Re: Announcing LTSP 19.08

Hi Vinícius;
also all the other LTSP users that don't use dnsmasq should read this.

The new LTSP supports UEFI and relies on the awesome iPXE for menus and 
kernel cmdline parameters. This means that there are at least THREE 
different "filenames" involved now, it's not as simple as "pxelinux.0".

Please read the `ltsp dnsmasq` template file from line 35 and below:
https://github.com/ltsp/ltsp/blob/master/ltsp/server/dnsmasq/ltsp-dnsmasq.conf#L35

This first paragraph checks "if client is UEFI... else...".
So people using isc-dhcp or pfsense or windows, will need to find the 
equivalent syntax for those "ifs".

In the next paragraph (line 45+), the boot filenames are assigned based 
on the previous "ifs".
undionly.kpxe gives ipxe support to BIOS/PXE clients
snponly.efi gives ipxe support to UEFI/PXE clients
ltsp.ipxe is our menu, sent to ipxe clients

So one solution would be to "translate" that dnsmasq.conf file into 
isc-dhcp or windows dhcp server settings. When someone does that, please 
edit the wiki or file an issue or at least send it here to the mailing 
list so that we record it for others.

Another EASIER solution though, is to configure your external DHCP 
server to send IPs etc but NOT the boot filename,
and just run `ltsp dnsmasq` to configure it in proxyDHCP mode,
so that the LTSP server will just send those appropriate filenames (but 
not IP addresses).

If someone wants to do the previous harder solution and needs more 
specific help, he should mention the exact dhcp server/setup he has.

Cheers,
Alkis


On 8/21/19 4:51 AM, Vinícius Ferrão via Ltsp-discuss wrote:
> Alkis, first of all thanks for the amazing job that you are doing with LTSP.
> 
> I have a question regarding the DHCP configuration. I don’t use dnsmasq at all in my environment because I have a full featured DHCP server running on another machine. So in the new LTSP release what is the needed steps to use an standalone DHCP server?
> 
> Thanks,
> 
> Sent from my iPhone
> 
>> On 20 Aug 2019, at 03:26, Alkis Georgopoulos <[email protected]> wrote:
>>
>> Hi Rolf,
>>
>> in about a month, I think the new LTSP will be more stable than the old one, and it will surely be more actively developed and maintained.
>> E.g. I'm hearing about LTSP5 issues with Buster Gnome; I don't see any in the new LTSP.
>> So for new installations people might want to use the new LTSP even now.
>>
>> Both LTSP versions can be installed in parallel. There is no automatic migration or update from LTSP 5 to the new version.
>> To install the new LTSP, one would follow:
>> https://github.com/ltsp/ltsp/wiki/installation
>>
>> To select which LTSP version the clients will use, do the following.
>> To activate LTSP5:
>> rm -f /etc/dnsmasq.d/ltsp-dnsmasq.conf
>> ltsp-config --overwrite dnsmasq
>>
>> To activate the new LTSP:
>> rm -f /etc/dnsmasq.d/ltsp-server-dnsmasq.conf
>> ltsp --overwrite dnsmasq
>>
>> If after some time people see that they don't need the old LTSP, they can remove it using something like:
>> apt purge --auto-remove ldm ldm-server ldm-ubuntu-theme \
>> ltsp-client ltsp-client-core ltsp-server ltsp-server-standalone \
>> ltspfs ltspfsd ltspfsd-core
>>
>> Note that each version uses different directories and lts.conf / ltsp.conf configuration files; so one would have to rewrite ltsp.conf from scratch while looking at the supported ltsp.conf options from the man page, and maybe `cp -a` his chroots, if he's not using chrootless.
>>
>> Regarding ltsp.org, I try to minimize the effort I put in the projects I maintain, and caring about a domain is effort (and a tiny amount of money, especially if one maintains many projects). I could be convinced to map ltsp.org to ltsp.github.io though, if the original LTSP authors or the LTSP users feel it's better.
>>
>> Note that the discussion for the new LTSP continues in github:
>> https://github.com/ltsp/community/issues/4
>>
>> I've already sent updated announcements there about new PPA builds that add support for xorg.conf options, local swap, passwordless logins etc.
>>
>> Regards,
>> Alkis
>>
>>
>>> On 8/20/19 9:37 AM, Rolf-Werner Eilert wrote:
>>> Congratulations, Alkis!
>>> Sounds really interesting. When it's ready, will it update automatically or will an LTSP5 rest to be as it is?
>>> Another question: Why didn't you connect the new site to the old ltsp.org site? (I know, we had this discussion, just forgot the reason why...)
>>> Regards
>>> Rolf
>>>> Am 18.08.19 um 20:22 schrieb Alkis Georgopoulos:
>>>> LTSP 19.08 has been released! Read the full announcement with all the features and changes, and join the discussion here:
>>>> https://github.com/ltsp/community/issues/4
>>>>
>>>> In short, LTSP has been redesigned and rewritten from scratch as part of a GSoC 2019 project. Many thanks to everyone involved for this opportunity to radically improve LTSP!
>>>> https://summerofcode.withgoogle.com/projects/#4558570069164032
>>>>
>>>> LTSP 19.08 is an alpha release that can be installed in parallel with the older LTSP5 version. The plan is to reach stable by the end of September, so I'll actively try to fix any issues you report:
>>>> https://github.com/ltsp/ltsp/wiki/installation
>>>>
>>>> Please also note that all the existing LTSP sites and mailing lists will now only be used for the older LTSP5 and receive minimal maintenance. For the new sites and discussion methods see the new main site:
>>>> https://ltsp.github.io
>>>>
>>>> I.e. please do not reply to this email unless you don't like github; otherwise, all discussions for the new LTSP should happen on the github ltsp community site:
>>>> https://github.com/ltsp/community/issues
>>>> Feel free to open new issues and ask whatever you want there; the plan is to use it instead of a mailing list, so we want to be relaxed, not formal.
>>>> I will continue cross-posting announcements and replying to the sourceforge mailing lists for a while though, until LTSP users get familiarized with the new methods.
>>>>
>>>> Hope you like the new LTSP,
>>>> Alkis Georgopoulos
>>>>
>>
>>


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