On 25/11/24 22:43, Tim wrote:
I'm just issuing this command to see if there are actually any updates to be applied rather than having dnf upgrade tell me there is nothing to do.On Mon, 2024-11-25 at 09:04 +1100, Stephen Morris wrote:1). Why is it producing the messages "Updating and loading repositories:" and "Repositories loaded." with nothing between them which means that it didn't do anything? This functionality is independent of whether the command is issued under sudo or not.There are probably various things it can do that don't produce any individual progress status. Just a did this, did that, and this... When you fire up dnf, it is going to load data, some of it will be local, some of it may be fetched from the WWW. If you want to look for differences. Purge your dnf cache, do a dnf update (check for updates), watch what happens. Say no and abort. Do another dnf update moments later, and see how it operates from cached data (what progress info you see as it does its thing).
I assumed that when dnf retrieved it's metadata it was updating the standard system locations which a normal user can't update, I didn't know it was caching the data elsewhere. I'll need to do some more checking tomorrow, but I thought I have been in the situation where dnf check-upgrade loaded metadata and then sudo dnf check-upgrade said there was nothing to do.2). When it does list repositories between the two messages, what is it actually doing when the command is not issued under sudo, particularly when issuing the command lists the two updates repositories and then issuing it again immediately after produces nothing between the two messages?If you do a dnf <anything> as a normal user (e.g. look to see if some package exists, or info about it, or if there's any updates, etc), it'll have to get data from the remote server because the info it previously got as a root user isn't available to it. If you then do it as root (whether sudo, or su), it's going to have to get the metadata again, because the data it fetched and cached as an ordinary user isn't available to it. Yes, I've occasionally done a dnf search httpd (for example) as an ordinary user, because I couldn't be bothered typing in a password with sudo. But then, if I do want to download and install something, I'm going to have to do that, anyway. So there's little advantage in it.
regards,
Steve
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