No /dev/mapper/pve-data after VE 5.0 installation

[Ralf]

Hello,

I decided to upgrade from Proxmox VE 3.4 to 5 using proxmox-ve_5.0-5ab26bc-5.iso
After fresh installation with default values concerning the HDD (ext4, no changes to swapsize, maxroot, ...) I miss the directory /dev/mapper/pve-data

# df -hT
Filesystem Type Size Used Avail Use% Mounted on
udev devtmpfs 7.8G 0 7.8G 0% /dev
tmpfs tmpfs 1.6G 9.0M 1.6G 1% /run
/dev/mapper/pve-root ext4 94G 1.3G 88G 2% /
tmpfs tmpfs 7.9G 25M 7.8G 1% /dev/shm
tmpfs tmpfs 5.0M 0 5.0M 0% /run/lock
tmpfs tmpfs 7.9G 0 7.9G 0% /sys/fs/cgroup
/dev/fuse fuse 30M 16K 30M 1% /etc/pve
tmpfs tmpfs 1.6G 0 1.6G 0% /run/user/0

The server has one single HDD with 931GB, no RAID. What could have went wrong? Thank you in advance for your help.

 

[udo]

Hi Ralf,
what is the output of following commands:

pvs
vgs
lvs
cat /etc/fstab

Udo

 

[Ralf]

Thank you very much for the hints, Udo. In the meantime I installed Proxmox VE 4.3 (proxmox-ve_4.4-eb2d6f1e-2.iso), but with swapsize=16, maxroot=20, minfree=16 and maxvz=879 (hdsize is 931). The installation gave the same result: no /dev/mapper/pve-data. For that installation the outputs are:

root@server16:~# pvs
  PV         VG   Fmt  Attr PSize   PFree
  /dev/sda3  pve  lvm2 a--  931.26g 16.04g
root@server16:~# vgs
  VG   #PV #LV #SN Attr   VSize   VFree
  pve    1   3   0 wz--n- 931.26g 16.04g
root@server16:~# lvs
  LV   VG   Attr       LSize   Pool Origin Data%  Meta%  Move Log Cpy%Sync Convert
  data pve  twi-a-tz-- 879.00g             0.00   0.42
  root pve  -wi-ao----  20.00g
  swap pve  -wi-ao----  16.00g
root@server16:~# cat /etc/fstab
# <file system> <mount point> <type> <options> <dump> <pass>
/dev/pve/root / ext4 errors=remount-ro 0 1
/dev/pve/swap none swap sw 0 0
proc /proc proc defaults 0 0

Shouldn't there be a line like "/dev/pve/data /var/lib/vz ext4 defaults 0 1" in fstab?

 

[GadgetPig]

"Shouldn't there be a line like "/dev/pve/data /var/lib/vz ext4 defaults 0 1" in fstab?"

I can confirm on one of my PVE 5 servers with ext4 for system disk, the line above does exist in my fstab output

 

[udo]

Shouldn't there be a line like "/dev/pve/data /var/lib/vz ext4 defaults 0 1" in fstab?

Hi Ralf,
no - pve/data is used as lvm-thin.

Take a look at the storage.cfg:

lvmthin: local-lvm
        thinpool data
        vgname pve                                                                                                                                                       
        content images,rootdir

This mean, you vm-disks are real logical volumes, not an file on a mounted filesystem.

Udo

 

[Ralf]

Thank you Udo for that explanation. The reason for asking the question above was, that I am not able to use local-lvm, since the Templates button and the Upload button are inactive (grey), as shown in the attached picture.

So I better should have asked for a hint how to upload my VM backups to the server and restore them. What are recommended values for maxroot (=size of 'local') and maxvz (=size of local-vm) to be set up during installation for that 1TB HDD?
Thank you. Ralf

 

[zima]

create volume:
lvcreate -V100G -T pve/data --name XXX
mkfs.ext4 /dev/pve/XXX
mount it ( and add it to fstab ) under dir i.e. /templates
then add it in storage as type directory and select templates,iso and backup