Hi, I have a very old Ceph cluster running the old dumpling version 0.67.1. One of the three monitors suffered a hardware failure and I am setting up a new server to replace the third monitor running Ubuntu 22.04 LTS (all the other monitors are using the old Ubuntu 12.04 LTS). I used ceph-deploy to deploy the cluster initially, and I can't use it since it's a very old version of ceph-deploy -- having issues with apt-key being deprecated and since ceph-deploy is no longer maintained, I can't upgrade it. And even if I can, I am not too sure if it works since the dumpling version is no longer in Ceph's official repository. So I tried to install it manually by cloning it from git: git clone -b dumpling https://github.com/ceph/ceph.git But when I tried to run "git submodule update --init" or "./autogen.sh" as per the README file, I am encountering this error: ==== root@ceph-mon-04:~/ceph-dumpling/ceph# git submodule update --init Submodule 'ceph-object-corpus' (git://ceph.com/git/ceph-object-corpus.git) registered for path 'ceph-object-corpus' Submodule 'src/libs3' (git://github.com/ceph/libs3.git) registered for path 'src/libs3' Cloning into '/root/ceph-dumpling/ceph/ceph-object-corpus'... fatal: repository 'https://ceph.com/git/ceph-object-corpus.git/' not found fatal: clone of 'git://ceph.com/git/ceph-object-corpus.git' into submodule path '/root/ceph-dumpling/ceph/ceph-object-corpus' failed Failed to clone 'ceph-object-corpus'. Retry scheduled Cloning into '/root/ceph-dumpling/ceph/src/libs3'... Cloning into '/root/ceph-dumpling/ceph/ceph-object-corpus'... fatal: repository 'https://ceph.com/git/ceph-object-corpus.git/' not found fatal: clone of 'git://ceph.com/git/ceph-object-corpus.git' into submodule path '/root/ceph-dumpling/ceph/ceph-object-corpus' failed Failed to clone 'ceph-object-corpus' a second time, aborting root@ceph-mon-04:~/ceph-dumpling/ceph# git submodule update --init --recursive Cloning into '/root/ceph-dumpling/ceph/ceph-object-corpus'... fatal: repository 'https://ceph.com/git/ceph-object-corpus.git/' not found fatal: clone of 'git://ceph.com/git/ceph-object-corpus.git' into submodule path '/root/ceph-dumpling/ceph/ceph-object-corpus' failed Failed to clone 'ceph-object-corpus'. Retry scheduled Cloning into '/root/ceph-dumpling/ceph/ceph-object-corpus'... fatal: repository 'https://ceph.com/git/ceph-object-corpus.git/' not found fatal: clone of 'git://ceph.com/git/ceph-object-corpus.git' into submodule path '/root/ceph-dumpling/ceph/ceph-object-corpus' failed Failed to clone 'ceph-object-corpus' a second time, aborting root@ceph-mon-04:~/ceph-dumpling/ceph# ==== It seems that the repositories required for the submodules are no longer there. Anyone can advise me on the correct direction on how can I install the dumpling version of Ceph for me to add a new monitor? At the moment only 2 monitors out of 3 are up and I am worried that the cluster will be down if I lose another monitor. $ ceph status cluster 1660b11f-1074-4f5d-aa7c-64b479397a2f health HEALTH_WARN 1 mons down, quorum 0,1 ceph-mon-01,ceph-mon-02 What approach I should take: - Continue trying the manual installation/compiling route? - Continue trying the ceph-deploy route (by fixing the apt-key deprecation issue)? - Try to install the same old OS (Ubuntu 12.04 LTS) on the new server (not too sure if I still have the ISO) and see if it works? - Try to upgrade the current cluster and then add the monitor later after upgrade? (is it risky to upgrade with HEALTH_WARN status)? Any advice is greatly appreciated. Best regards, -ip-