Ubuntu
snapd package

Search path not updated after snap install

Bug #1988131 reported by Heinrich Schuchardt
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
snapd (Ubuntu)
Invalid
Undecided
Unassigned

Bug Description

Search paths are for snaps are not in effect after snap installation. Observed on
http://cdimage.ubuntu.com/ubuntu-server/focal/daily-preinstalled/20220829.1/focal-preinstalled-server-riscv64+unmatched.img.xz and
http://cdimage.ubuntu.com/ubuntu-server/focal/daily-preinstalled/20220829.1/focal-preinstalled-server-riscv64+unleashed.img.xz

$ sudo apt-get install hello
$ hello
Hello, world!
$ sudo snap install hello
hello 2.12 from Canonical✓ installed
$ hello
Hello, world!
$ which hello
/usr/bin/hello
$ /snap/bin/hello
Hello, world!
$ sudo apt-get purge hello
$ hello
-bash: /usr/bin/hello: No such file or directory

After logout and login

$ hello
Hello, world!
$ snap --version
snap 2.56-dirty
snapd 2.56-dirty
series 16
ubuntu 20.04
kernel 5.15.0-1018-generic

My expectation is that after uninstall /usr/bin/hello /snap/bin/hello is in the search path.

Tags: iso-testing
Revision history for this message
Ubuntu QA Website (ubuntuqa) wrote :

This bug has been reported on the Ubuntu ISO testing tracker.

A list of all reports related to this bug can be found here:
https://iso.qa.ubuntu.com/qatracker/reports/bugs/1988131

tags: added: iso-testing
Revision history for this message
Michael Hudson-Doyle (mwhudson) wrote :

This is just how bash works https://unix.stackexchange.com/questions/5609/how-do-i-clear-bashs-cache-of-paths-to-executables (I do wonder if this optimization makes any sense in 2022 but well).

Revision history for this message
Heinrich Schuchardt (xypron) wrote :

Could it be that because the snapd package is not preinstalled on Focal /snap/bin is missing in the $PATH until next login? Then the solution would be to add snapd to the distribution image like we did on Jammy.

Changed in snapd (Ubuntu):
status: New → Invalid
Revision history for this message
Heinrich Schuchardt (xypron) wrote :

Thanks for pointing at the hashing in bash. Closing as invalid.

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