晋太元中，武陵人捕鱼为业。缘溪行，忘路之远近。忽逢桃花林，夹岸数百步，中无杂树，芳草鲜美，落英缤纷。渔人甚异之，复前行，欲穷其林。 　　林尽水源，便得一山，山有小口，仿佛若有光。便舍船，从口入。初极狭，才通人。复行数十步，豁然开朗。土地平旷，屋舍俨然，有良田、美池、桑竹之属。阡陌交通，鸡犬相闻。其中往来种作，男女衣着，悉如外人。黄发垂髫，并怡然自乐。 　　见渔人，乃大惊，问所从来。具答之。便要还家，设酒杀鸡作食。村中闻有此人，咸来问讯。自云先世避秦时乱，率妻子邑人来此绝境，不复出焉，遂与外人间隔。问今是何世，乃不知有汉，无论魏晋。此人一一为具言所闻，皆叹惋。余人各复延至其家，皆出酒食。停数日，辞去。此中人语云：“不足为外人道也。”(间隔 一作：隔绝) 　　既出，得其船，便扶向路，处处志之。及郡下，诣太守，说如此。太守即遣人随其往，寻向所志，遂迷，不复得路。 　　南阳刘子骥，高尚士也，闻之，欣然规往。未果，寻病终。后遂无问津者。 .
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Current File : //lib/dracut/modules.d/98pollcdrom/pollcdrom.sh
#!/bin/sh
#
# Licensed under the GPLv2
#
# Copyright 2008-2012, Red Hat, Inc.
# Harald Hoyer <harald@redhat.com>

if [ ! -e /sys/module/block/parameters/events_dfl_poll_msecs ]; then
    # if the kernel does not support autopolling
    # then we have to do a
    # dirty hack for some cdrom drives,
    # which report no medium for quiet
    # some time.
    for cdrom in /sys/block/sr*; do
        [ -e "$cdrom" ] || continue
        # skip, if cdrom medium was already found
        strstr "$(udevadm info --query=env --path=${cdrom##/sys})" \
            ID_CDROM_MEDIA && continue
        echo change > "$cdrom/uevent"
    done
fi

haha - 2025