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Date: Tue, 25 Aug 2020 17:12:08 +0200 (CEST)
From: Dietmar Maurer <dietmar@proxmox.com>
To: Fabrizio Cuseo <f.cuseo@panservice.it>,
 Proxmox Backup Server development discussion <pbs-devel@lists.proxmox.com>
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Subject: Re: [pbs-devel] Problem with PBS and old CentOS 4.9 vm
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> I have a problem with a 4.9 centOS vm. If i restore after backup, during the initial FSCK there are a lot of errors and filesystem problems.
> 
> I have tried to:
> - change disk from virtio to IDE
> - backup with vm off 
> - make fsck, stop the vm, backup, and restore 
> 
> If i backup the vm powered off, when I restore it, no fsck is prompted at boot, but if I reset (without any activity) the vm, again the filesystem is full of errors.
> If I reset the original VM, no problem during fsck at boot.
> 
> If i fix the restored vm, I backup it again (powered on or off), same problem. 
> 
> So seems the the problem is making and restoring backup.
> 
> No problem with a centOS 6.X (i am testing other OS versions).
> 
> Some idea ? 

file system on centos 4.9 is buggy (old xfs version)?