
volume_path = self.resolver.pm_resolve_volume_path(volume_url)
SpawnedSU.do_script(f"""
while [ ! -d {volume_path} ]
do
sleep 1
echo "waiting for {volume_path} ..."
done
touch {volume_path}/existing
touch {volume_path}/formatable
touch {volume_path}/use_filesystem
echo "{mountpoint}" > {volume_path}/mountpoint
if [ "{do_format}" == "True" ]; then
touch {volume_path}/format
echo "format" > {volume_path}/method
echo "{fs}" > {volume_path}/filesystem
echo "{fs}" > {volume_path}/acting_filesystem
else
echo "keep" > {volume_path}/method
while [ ! -f {volume_path}/detected_filesystem ]
do
sleep 1
echo "waiting for {volume_path}/detected_filesystem ..."
done
cat {volume_path}/detected_filesystem > {volume_path}/acting_filesystem
cat {volume_path}/detected_filesystem > {volume_path}/filesystem
fi
# replace visuals
echo "{mountpoint}" > {volume_path}/visual_mountpoint
python3 "{self.visuals_updater}" "{volume_path}/view" "{do_format}" "{mountpoint}"
python3 "{self.visuals_updater}" "{volume_path}/../partition_tree_cache" "{do_format}" "{mountpoint}"
python3 "{self.visuals_updater}" "{PARTMAN_BASE}/snoop" "{do_format}" "{mountpoint}"
""")
def _prepare_installation(self):
# clear partman cache
SpawnedSU.do("rm -rf /var/lib/partman")
# clear debconf cache
# note: removing the DB leads the ubiquity installer to crash
SpawnedSU.do_script("""
if [ ! -d /var/cache/debconf.back ]; then
cp -r /var/cache/debconf/ /var/cache/debconf.back
else
rm -rf /var/cache/debconf
cp -r /var/cache/debconf.back /var/cache/debconf
fi
""")
# ensure crypt/lvm volumes are available
dm_list = Spawned.do(f"ls /dev/mapper", list_=True)
for pt in [pt for pt in self.scheme if pt.mapperID]:
if isinstance(pt.parent, Disk) and pt.mapperID not in dm_list:
pt.execute(Involve())
# wait for Partman and modify values in background
PartmanHelper(self.scheme).run()