environment - file is read-only

Asked Aug 22 '18 at 12:14

Active Aug 28 '18 at 09:57

Viewed 991 times

I'm trying to get Ubuntu Core 16 to use a proxy to talk to the snap store.

When attempting to edit /etc/environment, I'm unable to save my change, due to it being read-only.

(The file permissions are 644, the problem seems to be /dev/loop0 on / type squashfs (ro,relatime))

(Editing as root, from a sudo -i session)

core snap version:

Name              Version          Rev   Developer  Notes
core              16-2             1577  canonical  -

Initial snap version:

$ snap version
snap    2.23.6
snapd   2.23.6
series  16
kernel  4.4.0-77-generic

(snapd >= 2.28 supports setting proxy settings with snap set core proxy.http (insert relevant protocol there))

edited Aug 28 '18 at 09:57

asked Aug 22 '18 at 12:14

Gert van den Berg

(Other things tried include finding the file on /writable, but that also fails...) (A device on a newer core snap version seems not to have the issue, but I'm trying to get the update to that version working over a proxy) – Gert van den Berg Aug 22 '18 at 12:18
The problem is gone once it is updated, but my goal is to document the process of updating over a proxy. – Gert van den Berg Aug 22 '18 at 12:44
Are you trying to edit it with a normal user? in /etc the file arre owned by root. 6 is only for root user other is 4 (that mean only read) – Pascal Fares Aug 28 '18 at 08:26
ls -l /etc/environment -rw-r--r-- 1 root root 96 avril 12 2017 /etc/environment – Pascal Fares Aug 28 '18 at 08:26
@PascalFares: "(Editing as root, from a sudo -i session)" – Gert van den Berg Aug 28 '18 at 09:49
(It is Ubuntu Core, which has a read-only squashfs root filesystem, with all kinds of tricks (bind mounts, symlinks) to get some files writable...) – Gert van den Berg Aug 28 '18 at 09:56

0 Answers0