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Buster install using debootstrap.

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  Buster install using debootstrap. Marc Shapiro <marcnshap@gmail.com> - 2020-06-05 08:10 +0200
    Re: Buster install using debootstrap. Sven Hartge <sven@svenhartge.de> - 2020-06-05 08:40 +0200
      Re: Buster install using debootstrap. Greg Wooledge <wooledg@eeg.ccf.org> - 2020-06-05 13:30 +0200
        Re: Buster install using debootstrap. Sven Hartge <sven@svenhartge.de> - 2020-06-05 13:40 +0200
      Re: Buster install using debootstrap. Roberto C. Sánchez <roberto@debian.org> - 2020-06-05 14:20 +0200
      Re: Buster install using debootstrap. Marc Shapiro <marcnshap@gmail.com> - 2020-06-06 03:40 +0200
        Re: Buster install using debootstrap. (SOLVED) Marc Shapiro <marcnshap@gmail.com> - 2020-06-06 06:20 +0200

#223064 — Buster install using debootstrap.

I have just installed Buster on a spare set of partitions using 
debootstrap, as documented in:

     Appendix D.3 of the Installation Guide.


When I got to configuring networking, I just copied 
/etc/networking/interfaces, /etc/hosts, /etc/hostname, and 
/etc/resolv.conf from my Stretch partitions/directories to the Buster 
partitions/directories.

I also copied /etc/apt/sources.list and /etc/fstab from Stretch to 
Buster, editing them as needed.

I have chrooted into Buster and everything looks good.  I can run 'apt 
show' and 'dpkg -l' (I like the way the new dpkg lets you scroll through 
the list instead of just running to the end.)  What I can not do is 'apt 
update'.  When I try that, I get the following output:

# apt update
Get:1 http://security.debian.org buster/updates InRelease [65.4 kB]
Err:1 http://security.debian.org buster/updates InRelease
   Couldn't create temporary file /tmp/apt.conf.UOJmdX for passing 
config to apt-key
Get:2 http://download.virtualbox.org/virtualbox/debian buster InRelease 
[7736 B]
Err:2 http://download.virtualbox.org/virtualbox/debian buster InRelease
   Couldn't create temporary file /tmp/apt.conf.9n943a for passing 
config to apt-key
Get:4 http://http.us.debian.org/debian buster InRelease [121 kB]
Err:4 http://http.us.debian.org/debian buster InRelease
   Couldn't create temporary file /tmp/apt.conf.1btx9y for passing 
config to apt-key
Get:3 http://cdn-fastly.deb.debian.org/debian buster-backports InRelease 
[46.7 kB]
Err:3 http://cdn-fastly.deb.debian.org/debian buster-backports InRelease
   Couldn't create temporary file /tmp/apt.conf.G6FHYS for passing 
config to apt-key
Get:5 http://www.deb-multimedia.org buster InRelease [19.5 kB]
Err:5 http://www.deb-multimedia.org buster InRelease
   Couldn't create temporary file /tmp/apt.conf.Iqzykk for passing 
config to apt-key
Get:6 http://www.deb-multimedia.org buster-backports InRelease [10.4 kB]
Err:6 http://www.deb-multimedia.org buster-backports InRelease
   Couldn't create temporary file /tmp/apt.conf.Sb90kl for passing 
config to apt-key
Reading package lists... Done
W: GPG error: http://security.debian.org buster/updates InRelease: 
Couldn't create temporary file /tmp/apt.conf.UOJmdX for passing config 
to apt-key
E: The repository 'http://security.debian.org buster/updates InRelease' 
is not signed.
N: Updating from such a repository can't be done securely, and is 
therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user 
configuration details.
W: GPG error: http://download.virtualbox.org/virtualbox/debian buster 
InRelease: Couldn't create temporary file /tmp/apt.conf.9n943a for 
passing config to apt-key
E: The repository 'http://download.virtualbox.org/virtualbox/debian 
buster InRelease' is not signed.
N: Updating from such a repository can't be done securely, and is 
therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user 
configuration details.
W: GPG error: http://http.us.debian.org/debian buster InRelease: 
Couldn't create temporary file /tmp/apt.conf.1btx9y for passing config 
to apt-key
E: The repository 'http://http.us.debian.org/debian buster InRelease' is 
not signed.
N: Updating from such a repository can't be done securely, and is 
therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user 
configuration details.
W: GPG error: http://cdn-fastly.deb.debian.org/debian buster-backports 
InRelease: Couldn't create temporary file /tmp/apt.conf.G6FHYS for 
passing config to apt-key
E: The repository 'http://http.debian.net/debian buster-backports 
InRelease' is not signed.
N: Updating from such a repository can't be done securely, and is 
therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user 
configuration details.
W: GPG error: http://www.deb-multimedia.org buster InRelease: Couldn't 
create temporary file /tmp/apt.conf.Iqzykk for passing config to apt-key
E: The repository 'http://www.deb-multimedia.org buster InRelease' is 
not signed.
N: Updating from such a repository can't be done securely, and is 
therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user 
configuration details.
W: GPG error: http://www.deb-multimedia.org buster-backports InRelease: 
Couldn't create temporary file /tmp/apt.conf.Sb90kl for passing config 
to apt-key
E: The repository 'http://www.deb-multimedia.org buster-backports 
InRelease' is not signed.
N: Updating from such a repository can't be done securely, and is 
therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user 
configuration details.

I read the manpage for apt-secure and I am assuming that I am missing 
the GPG keys, but I did not see anything about this in the Installation 
Guide.  I'm sure that I missed something, somewhere, but I don't know what.

I also don't understand why it says that it could not create temporary 
files in /tmp.  I am running this as root and /tmp is owned by root.  
What am I missing?


