[PVE-User] converting privileged CT to unprivileged

[Adam Weremczuk]

Hi all,

The urandom/random problem solved itself on decompressing:

sudo lzop -d -c vzdump-lxc-100-2019_07_31-16_15_48.tar.lzo | tar xvf - > 
/var/tmp/lxc-100.log
tar: ./var/spool/postfix/dev/urandom: Cannot mknod: Operation not permitted
tar: ./var/spool/postfix/dev/random: Cannot mknod: Operation not permitted
tar: Exiting with failure status due to previous errors

I'm now facing a different problem. 100.conf file has vanished even 
though I can't recall invoking deletion form either GUI or shell:

pct restore 100 
/var/lib/vz/dump/vzdump-lxc-100-2019_07_31-16_15_49.tar.lzo 
-ignore-unpack-errors 1 -unprivileged -force -storage my-zfs-pool
unable to restore CT 100 - ERROR: archive contains no configuration file

I think I can fairly easily recover by making a config copy of a similar 
CT and editing it by hand.

What's the best way of determining the right MAC address to use 
(hwaddr=...)?
I'm pretty sure all ARP caches have flushed this entry by now.
Any chance this info is still stored somewhere?
Create a new dummy CT and use that MAC address?

Thanks,
Adam


On 31/07/19 16:39, Gilberto Nunes wrote:
> You can uncompress the backup for any other directory, delete urandom
> and random and then, compress again the whole directory...
> Then try restore into PVE again.
>
> ---
> Gilberto Nunes Ferreira
>
> (47) 3025-5907
> (47) 99676-7530 - Whatsapp / Telegram
>
> Skype: gilberto.nunes36
>
>
>
>
> Em qua, 31 de jul de 2019 às 12:37, Adam Weremczuk
> <adamw at matrixscience.com> escreveu:
>> Hi all,
>>
>> PVE 5.4.6.
>>
>> My container was created as privileged and runs on zfs pool shared by 2
>> hosts.
>>
>> I've unsuccessfully tried to convert it from GUI:
>> - stopped the container
>> - took a backup
>> - clicked "restore" ("unprivileged" ticked - default)
>>
>> extracting archive
>> '/var/lib/vz/dump/vzdump-lxc-100-2019_07_31-16_15_48.tar.lzo'
>> tar: ./var/spool/postfix/dev/urandom: Cannot mknod: Operation not permitted
>> tar: ./var/spool/postfix/dev/random: Cannot mknod: Operation not permitted
>> Total bytes read: 619950080 (592MiB, 42MiB/s)
>> tar: Exiting with failure status due to previous errors
>> TASK ERROR: unable to restore CT 100 - command 'lxc-usernsexec -m
>> u:0:100000:65536 -m g:0:100000:65536 -- tar xpf - --lzop --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/100/rootfs --skip-old-files --anchored --exclude './dev/*''
>> failed: exit code 2
>>
>> CT 100 completely disappeared from the list!
>>
>> Earlier attempt from shell (105 was the first available ID):
>>
>> pct restore 105
>> /var/lib/vz/dump/vzdump-lxc-100-2019_07_31-16_15_48.tar.lzo
>> -ignore-unpack-errors 1 -unprivileged
>> 400 Parameter verification failed.
>> storage: storage 'local' does not support container directories
>> pct restore <vmid> <ostemplate> [OPTIONS]
>>
>> Any hints?
>>
>> Thanks,
>> Adam
>>
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