System-wide profiles not writable

[dviererbe]

Similar to the initialization files ~/.bashrc or /etc/bash.bashrc of the bash(1) shell, PowerShell also has initialization files.

For example on my system, I can find them in the following locations:

$PROFILE | Select-Object *              

AllUsersAllHosts       : /snap/powershell/294/opt/powershell/profile.ps1
AllUsersCurrentHost    : /snap/powershell/294/opt/powershell/Microsoft.PowerShell_profile.ps1
CurrentUserAllHosts    : /home/dviererbe/.config/powershell/profile.ps1
CurrentUserCurrentHost : /home/dviererbe/.config/powershell/Microsoft.PowerShell_profile.ps1
Length                 : 67

Due to the nature of how snaps work, /snap/powershell/294/** is a read-only file system. Therefore I am unable to change the system-wide initialization file.

The AllUsersAllHosts and AllUsersCurrentHost profile should be in a user writable location.

[dviererbe]

There seems to be a related upstream issues: PowerShell/PowerShell#20336, PowerShell/PowerShell#25007

[dviererbe]

Okay, so PowerShell uses it's installation base directory for the system-wide profile, see:

Implementation for determining the AllUsers directory:
https://github.com/PowerShell/PowerShell/blob/21f88b50f468ef22fad0e0449ce7daa3f2aa4bd2/src/System.Management.Automation/engine/hostifaces/HostUtilities.cs#L229-L246

Implementation for determining the app base:
https://github.com/PowerShell/PowerShell/blob/21f88b50f468ef22fad0e0449ce7daa3f2aa4bd2/src/System.Management.Automation/engine/Utils.cs#L483-L492