[SOLVED] PVE upgrade from 5 to 6

[Anddevvsss]

Hello!

I have legacy Debian 9 with Proxmox5 and I'm trying to upgrade it to Buster and Proxmox6. I'm following this document https://pve.proxmox.com/wiki/Upgrade_from_5.x_to_6.0 but every time I got:

W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: http://download.proxmox.com/debian/pve buster InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 7BF2812E8A6E88E0
W: Failed to fetch http://download.proxmox.com/debian/pve/dists/buster/InRelease  The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 7BF2812E8A6E88E0
W: Some index files failed to download. They have been ignored, or old ones used instead.

when apt update executed.

I have downloaded proxmox-ve-release-6.x.gpg key to /etc/apt/trusted.gpg.d/ but it didn't help. There is the result of sha256sum on this file:

2781fd6fdcc63a95576bdbf3b95bbf21fac3ea330ad6a4311d4dfec4016ac02e  proxmox-ve-release-6.x.gpg

I'm using no-subscription apt repository. This is the content of the file /etc/apt/sources.list.d/pve-no-subscription.list :

deb http://download.proxmox.com/debian/pve buster pve-no-subscription

Snippet of apt-key list:

/etc/apt/trusted.gpg.d/proxmox-ve-release-5.x.gpg
-------------------------------------------------
pub   rsa4096 2016-08-29 [SC] [expires: 2026-08-27]
      359E 9596 5E2C 3D64 3159  CD30 0D9A 1950 E2EF 0603
uid           [ unknown] Proxmox Virtual Environment 5.x Release Key <proxmox-release@proxmox.com>

/etc/apt/trusted.gpg.d/proxmox-ve-release-6.x.gpg
-------------------------------------------------
pub   rsa4096 2018-11-19 [SC] [expires: 2028-11-16]
      3534 79F8 3781 D7F8 ED5F  5AC5 7BF2 812E 8A6E 88E0
uid           [ unknown] Proxmox Virtual Environment 6.x Release Key <proxmox-release@proxmox.com>

Did I miss something? Could you please help me to solve this issue?

 

[fireon]

Normaly an

apt-key adv --recv-keys --keyserver keyserver.ubuntu.com 7BF2812E8A6E88E0

should solve your problem. So after an "apt-get update" the error should be gone.

But really, with such an old version, a new installation with Proxmox 8 and restoring backups would be the faster and cleaner way.

 

[Anddevvsss]

Normaly an

apt-key adv --recv-keys --keyserver keyserver.ubuntu.com 7BF2812E8A6E88E0

should solve your problem. So after an "apt-get update" the error should be gone.

But really, with such an old version, a new installation with Proxmox 8 and restoring backups would be the faster and cleaner way.

Hi,

thanks for the suggestion! Unfortunately it is not possible to use a fresh Proxmox 8 installation. I have a multiple legacy nodes and I need to update them one by one.

I have executed
apt-key adv --recv-keys --keyserver keyserver.ubuntu.com 7BF2812E8A6E88E0

but I got:

Executing: /tmp/apt-key-gpghome.rl1FNxoAHM/gpg.1.sh --recv-keys --keyserver keyserver.ubuntu.com 7BF2812E8A6E88E0
gpg: [don't know]: invalid packet (ctb=02)
gpg: keydb_get_keyblock failed: Value not found
gpg: [don't know]: invalid packet (ctb=02)
gpg: /tmp/apt-key-gpghome.rl1FNxoAHM/pubring.gpg: copy to '/tmp/apt-key-gpghome.rl1FNxoAHM/pubring.gpg.tmp' failed: Invalid packet
gpg: error writing keyring '/tmp/apt-key-gpghome.rl1FNxoAHM/pubring.gpg': Invalid packet
gpg: error reading '[stream]': Invalid packet

 

[fireon]

I tested this here with an Proxmox VE 5.x, the sources.list must be changed because Debian Stretch is archived.
https://www.debian.org/distrib/archive

deb http://archive.debian.org/debian stretch main contrib
deb http://archive.debian.org/debian stretch-proposed-updates main contrib
deb http://archive.debian.org/debian-security stretch/updates main
deb http://download.proxmox.com/debian/pve stretch pve-no-subscription

apt update

If you get an apt key error, you must install dirmngr first:

apt install dirmngr -y

After you can add the apt key:

apt-key adv --recv-keys --keyserver keyserver.ubuntu.com 0E98404D386FA1D9

After upgrade your current 5.x PVE, and everything works fine you can beginn to Upgrade to PVE 6.x with this sources.list:

deb http://archive.debian.org/debian buster main contrib
deb http://archive.debian.org/debian buster-updates main contrib
deb http://security.debian.org/debian-security buster/updates main contrib
deb http://download.proxmox.com/debian/pve buster pve-no-subscription

 

[Anddevvsss]

I tested this here with an Proxmox VE 5.x, the sources.list must be changed because Debian Stretch is archived.
https://www.debian.org/distrib/archive

deb http://archive.debian.org/debian stretch main contrib
deb http://archive.debian.org/debian stretch-proposed-updates main contrib
deb http://archive.debian.org/debian-security stretch/updates main
deb http://download.proxmox.com/debian/pve stretch pve-no-subscription

apt update

If you get an apt key error, you must install dirmngr first:

apt install dirmngr -y

After you can add the apt key:

apt-key adv --recv-keys --keyserver keyserver.ubuntu.com 0E98404D386FA1D9

After upgrade your current 5.x PVE, and everything works fine you can beginn to Upgrade to PVE 6.x with this sources.list:

deb http://archive.debian.org/debian buster main contrib
deb http://archive.debian.org/debian buster-updates main contrib
deb http://security.debian.org/debian-security buster/updates main contrib
deb http://download.proxmox.com/debian/pve buster pve-no-subscription

thanks Fireon! Solved, apt update works and I'm able to perform apt dist-upgrade now

 

[fireon]

Perfect . If your issue is resolved, please mark your thread as resolved. You can do this by editing your first post and setting the flag.