[systemd-devel] Antw: [EXT] Re: Support for unmerged-usr systems will be REMOVED in the second half of 2023

[Ulrich Windl]

>>> TJ <systemd at iam.tj> schrieb am 05.11.2022 um 10:59 in Nachricht
<b75bb911-c3ba-b386-8892-8010c433065e at iam.tj>:
> Just seen this announcement in the v252 changelog:
> 
> "We intend to remove support for split-usr (/usr mounted separately 
> during boot) ..."

Actually I think this is because systemd is everything but a small boot environment (so wanting the "big /usr").

> 
> How does this align with support for separate /usr/ with dm-verity ?
> 
> For example, this will affect nspawn. See "man 1 systemd-nspawn" and 
> "--root-hash=" where in respect of /usr/ it says:
> 
> "Note that this configures the root hash for the root file system. Disk 
> images may also contain separate file systems for the /usr/ hierarchy, 
> which may be Verity protected as well. The root hash for this protection 
> may be configured via the "user.verity.usrhash" extended file attribute 
> or via a .usrhash file adjacent to the disk image, following the same 
> format and logic as for the root hash for the root file system described 
> here."