From: Alwin Antreich via pve-user <pve-user@lists.proxmox.com>
To: "Proxmox VE user list" <pve-user@lists.proxmox.com>
Cc: Alwin Antreich <alwin@antreich.com>, pve-user@lists.proxmox.com
Subject: Re: [PVE-User] ZFS Upgrade...
Date: Wed, 01 Oct 2025 13:45:56 +0000 [thread overview]
Message-ID: <mailman.552.1759326365.390.pve-user@lists.proxmox.com> (raw)
In-Reply-To: <mjdtql-h1n2.ln1@leia.lilliput.linux.it>
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From: "Alwin Antreich" <alwin@antreich.com>
To: "Proxmox VE user list" <pve-user@lists.proxmox.com>
Cc: pve-user@lists.proxmox.com
Subject: Re: [PVE-User] ZFS Upgrade...
Date: Wed, 01 Oct 2025 13:45:56 +0000
Message-ID: <bc9e88a878a161c35ebb36137a21765c658ad001@antreich.com>
Hi Marco,
September 30, 2025 at 6:37 PM, "Marco Gaiarin" <[gaio@lilliput.linux.it](mailto:gaio@lilliput.linux.it?to=%22Marco%20Gaiarin%22%20%3Cgaio%40lilliput.linux.it%3E)\> wrote:
> Mandi! Alwin Antreich via pve-user
> In chel di\` si favelave...
>
>
> > > So, implicitly you confirm that it is GRUB that have some incompatibilities,
> > > not GRUB in legacy mode... I've understood well?
> >
> >
> > To my understanding, yes. Historically grub didn't (or still doesn't) support all features of a zfs pool on root. That's why the installer selects grub or systemd-boot \[0\] depending on system.
>
>
> So, practically:
>
> 1) if i use systemd-boot i'm safe and i can safely upgrade boot zpool
>
> 2) if i use GRUB, both in:
> 2a) legacy
> or
> 2b) UEFI
> mode, i'm in danger and if i upgrade boot pool, system get unbootable.
>
>
> Clearly, if i have a system taht boot in UEFI GRUB, i can upgrade bootloader
> to systemd-boot (How?).
See here. https://pve.proxmox.com/wiki/ZFS:_Switch_Legacy-Boot_to_Proxmox_Boot_Tool
Cheers,
Alwin
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prev parent reply other threads:[~2025-10-01 13:46 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-16 13:59 Marco Gaiarin
2025-09-22 14:21 ` Marco Gaiarin
2025-09-23 12:52 ` Alwin Antreich via pve-user
[not found] ` <58420306b884238ed47ae0a5b2c69913bd131ebb@antreich.com>
2025-09-24 16:18 ` Marco Gaiarin
2025-09-27 15:32 ` Alwin Antreich via pve-user
2025-09-30 16:37 ` Marco Gaiarin
2025-10-01 13:45 ` Alwin Antreich via pve-user [this message]
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