Yes it does.

Thank You,
Maxim Bardin


On Wed, Dec 17, 2025 at 12:22 AM John Humlick (jhumlick) <[email protected]>
wrote:

> Hello Maxim,
>
> Does your offline machine include the new /etc/clamav/certs directory and
> the clamav.crt file?
>
> Best Regards,
> John
>
> Get Outlook for Mac <https://aka.ms/GetOutlookForMac>
> *From: *clamav-users <[email protected]> on behalf of
> Maxim Bardin via clamav-users <[email protected]>
> *Date: *Monday, December 15, 2025 at 5:10 AM
> *To: *[email protected] <[email protected]>
> *Cc: *Maxim Bardin <[email protected]>
> *Subject: *[clamav-users] clamav 1.5.1 on offline machine
>
> Hello,
>
> I've been using Clamav 1.4.3 and earlier on offline machines,
> The method was to install clamav 1.4.3 on online ubuntu machine,
> do freshclam and copy the clamav installation deb file and the updated
> virus database (/usr/local/share/clamav) to the new machine,
> Install the .deb file and copy the db files.
> This would work well on those versions.
>
> Recently I've installed clamav 1.5.1 on a new ubuntu 24.04.3 machine,
> I used the generic .deb file from the official clamav website,
> created the user clamav, the directories and permissions and did freshclam.
> it's working on the online machine,
> However when I try to do the same process on an offline (new) ubuntu
> 24.04.3 machine, it doesn't work.
> I've read the release notes \ blogpost that the new clamav version 1.5.1
> checks for .sig, and I did copy those files as well:
>
> ls /usr/local/share/clamav/
> bytecode-339.cvd.sign  bytecode.cvd  daily-27849.cvd.sign  daily.cvd
>  freshclam.dat  main-62.cvd.sign  main.cvd
> as well as /usr/local/etc/certs/clamav.crt
>
> But I'm still getting an error about:
> Error verifying signature / Invalid digital signature (for the .cvd files
> and sigs) / can't verify database integrity.
> it does find those files on the offline machine, but just won't accept the
> sigs I copied from the online machine.
>
> What is the correct way to update an offline clamav 1.5.1 machine with the
> latest virus database?
> How can I resolve those errors?
>
> Thank You,
> Maxim Bardin
>
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