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I have set up Ubuntu 21.04 Base image in Termux. When I run apt update, I get the following error. As I was not able to run apt update, I cannot install any packages.

root@localhost:~# apt update
Get:1 http://ports.ubuntu.com/ubuntu-ports hirsute InRelease [269 kB]
Get:2 http://ports.ubuntu.com/ubuntu-ports hirsute-updates InRelease [109 kB]
Get:3 http://ports.ubuntu.com/ubuntu-ports hirsute-backports InRelease [90.7 kB]
Get:4 http://ports.ubuntu.com/ubuntu-ports hirsute-security InRelease [101 kB]
Reading package lists... Done
E: Unable to determine file size for fd 7 - fstat (1: Operation not permitted)
E: The repository 'http://ports.ubuntu.com/ubuntu-ports hirsute InRelease' provides only weak security information.
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.
E: Unable to determine file size for fd 7 - fstat (1: Operation not permitted)
E: The repository 'http://ports.ubuntu.com/ubuntu-ports hirsute-updates InRelease' provides only weak security information.
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.
E: Unable to determine file size for fd 7 - fstat (1: Operation not permitted)
E: The repository 'http://ports.ubuntu.com/ubuntu-ports hirsute-backports InRelease' provides only weak security information.
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.
E: Unable to determine file size for fd 7 - fstat (1: Operation not permitted)
E: The repository 'http://ports.ubuntu.com/ubuntu-ports hirsute-security InRelease' provides only weak security information.
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.

How to fix this? This error is absent in the 20.04.2 base image.

Here is the output for permissions of /tmp.

root@localhost:~# ls -ld /tmp
drwx------ 2 root root 3488 Jul  1 10:54 /tmp

Here is the sources.list (I have not modified it).

root@localhost:~# cat /etc/apt/sources.list
# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.
deb http://ports.ubuntu.com/ubuntu-ports/ hirsute main restricted
# deb-src http://ports.ubuntu.com/ubuntu-ports/ hirsute main restricted

Major bug fix updates produced after the final release of the


distribution.


deb http://ports.ubuntu.com/ubuntu-ports/ hirsute-updates main restricted


deb-src http://ports.ubuntu.com/ubuntu-ports/ hirsute-updates main restricted


N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu


team. Also, please note that software in universe WILL NOT receive any


review or updates from the Ubuntu security team.


deb http://ports.ubuntu.com/ubuntu-ports/ hirsute universe


deb-src http://ports.ubuntu.com/ubuntu-ports/ hirsute universe


deb http://ports.ubuntu.com/ubuntu-ports/ hirsute-updates universe


deb-src http://ports.ubuntu.com/ubuntu-ports/ hirsute-updates universe


N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu


team, and may not be under a free licence. Please satisfy yourself as to


your rights to use the software. Also, please note that software in


multiverse WILL NOT receive any review or updates from the Ubuntu


security team.


deb http://ports.ubuntu.com/ubuntu-ports/ hirsute multiverse


deb-src http://ports.ubuntu.com/ubuntu-ports/ hirsute multiverse


deb http://ports.ubuntu.com/ubuntu-ports/ hirsute-updates multiverse


deb-src http://ports.ubuntu.com/ubuntu-ports/ hirsute-updates multiverse


N.B. software from this repository may not have been tested as


extensively as that contained in the main release, although it includes


newer versions of some applications which may provide useful features.


Also, please note that software in backports WILL NOT receive any review


or updates from the Ubuntu security team.


deb http://ports.ubuntu.com/ubuntu-ports/ hirsute-backports main restricted universe multiverse


deb-src http://ports.ubuntu.com/ubuntu-ports/ hirsute-backports main restricted universe multiverse


Uncomment the following two lines to add software from Canonical's


'partner' repository.


This software is not part of Ubuntu, but is offered by Canonical and the


respective vendors as a service to Ubuntu users.


deb http://archive.canonical.com/ubuntu hirsute partner


deb-src http://archive.canonical.com/ubuntu hirsute partner


deb http://ports.ubuntu.com/ubuntu-ports/ hirsute-security main restricted


deb-src http://ports.ubuntu.com/ubuntu-ports/ hirsute-security main restricted


deb http://ports.ubuntu.com/ubuntu-ports/ hirsute-security universe


deb-src http://ports.ubuntu.com/ubuntu-ports/ hirsute-security universe


deb http://ports.ubuntu.com/ubuntu-ports/ hirsute-security multiverse


deb-src http://ports.ubuntu.com/ubuntu-ports/ hirsute-security multiverse
Archisman Panigrahi
  • 38,814

3 Answers3

0

Correct permissions:

sudo chmod 777 -R /tmp
jasmines
  • 11,311
0

Please, locate the PID for apt update with:

ps ax | grep "apt"

When you know type:

ls -al /proc/PID/fd/

Where PID is the process number you obtained before.

What is the File Descriptor named 7?.

Update 2021-07-05:

May be it is normal.

According to Termux documentation https://wiki.termux.com/wiki/Package_Management :

Apt usage under root is restricted to prevent messing up ownership and SELinux labels on Android /data partition.

We strongly recommend to use a pkg utility instead of apt directly...

Downgrading is not supported. In order to reclaim disk space, we do not keep history of package versions.

Carles Mateo
  • 1,647
  • 7
  • 12
0

[As of 1st dec, 2021]

For me it was due to mounting to /tmp path with ubuntu 20.04. I had to change mount location to /usr/local/bin

Check here and here.

Koder101
  • 101