今天见鬼了,文件有执行权限,却提示权限不够 - V2EX
Distributions
Ubuntu
Fedora
CentOS
中文资源站
网易开源镜像站
linuxgo
V2EX    Linux

今天见鬼了,文件有执行权限,却提示权限不够

  •  
  •   linuxgo Jan 30, 2023 3338 views
    This topic created in 1204 days ago, the information mentioned may be changed or developed.
    今天 clone 了一个仓库准备编译软件,compile.sh 是有 x 权限的,但是我直接./comp 再用 tab 却出不来,然后又用 bash compile.sh,却提示权限不够。
    于是 chmod 777 compile.sh,结果还是提示权限不够,再用 sudo ./compile.sh ,依然不能执行,真是见鬼了。
    这是什么情况呀,从来没遇到过,请各位指点下
    7 replies    2023-01-30 15:06:56 +08:00
    linuxgo
        1
    linuxgo  
    OP
       Jan 30, 2023
    情况见图
    linuxgo
        2
    linuxgo  
    OP
       Jan 30, 2023
    刚才发现,挂在 mnt 下的文件不能执行(因为系统盘不够了,所以加了一块硬盘放在 mnt 下)。我把整个目录的 owner 改为 root 后用 sudo 可以了,我去,这 mnt 竟然有限制
    duke807
        3
    duke807  
       Jan 30, 2023 via Android
    查你的 mount 参数,是否打开了:不允许可执行
    xuyang2
        4
    xuyang2  
       Jan 30, 2023
    compile.sh 里面识别到非 root ,就用 sudo 调用自己?

    (伪代码)是 bash self.sh 还是 ./self.sh ?
    mijazz
        5
    mijazz  
       Jan 30, 2023
    看 op 描述应该是 mount option 的问题,跟#3 一致。

    https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/6/html/storage_administration_guide/sect-using_the_mount_command-mounting-options

    mount 来当外置盘,习惯就会给 rw ,但是应该不会习惯给 noexec 吧。简直是排查噩梦
    linuxgo
        6
    linuxgo  
    OP
       Jan 30, 2023 via Android
    @mijazz 是的,mount 是给了 wr ,看 mount 参数,默认就是 exec 的,有点搞不懂了
    winglight2016
        7
    winglight2016  
       Jan 30, 2023
    可能是操作系统的默认行为吧,比如 macos 挂 ntfs 盘,默认只读
    About     Help     Advertise     Blog     API     FAQ     Solana     5550 Online   Highest 6679       Select Language
    创意工作者们的社区
    World is powered by solitude
    VERSION: 3.9.8.5 48ms UTC 08:04 PVG 16:04 LAX 01:04 JFK 04:04
    Do have faith in what you're doing.
    ubao msn snddm index pchome yahoo rakuten mypaper meadowduck bidyahoo youbao zxmzxm asda bnvcg cvbfg dfscv mmhjk xxddc yybgb zznbn ccubao uaitu acv GXCV ET GDG YH FG BCVB FJFH CBRE CBC GDG ET54 WRWR RWER WREW WRWER RWER SDG EW SF DSFSF fbbs ubao fhd dfg ewr dg df ewwr ewwr et ruyut utut dfg fgd gdfgt etg dfgt dfgd ert4 gd fgg wr 235 wer3 we vsdf sdf gdf ert xcv sdf rwer hfd dfg cvb rwf afb dfh jgh bmn lgh rty gfds cxv xcv xcs vdas fdf fgd cv sdf tert sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf shasha9178 shasha9178 shasha9178 shasha9178 shasha9178 liflif2 liflif2 liflif2 liflif2 liflif2 liblib3 liblib3 liblib3 liblib3 liblib3 zhazha444 zhazha444 zhazha444 zhazha444 zhazha444 dende5 dende denden denden2 denden21 fenfen9 fenf619 fen619 fenfe9 fe619 sdf sdf sdf sdf sdf zhazh90 zhazh0 zhaa50 zha90 zh590 zho zhoz zhozh zhozho zhozho2 lislis lls95 lili95 lils5 liss9 sdf0ty987 sdft876 sdft9876 sdf09876 sd0t9876 sdf0ty98 sdf0976 sdf0ty986 sdf0ty96 sdf0t76 sdf0876 df0ty98 sf0t876 sd0ty76 sdy76 sdf76 sdf0t76 sdf0ty9 sdf0ty98 sdf0ty987 sdf0ty98 sdf6676 sdf876 sd876 sd876 sdf6 sdf6 sdf9876 sdf0t sdf06 sdf0ty9776 sdf0ty9776 sdf0ty76 sdf8876 sdf0t sd6 sdf06 s688876 sd688 sdf86