If anyone can help me with this I would greatly appreciate it.


Marc

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#223065

Marc Shapiro <marcnshap@gmail.com> wrote:

> I also don't understand why it says that it could not create temporary 
> files in /tmp.  I am running this as root and /tmp is owned by root.  
> What am I missing?

/tmp (and /var/tmp/) should have the following permissions and rights:

 root:root 1777/drwxrwxrwt

apt runs its I/O processes as a different user "_apt" and if /tmp does
not have the sticky bit set, then it cannot create any files there,
causing the error.

Grüße,
Sven.

-- 
Sigmentation fault. Core dumped.

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#223068

On Fri, Jun 05, 2020 at 08:30:16AM +0200, Sven Hartge wrote:
> Marc Shapiro <marcnshap@gmail.com> wrote:
> 
> > I also don't understand why it says that it could not create temporary 
> > files in /tmp.  I am running this as root and /tmp is owned by root.  
> > What am I missing?
> 
> /tmp (and /var/tmp/) should have the following permissions and rights:
> 
>  root:root 1777/drwxrwxrwt
> 
> apt runs its I/O processes as a different user "_apt" and if /tmp does
> not have the sticky bit set, then it cannot create any files there,
> causing the error.

To be completely clear, it's the world-write bit that allows _apt to
create files/subdirectories there.  The sticky bit prevents other users
from removing or renaming said files/subdirectories while _apt is
using them.

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#223069

Greg Wooledge <wooledg@eeg.ccf.org> wrote:
> On Fri, Jun 05, 2020 at 08:30:16AM +0200, Sven Hartge wrote:
>> Marc Shapiro <marcnshap@gmail.com> wrote:
 
>>> I also don't understand why it says that it could not create temporary 
>>> files in /tmp.  I am running this as root and /tmp is owned by root.  
>>> What am I missing?
>> 
>> /tmp (and /var/tmp/) should have the following permissions and rights:
>> 
>>  root:root 1777/drwxrwxrwt
>> 
>> apt runs its I/O processes as a different user "_apt" and if /tmp does
>> not have the sticky bit set, then it cannot create any files there,
>> causing the error.

> To be completely clear, it's the world-write bit that allows _apt to
> create files/subdirectories there.  The sticky bit prevents other
> users from removing or renaming said files/subdirectories while _apt
> is using them.

Eh, yes, of course. Was ahead in my thoughts and mixed both facts
together.

Grüße,
Sven.

-- 
Sigmentation fault. Core dumped.

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#223072

On Fri, Jun 05, 2020 at 08:30:16AM +0200, Sven Hartge wrote:
> Marc Shapiro <marcnshap@gmail.com> wrote:
> 
> > I also don't understand why it says that it could not create temporary 
> > files in /tmp.  I am running this as root and /tmp is owned by root.  
> > What am I missing?
> 
> /tmp (and /var/tmp/) should have the following permissions and rights:
> 
>  root:root 1777/drwxrwxrwt
> 
> apt runs its I/O processes as a different user "_apt" and if /tmp does
> not have the sticky bit set, then it cannot create any files there,
> causing the error.
> 
Another thing to check (which may or may not apply in this particular
instance) is any special TMP/TEMP/TMPDIR/TEMPDIR environment variable
handling in the host environment.  On my systems I use pam_tmpdir, which
creates a user-specific temporary directory (/tmp/user/${UID}) and then
sets the TMP/TEMP/TMPDIR/TEMPDIR environment variables to that path.

When I chroot into an environment, I must take care to either ensure
those variables are unset inside the chroot or to create the necessary
directory structure with matching ownership and permissions.

Another solution is to bind mount /tmp from the host into the chroot.

Regards,

-Roberto

-- 
Roberto C. Sánchez

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#223105

On 6/4/20 11:30 PM, Sven Hartge wrote:
> Marc Shapiro <marcnshap@gmail.com> wrote:
>
>> I also don't understand why it says that it could not create temporary
>> files in /tmp.  I am running this as root and /tmp is owned by root.
>> What am I missing?
> /tmp (and /var/tmp/) should have the following permissions and rights:
>
>   root:root 1777/drwxrwxrwt
>
> apt runs its I/O processes as a different user "_apt" and if /tmp does
> not have the sticky bit set, then it cannot create any files there,
> causing the error.
>
> Grüße,
> Sven.
>
Thanks!  That took care of all the debian repositories.  Third party 
repositories are now having public key issues (not surprising).  How do 
I get and install the public key for deb-multimedia.org and virtualbox.org?


Marc

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#223106 — Re: Buster install using debootstrap. (SOLVED)

On 6/5/20 6:31 PM, Marc Shapiro wrote:
> On 6/4/20 11:30 PM, Sven Hartge wrote:
>> Marc Shapiro <marcnshap@gmail.com> wrote:
>>
>>> I also don't understand why it says that it could not create temporary
>>> files in /tmp.  I am running this as root and /tmp is owned by root.
>>> What am I missing?
>> /tmp (and /var/tmp/) should have the following permissions and rights:
>>
>>   root:root 1777/drwxrwxrwt
>>
>> apt runs its I/O processes as a different user "_apt" and if /tmp does
>> not have the sticky bit set, then it cannot create any files there,
>> causing the error.
>>
>> Grüße,
>> Sven.
>>
> Thanks!  That took care of all the debian repositories.  Third party 
> repositories are now having public key issues (not surprising).  How 
> do I get and install the public key for deb-multimedia.org and 
> virtualbox.org?
>
>
> Marc

I got the public keys for deb-multimedia.org and virtualbox.org and all 
is good.  I just needed to google a little more (after having some dinner).


Marc

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