[caasp-beta] transactional updates

Bo Jin bo.jin at suse.com
Fri Mar 31 10:53:29 MDT 2017


Could I get the slides? Great video.


On 03/31/2017 03:38 PM, Thorsten Kukuk wrote:
> On Fri, Mar 31, Bo Jin wrote:
>
>> Hi,
>> I still want to better understand "transaction updates".
>>
>> From the available docu so far I know the the transactional-update script is
>> looking if any new updates are available, if yes then a read only snapshot
>> of btrfs root fs will be created. Then the script will execute the updates.
>> After updates the ro snapshot will be marked as active/default and machine
>> needs to be rebooted.
>>
>> My question is where does the rpm goto during updates? Into the ro snapshot?
>
> Yes, except that it is not ro. After creating the snapshot, it will be
> switched to read-write, than zypper up is called inside of the snapshot,
> and afterwards it is switched back to read-only.
>
> There is a generic talk from me from FOSDEM this year:
> https://fosdem.org/2017/schedule/event/transactional_update_with_btrfs/
>
> The for your interesting part starts at about 9:50.
>
>   Thorsten
>

-- 
Bo Jin
Sales Engineer
SUSE Linux
Mobile: +41792586688
bo.jin at suse.com
www.suse.com


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