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m.b.j.
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Joined: 12 Sep 2003
Posts: 407
Location: Germany (Essen)
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 Posted: Wed Jul 21, 2004 5:25 pm Post subject: Problems with mount... (bug) ? |
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The situartion:
(as root)
| Code: |
cd home/someuser #Could be an other non root users usabel Place!
mkdir dir1 # Creating the dirs fir mount --bind
mkdir dir2 # ...
touch dir1/testfile
chown -R someuser dir*
mount --bind -r dir1/ dir2/ # Want to have appear the things from dir1 in dir2 readonly.....
su somesuser # Checking the situration as a normal user.....
cd dir2 # .....
rm testfile # It works anything wrong with my system?
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This ist just a question Im not very good with linux, but should a mount by root with readonly option allow to remove|change the mounted files by users, I do not think so......, (Ok the source files are owned by the user) could anybody explain?
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root@mbj # echo "sys-pizza/calzone -tunfish" >> /etc/paludis/use.conf
root@mbj # paludis -i calzone --dl-blocks discard |
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jdgill0
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Joined: 25 Mar 2003
Posts: 1366
Location: Lexington, Ky -- USA
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| Posted: Thu Jul 22, 2004 3:59 am Post subject: |
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| Code: | | chown -R someuser dir* |
makes the directories dir1 and dir2 and their contents owned by someuser.
Since you
you can do what you want with those files and directories.
[edit]
as for the r mount option , it could be the --bind option causes mount to ignore it. |
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m.b.j.
Guru
Joined: 12 Sep 2003
Posts: 407
Location: Germany (Essen)
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| Posted: Thu Jul 22, 2004 9:32 am Post subject: |
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Ok, i have to try an other way to let my users use some progs readonly inside a chroot, thx for the reply!
_________________
root@mbj # echo "sys-pizza/calzone -tunfish" >> /etc/paludis/use.conf
root@mbj # paludis -i calzone --dl-blocks discard |
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jdgill0
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Joined: 25 Mar 2003
Posts: 1366
Location: Lexington, Ky -- USA
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| Posted: Thu Jul 22, 2004 2:21 pm Post subject: |
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You could try the following. It might not be the best or most elegant solution, but it would work.
Go ahead and mount --bind like you were doing. Instead of making the files owned by someuser:users, make them owned by root:users, i.e. chown -R root:users dir2. By default the files and subdirectories of dir2 should be read-only for group users.
[edit]
I just realized setting permissions on dir2/ will also set the permissions on dir1/. So you could do chown -R root:users dir1, then do [i]mount --bind dir1/ dir2/[i]. |
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