[linux-help] Re: 'chroot' help.

[Wang Min <wangmin@xxxxxxxxxxxxx>]

Dear Sir,

Everything is fine until I execute 'sudo....', I cannot find sudo in my system 
as well as the RPMS files,so what is 'sudo' and what is his job?
BTW,although I cannot get sudo to work, I test 'chroot /tmp /bin/sh', it 
already works, the prompt is '[I have no name!@server /]#'(my server's name is 
server), why I have no name? I do have got a name Wang :-).
Thanks for your time.

Wang

----- Original Message -----
>On Sat, 20 May 2000, Wang Min wrote:
>
>> I am testing the chroot function, I think 'man chroot' talking
>> about nothing, I test the following commands 'chroot /tmp
>> /bin/sh', the error is 'chroot: cannot execute /bin/sh: No
>> such file or directory', as a matter of fact, there is bin,
>> sbin, usr, usr/sbin...sub-directory in /tmp, and there are the
>> appropriate files in the directories, what should I do to
>> implement chroot?
>
>You've got a good start, but since /bin/sh (probably /bin/bash) is
>dynamically linked, you need it's libraries:
>$ ldd /bin/sh
>        libtermcap.so.2 => /lib/libtermcap.so.2 (0x40019000)
>        libc.so.6 => /lib/libc.so.6 (0x4001d000)
>        /lib/ld-linux.so.2 => /lib/ld-linux.so.2 (0x40000000)
>
>$ mkdir -p /tmp/usr/lib /tmp/lib /tmp/sbin /tmp/etc
>$ cp /lib/libtermcap.so.2 /lib/libc.so.6 /lib/ld-linux.so.2 /tmp/lib
>$ cp /sbin/ldconfig /tmp/sbin
>$ sudo /usr/sbin/chroot /tmp /sbin/ldconfig
>$ sudo /usr/sbin/chroot /tmp /bin/sh
>bash#
>
>-jeff
>-- 
>What do you think about these so-called anti-homelessness laws?  "I don't think
>them as anti-homelessness laws. I think of them as pro-homeowner laws." Thomas
>Canby, Ceramic Engineer. http://www.theonion.com/onion3547/wdyt_3547.html
>
>
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