How to update an unsupported YunoHost 3.X and Debian 9?

Support
1

Hello there,

Some context

I end up managing a YunoHost server for an non-profit association and it runs with YunoHost version 3.6 and Debian 9.

I found that it is not supported anymore while trying to under to install a new test server on a raspberrry pi with yunohost-stretch-3.4.2-rpi-stable.zip

I get errors while updating yunohost packages from https://forge.yunohost.org. After searching on the forum, I found that it’s not supported anymore from these links:

Questions

How can I manage to get the datas on the last Yunohost and debian version? (I have backups made by the old Yunohost and ssh access)

For now, I believe I will need to install a new server with the last YunoHost version and try to restore a backup on it as the main server cannot be upgraded anymore

Any feedback on this use case if someone had it?

1 Like
2

This seems to be the same case

3

Hello,
@jarod5001 is right, I faced the same problem two weeks ago, and solved it last week thanks to Yunohost Forum.
You just have to edit the file /usr/lib/moulinette/yunohost/data_migrations/0015_migrate_to_buster.py

#  if upgradable_system_packages:
#      raise YunohostError("migration_0015_system_not_fully_up_to_date")

then retry an update

No need to backup you system, Yunohost will do it for you.

4

Uuuuuh, not sure what you mean :thinking:

5

Hi, @Aleks must be right, i didn’t find any trace of backup in the log file of the update.
So you should backup your databefore updating

6

production server

Thanks for the feed back. (I missed it while searching). I will try the given info on the production server if I cannot setup a test server.

test server

Last week, I try to test up a test server an a pi2 and restore the backup made from the production server on it with no luck:

  • yunohost-stretch-3.4.2-rpi-stable.zip (lastest pi images yunohost 3.X available) => failed to restore some apps because some helpers used were added in 3.6

    Warning: ./remove: line 27: ynh_script_progression: command not found
Warning: --file= wasn't deleted because it doesn't exist.

  • yunohost-buster-4.1.7.2-rpi-stable.img.zip => didn’t keep the error message but failed because I try to restore a “stretch backup” on “buster version” (debian package conflicts)

Using pi images was a bad idea… I will switch to “virtual machine” for this and a yunohost 3.6: https://build.yunohost.org/releases_archive/yunohost-stretch-3.6.4.6-amd64-stable.iso

7

Hello,

Thanks for the hint. This file does not exists on the server so I cannot use this trick unfortunately.

root@yuno3-6:~# ls -1 /usr/lib/moulinette/yunohost/data_migrations/
0001_change_cert_group_to_sslcert.py
0001_change_cert_group_to_sslcert.pyc
0002_migrate_to_tsig_sha256.py
0002_migrate_to_tsig_sha256.pyc
0003_migrate_to_stretch.py
0003_migrate_to_stretch.pyc
0004_php5_to_php7_pools.py
0004_php5_to_php7_pools.pyc
0005_postgresql_9p4_to_9p6.py
0005_postgresql_9p4_to_9p6.pyc
0006_sync_admin_and_root_passwords.py
0006_sync_admin_and_root_passwords.pyc
0007_ssh_conf_managed_by_yunohost_step1.py
0007_ssh_conf_managed_by_yunohost_step1.pyc
0008_ssh_conf_managed_by_yunohost_step2.py
0008_ssh_conf_managed_by_yunohost_step2.pyc
0009_decouple_regenconf_from_services.py
0009_decouple_regenconf_from_services.pyc
0010_migrate_to_apps_json.py
0010_migrate_to_apps_json.pyc
__init__.py
__init__.pyc

I end up installing the lastest YunoHost on a new VPS and will migrate all the data manually application by application. I tried restoring a backup instead on the postinstall and I (obviously) got:

root@yuno4-3:~# yunohost backup restore 20220308-081005
Error: This backup archive can not be restored because it comes from a too-old YunoHost version.

Next steps:
PITA will be migrating Nextcloud (and shares) and all the users to recreate

8

Dommage. Maybe it was in the file

0003_migrate_to_stretch.py

(see yunohost/0003_migrate_to_stretch.py at bde3c502acf7a892818c11ad369bb6c5d70218fe · YunoHost/yunohost · GitHub)
on lines 116-120

  if " stretch " not in read_file("/etc/apt/sources.list"):

        self.apt_update()
        apt_list_upgradable = check_output("apt list --upgradable -a")
        if "upgradable" in apt_list_upgradable:
            raise YunohostError("migration_0003_system_not_fully_up_to_date")
9

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