Linux 5.12 - ID Maping for Unprivileged CTs!


Active Member
Apr 5, 2017

They just released Linux 5.12, which can remap UIDs/GIDs of mountpoints.
This is absolutely awesome feature which would mean that we don't really need to backup/restore or otherwise convert CT's filesystem when switching containers between privileged and unprivileged mode (where root has to be remapped to higher IDs).

Can you please integrate this feature to proxmox? Idealy in way that it would work both on ZFS, LVM and EXT4?


Proxmox Staff Member
Staff member
Feb 1, 2016
since current pve 6.x are by default on kernel 5.4 and the most recent kernel we ship for the foreseeable future is 5.11, it will take a while until that feature lands in a pve kernel. when we sometime ship a kernel with those features, we may want to integrate it

i suggest, opening a feature request on but please have in mind that it may take a while (or maybe we do not want to integrate it at all)


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