Re: freebsd-update

Doug Hardie <bc979@lafn.org> writes:

>> On Dec 11, 2023, at 08:52, Carl Johnson <carlj@peak.org> wrote:
>> 
>> Doug Hardie <bc979@lafn.org> writes:
>> 
>>>> On Dec 11, 2023, at 01:24, Polytropon <freebsd@edvax.de> wrote:
>>>> 
>>>> On Sun, 10 Dec 2023 18:41:11 -0800, Doug Hardie wrote:
>>>>> I have upgraded using freebsd-update a number of time on one system.
>>>>> There are two files I would like to retrieve from the previous
>>>>> incarnation.  I don't want to revert them, just put them somewhere
>>>>> where I can retrieve their contents.  Is this possible? 
>>>>> /var/db/freebsd-update is intact from several years and updates ago.
>>>> 
>>>> There should be a backup of every file freebsd-update has modified.
>>>> It is located in /var/tmp, if I remember correctly.
>>>> 
>>>> What files in particular are you searching for?
>>> 
>>> I didn't find anything in /var/tmp except for the vi recovery files.  Looking for sshd_config and ssh_config.
>>> 
>>> -- Doug
>> 
>> It is in /var/db/freebsd-update, not /var/tmp.
>
> I found /var/db/freebsd-update/files which has files from 2017 and on
> till the last update.  However, the names are encoded in some way -
> e.g.,
>
> 092a2690192245310b6c7db95cde1ace858b83380538e7db34473a1d22451fc1.gz
>
> I probably need to clean up that directory, but how do I find the file name from the above?

I haven't actually done anything with that, but look in the install.*
directories.  The *-rollback symbolic link will point to the latest of
those.  Each of those directories contains a INDEX-NEW and INDEX-OLD 
file.  Those files contain a list of file names and information about
the files, including the first part of that string (before the .gz) that
points to the files in the files/ subdirectory.  I imagine
freebsd-update uses that information to rollback before a change, but I
don't know of anything else that can use that information.

I don't know anything more than that, but hopefully you can figure out
what you need from that.
-- 
Carl Johnson		carlj@peak.org