Hey,
So i had to reinstall a fresh 6.4 after a failed 7. Now i can recover some LXC which dont have any ID mapping. But others had read/write access to the host because i mapped u1000 g1000 to be the same in host AND lxc.
I forgot how i did it but i used this as guidance:
https://pve.proxmox.com/wiki/Unprivileged_LXC_containers
* On the host i had a
* On multiple LXC i had made an
This way i was able to read/write on the host from within the LXC.
i already made the host side, but recovering a lxc gives me:
the LXC config:
On the newly installed host i have:
and at the moment i have this in /etc/subgid:
and /etc/subuid:
That last part. subgid and subuid is something i dont dare touch yet. But it might be the clue though.
It took me ages to get it right, and now its broken again. Im so shot.......
How can i restore these backups?
So i had to reinstall a fresh 6.4 after a failed 7. Now i can recover some LXC which dont have any ID mapping. But others had read/write access to the host because i mapped u1000 g1000 to be the same in host AND lxc.
I forgot how i did it but i used this as guidance:
https://pve.proxmox.com/wiki/Unprivileged_LXC_containers
* On the host i had a
Harro:Harro on 1000:1000 (myname)* On multiple LXC i had made an
Harro:Harro on 1000:1000 as well.This way i was able to read/write on the host from within the LXC.
i already made the host side, but recovering a lxc gives me:
Code:
recovering backed-up configuration from 'LibreElecBackup:backup/vzdump-lxc-201-2021_07_15-05_06_32.tar.zst'
restoring 'LibreElecBackup:backup/vzdump-lxc-201-2021_07_15-05_06_32.tar.zst' now..
extracting archive '/mnt/pve/LibreElecBackup/dump/vzdump-lxc-201-2021_07_15-05_06_32.tar.zst'
lxc 20210715182225.213 ERROR conf - conf.c:lxc_map_ids:2878 - newuidmap failed to write mapping "newuidmap: uid range [1000-1001) -> [1000-1001) not allowed": newuidmap 70225 0 100000 1000 1000 1000 1 1001 101001 64530 65534 165534 1
Failed to write id mapping for child process
lxc 20210715182225.213 ERROR utils - utils.c:lxc_setgroups:1469 - Operation not permitted - Failed to setgroups()
lxc 20210715182225.213 ERROR utils - utils.c:lxc_switch_uid_gid:1447 - Invalid argument - Failed to switch to gid 0
TASK ERROR: unable to restore CT 103 - command 'lxc-usernsexec -m u:0:100000:1000 -m g:0:100000:1000 -m u:1000:1000:1 -m g:1000:1000:1 -m u:1001:101001:64530 -m g:1001:101001:64530 -m u:65534:165534:1 -m g:65534:165534:1 -- tar xpf - --zstd --totals --one-file-system -p --sparse --numeric-owner --acls --xattrs '--xattrs-include=user.*' '--xattrs-include=security.capability' '--warning=no-file-ignored' '--warning=no-xattr-write' -C /var/lib/lxc/103/rootfs --skip-old-files --anchored --exclude './dev/*'' failed: exit code 1the LXC config:
Code:
#http://sabnzbd.local%3A8080/
#
#192.168.1.7
arch: amd64
cores: 8
hostname: SABnzbd
memory: 2048
mp0: /TANK/shares/games/,mp=/mnt/games
mp1: /TANK/shares/downloads/,mp=/mnt/downloads
net0: name=eth0,bridge=vmbr0,firewall=1,hwaddr=D6:FF:64:B0:38:B6,ip=dhcp,type=veth
onboot: 1
ostype: ubuntu
rootfs: Containers:subvol-201-disk-0,size=8G
swap: 512
unprivileged: 1
lxc.idmap: u 0 100000 1000
lxc.idmap: g 0 100000 1000
lxc.idmap: u 1000 1000 1
lxc.idmap: g 1000 1000 1
lxc.idmap: u 1001 101001 64530
lxc.idmap: g 1001 101001 64530
lxc.idmap: u 65534 165534 1
lxc.idmap: g 65534 165534 1On the newly installed host i have:
Code:
root@pve:/etc# id Harro
uid=1000(Harro) gid=1000(Harro) groups=1000(Harro)and at the moment i have this in /etc/subgid:
Code:
root:100000:65536
Harro:165536:65536and /etc/subuid:
Code:
root:100000:65536
Harro:165536:65536That last part. subgid and subuid is something i dont dare touch yet. But it might be the clue though.
It took me ages to get it right, and now its broken again. Im so shot.......
How can i restore these backups?
Last edited:
