On 26/11/20 08:31, Michael D. Setzer II wrote:
> On 25 Nov 2020 at 11:58, Mayavimmer wrote:
>
>> How do I sync rpm packages with another computer?
>> I have a list of the remote's rpms generated with "rpm -qa".
>> I expect to have to modify a couple of packages in the list due to
>> hardware dependent rpms like xorg.
>> Otherwise it should be a simple matter of downloading the rpms from the
>> edited list and then installing them.
>> Or is there already a script for this?
>
> Rather than a using rpm -qa list, I use
> rpm --qf "%{NAME}.%{ARCH}\n" -qa
>
> I use a script listrpm to make a listing
> #!/usr/bin/bash
> rpm --qf "%{NAME}.%{ARCH}\n" -qa | sort | grep -v gpg-pubkey >
> installed_pkgs"$(date +%F)".txt
>
> Then you can copy the file, and run dnf install with that piped into it.
> Also, do this if I create a machine with a clean install of an OS, and then
> want to add the missing packages. Sometimes get errors on packages that
> might no longer be available, but then just delete those lines from file.
>
> Good Luck.
Ah, good idea to exclude gpg-pubkey.
Why only use NAME and ARCH?
Anyway, summary of interesting points, so far:
* There is probably no ready made script, then write one.
* Let's call the two hosts Master and Clone.
* Should probably install Master-only packages first, then remove
Clone-only ones.
* Clone the Master repo configuration, possibly removing Clone-only repos?
.... But could have problems removing rpms!
.... And may not want redundant repos??
.... Maybe solve this problem by inverting the order like this:
........ 1. Remove Clone-only rpms (ugh, could remove too much!)
........ 2. Zero Clone repo config and replace with Master repo config
........ 3. Install
* Prepare rpmlist for easy parsing, maybe use the tilde char:
.... rpm -qa --qf="%{NAME}-%{EVR}.%{ARCH}\n" # almost same as rpm -qa
.... rpm -qa --qf="%{NAME}~%{EVR}~%{ARCH}\n" # almost same as rpm -qa
* Identify special rpms to exclude from cloning:
.... *-gpg-pubkey-*
.... Some xorg rpm tied to a non default graphics card
.... Other rpms that were installed non from repo in Master
* What to do when downgrading some rpms??
* Ok, here is a first attempt at the install-first-then-remove case:
.... 1. Ensure Clone repo config is the same Master's.
.... 2. Master # rpm -qa --qf="%{NAME}~%{EVR}~%{ARCH}\n"
........ | sort | grep -v gpg-pubkey > master-rpms
........ # Note: still not exactly the same as rpm -qa
.... 3. Clone # rpm -qa --qf="%{NAME}~%{EVR}~%{ARCH}\n"
........ | sort | grep -v gpg-pubkey > clone-rpms
.... 4. Compare the two lists in various ways, using tilde fields.
.... 4. Edit master-rpms to eliminate unwanted rpms.
.... 5. Clone # dnf install $(<edited-master-rpms)
.... # Now do it again to compare
.... 6. Clone # rpm -qa --qf="%{NAME}~%{EVR}~%{ARCH}\n"
........ | sort | grep -v gpg-pubkey > clone-rpms
.... 7. Clone # vimdiff edited-master-rpms clone-rpms
.... 8. Repeat until all differences are sorted out
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