Arch Linux

karb94

Member

Registered: 2019-12-15

Posts: 10

[SOLVED] makepkg via a script run by root

I am trying to put together a script to install and configure Arch automatically. Once the installation part is done and I log in as root I want to run a script to configure and install everything I will need. This includes building aurutils by running the following script (simplified to show the relevant parts):

username=user1

sudo -u $username -H bash << EOF
mkdir \$HOME/.builds
gpg --verbose --recv-keys DBE7D3DD8C81D58D0A13D0E76BC26A17B9B7018A
aurutils_url="https://aur.archlinux.org/cgit/aur.git/snapshot/aurutils.tar.gz"
curl \$aurutils_url | tar xvz --directory \$HOME/.builds
cd \$HOME/.builds/aurutils

# This is just to give some context
#############
echo "\$HOME"
whoami
groups
#############

makepkg -s
EOF

After correctly creating the .builds/ directory and downloading and extracting the snapshot I get the following output:

/home/user1
user1
sudo
==> Making package: aurutils 2.3.3-1 (Sun 15 Dec 2019 14:49:38 GMT)
==> Checking runtime dependencies...
==> Installing missing dependencies...
resolving dependencies...
looking for conflicting packages...

Packages (7) oniguruma-6.9.4-1  diffstat-1.62-1  expac-10-1  jq-1.6-2  pacutils-0.9.0-1  parallel-20191122-1  wget-1.20.3-2

Total Download Size:   2.71 MiB
Total Installed Size:  8.06 MiB

:: Proceed with installation? [Y/n] ==> ERROR: 'pacman' failed to install missing dependencies.
==> Missing dependencies:
  -> jq
  -> expac
  -> diffstat
  -> pacutils
  -> parallel
  -> wget
==> Checking buildtime dependencies...
==> ERROR: Could not resolve all dependencies.

The sudo group has root privilege:

grep %sudo /etc/sudoers
%sudo    ALL=(ALL) ALL

However, if I bring the makepkg -s outside the heredoc like so:

username=user1

sudo -u $username -H bash << EOF
mkdir \$HOME/.builds
gpg --verbose --recv-keys DBE7D3DD8C81D58D0A13D0E76BC26A17B9B7018A
aurutils_url="https://aur.archlinux.org/cgit/aur.git/snapshot/aurutils.tar.gz"
curl \$aurutils_url | tar xvz --directory \$HOME/.builds
cd \$HOME/.builds/aurutils

# This is just to give some context
#############
echo "\$HOME"
whoami
groups
#############
EOF

cd /home/$username/.builds/aurutils
sudo -u $username makepkg -s

It just works.

I could just use this version but I really wonder what is going on in the first script that prevents pacman from installing the packages,

All I could find related to this error is that it appears when you are building a package that requires AUR dependencies that are not installled but this is not the case here (all of them are form official repos).

Last edited by karb94 (2019-12-15 23:18:01)

merlock

Member

Registered: 2018-10-30

Posts: 262

Re: [SOLVED] makepkg via a script run by root

You probably aren't going to get too many helpful hints, considering you are making a "install Arch without following the wiki" script.

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ewaller

Administrator

From: Pasadena, CA

Registered: 2009-07-13

Posts: 20,703

Re: [SOLVED] makepkg via a script run by root

Not sure, but I seem to recall that makepkg will refuse to run as root.

And, as merlock points out, this is fine if this is for your own use -- but trying to make this into a tool intended for general use by others will be fruitless.  There are just too many variables.

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karb94

Member

Registered: 2019-12-15

Posts: 10

Re: [SOLVED] makepkg via a script run by root

You probably aren't going to get too many helpful hints, considering you are making a "install Arch without following the wiki" script.

The error will appear regardless of the installation method. The installation script and the "configuration" script are separate. Although I understand that everything that is not line by line commands is not "supported". This is only for my own use.

Not sure, but I seem to recall that makepkg will refuse to run as root.

sudo -u user should take care of this. As a matter of fact, if you run makepkg directly as root it will clearly state that you should not run makepkg as a root in the error message which is not the case here.

Last edited by karb94 (2019-12-15 16:13:18)

Trilby

Inspector Parrot

Registered: 2011-11-29

Posts: 30,526

Website

Re: [SOLVED] makepkg via a script run by root

How do you intend for the password to be passed to pacman run from makepkg?  You could add `pacman` to sudoers with NOPASSWD, but really just installing the dependencies first as root before running makepkg seems better to me.

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"UNIX is simple and coherent" - Dennis Ritchie; "GNU's Not Unix" - Richard Stallman

karb94

Member

Registered: 2019-12-15

Posts: 10

Re: [SOLVED] makepkg via a script run by root

How do you intend for the password to be passed to pacman run from makepkg?

Well somehow sudo -u $username makepkg -s works on its own. I just don't understand the difference. Anyways, this is better than installing the dependencies with root and then building the packages since I don't need to update it if the dependencies change so I will stick to this for now. Thank you.

Lone_Wolf

Administrator

From: Netherlands, Europe

Registered: 2005-10-04

Posts: 15,472

Re: [SOLVED] makepkg via a script run by root

Makepkg uses fakeroot to install build things, this probably has nothing to do with your issue the interaction between sudo / bash / fakeroot.

If you want to know more, try posting the question to pacman-dev ML.

This thread caught the attention from pacman developers, so there's no more need to post there.

Edited to correct errors

Last edited by Lone_Wolf (2019-12-17 09:48:48)

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clean chroot building not flexible enough ?
Try clean chroot manager by graysky

Allan

Pacman

From: Brisbane, AU

Registered: 2007-06-09

Posts: 11,672

Website

Re: [SOLVED] makepkg via a script run by root

Makepkg uses fakeroot to install things, this probably has to do with the interaction between sudo / bash / fakeroot.

No it does not....   It uses sudo.

Allan

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Trilby

Inspector Parrot

Registered: 2011-11-29

Posts: 30,526

Website

Re: [SOLVED] makepkg via a script run by root

this is better than installing the dependencies with root and then building the packages since I don't need to update it if the dependencies change so I will stick to this for now. Thank you.

I didn't say hardcode the dependencies in the script ... just install them first:

sed -n 's/.*depends = //p' .SRCINFO | pacman -S -

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"UNIX is simple and coherent" - Dennis Ritchie; "GNU's Not Unix" - Richard Stallman