From owner-freebsd-questions@FreeBSD.ORG Tue Apr 21 23:55:34 2015 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 9D5F7B33 for ; Tue, 21 Apr 2015 23:55:34 +0000 (UTC) Received: from fly.radel.com (fly.radel.com [70.184.242.170]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id AD57B1E64 for ; Tue, 21 Apr 2015 23:55:33 +0000 (UTC) X-CGP-ClamAV-Result: CLEAN X-VirusScanner: Niversoft's CGPClamav Helper v1.18.5 (ClamAV engine v0.98.5) Received: from [2001:470:880a:4389:b1fa:98ff:2f83:7808] (account jon@radel.com HELO gravenstein.local) by radel.com (CommuniGate Pro SMTP 6.0.11 _community_) with ESMTPSA id 646341 for freebsd-questions@freebsd.org; Tue, 21 Apr 2015 22:55:20 +0000 Message-ID: <5536D556.8090602@radel.com> Date: Tue, 21 Apr 2015 18:55:18 -0400 From: Jon Radel User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.9; rv:31.0) Gecko/20100101 Thunderbird/31.6.0 MIME-Version: 1.0 To: freebsd-questions@freebsd.org Subject: Re: chroot question References: <5536CAD9.8090607@gmail.com> In-Reply-To: <5536CAD9.8090607@gmail.com> Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha1; boundary="------------ms050606080103030502000002" X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 21 Apr 2015 23:55:34 -0000 This is a cryptographically signed message in MIME format. --------------ms050606080103030502000002 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: quoted-printable >> As root, I ran >> >> chroot --userspec=3Duser2:user2 /home/user2 >> chroot: failed to run command =E2=80=98/bin/bash=E2=80=99: Permission = denied >> >> The dir /home/user2 has in it >> all the *bin and *lib (links) and usr/*bin and usr/*lib files and=20 >> subdirs. >> >> So, what is chroot good for??? >> _______________________________________________ > > > Why don't YOU read the manual as I have read it fully (it is very short= ) > (run info chroot) > and then tell us all on the list (do not email me personally), what you= > found wrong with my invocation of the command!! Toto, we're not in Kansas anymore. chroot --userspec /bin/bash run info chroot You sure you're running FreeBSD? using chroot -u /bin/csh man chroot I can pretty much replicate your error as follows: root@stream:/home/jon # chmod -x bin/csh root@stream:/home/jon # chroot -u jon /home/jon chroot: /bin/csh: Permission denied root@stream:/home/jon # chmod +x bin/csh root@stream:/home/jon # chroot -u jon /home/jon ELF interpreter /libexec/ld-elf.so.1 not found Abort root@stream:/home/jon # Where the 2nd round of errors comes about since I did *not* bother=20 copying all the linked "stuff" into the chroot. So maybe start by making sure the chrooted user actually has permission=20 to execute the bin/bash in the chroot environment??? Sometimes error messages mean what they say. ;-) --Jon Radel jon@radel.com --------------ms050606080103030502000002 Content-Type: application/pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature MIAGCSqGSIb3DQEHAqCAMIACAQExCzAJBgUrDgMCGgUAMIAGCSqGSIb3DQEHAQAAoIIKrzCC BK8wggOXoAMCAQICEQDgI8sVEoNTia1hbnpUZ2shMA0GCSqGSIb3DQEBCwUAMG8xCzAJBgNV BAYTAlNFMRQwEgYDVQQKEwtBZGRUcnVzdCBBQjEmMCQGA1UECxMdQWRkVHJ1c3QgRXh0ZXJu YWwgVFRQIE5ldHdvcmsxIjAgBgNVBAMTGUFkZFRydXN0IEV4dGVybmFsIENBIFJvb3QwHhcN MTQxMjIyMDAwMDAwWhcNMjAwNTMwMTA0ODM4WjCBmzELMAkGA1UEBhMCR0IxGzAZBgNVBAgT EkdyZWF0ZXIgTWFuY2hlc3RlcjEQMA4GA1UEBxMHU2FsZm9yZDEaMBgGA1UEChMRQ09NT0RP IENBIExpbWl0ZWQxQTA/BgNVBAMTOENPTU9ETyBTSEEtMjU2IENsaWVudCBBdXRoZW50aWNh dGlvbiBhbmQgU2VjdXJlIEVtYWlsIENBMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKC AQEAibEN2npTGU5wUh28VqYGJre4SeCW51Gr8fBaE0kVo7SMG2C8elFCp3mMpCLfF2FOkdV2 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