can't restore my lvms

H

Hurrah

Member
Jun 18, 2022
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Sorry for my poor English.

When I want to extend my lvm-thin, I use this code maked a img from lvm-root:
Bash: 
dd if=/dev/zero of=~/temp.img bs=1024M count=16

fdisk ~/temp.img

losetup -Pf --show ~/temp.img

pvcreate /dev/loop0p1

lvextend -l +100%FREE -r pve/root /dev/loop0p1 --force

## I forgot what I wrote then, but it almost like this.


when I finish the tasks , I removed the file temp.img.
then reboot my pve, my vms are all inactive,

Now I can't backup my vms, and can't start them.

How can I resolve this ?

Thanks for any help.

Below is my pvs/lvs information:
Bash: 
root@pve:~# vgs
  Couldn't find device with uuid ULyj0T-yyH8-bm9C-U87I-7Bay-wtVP-GT8lpt.
  VG  #PV #LV #SN Attr   VSize   VFree
  pve   2   6   0 wz-pn- 127.28g    0
root@pve:~# pvs
  Couldn't find device with uuid ULyj0T-yyH8-bm9C-U87I-7Bay-wtVP-GT8lpt.
  PV         VG  Fmt  Attr PSize    PFree
  /dev/sda3  pve lvm2 a--  <111.29g    0
  [unknown]  pve lvm2 a-m   <16.00g    0
root@pve:~# lvs
  Couldn't find device with uuid ULyj0T-yyH8-bm9C-U87I-7Bay-wtVP-GT8lpt.
  LV            VG  Attr       LSize  Pool Origin Data%  Meta%  Move Log Cpy%Sync Convert
  data          pve twi---tzp- 90.53g                                                   
  root          pve -wi-ao---- 27.75g                                                   
  swap          pve -wi-ao----  7.00g                                                   
  vm-101-disk-0 pve Vwi---tzp- 52.00m data                                               
  vm-102-disk-0 pve Vwi---tzp- 52.00g data                                               
  vm-103-disk-0 pve Vwi---tzp- 32.00g data                                               
root@pve:~# lvdisplay
  Couldn't find device with uuid ULyj0T-yyH8-bm9C-U87I-7Bay-wtVP-GT8lpt.
  --- Logical volume ---
  LV Path                /dev/pve/swap
  LV Name                swap
  VG Name                pve
  LV UUID                lbF2k4-BUsw-19rA-6T3g-zq3E-EWtC-Zxvedc
  LV Write Access        read/write
  LV Creation host, time proxmox, 2021-05-15 22:42:40 +0800
  LV Status              available
  # open                 2
  LV Size                7.00 GiB
  Current LE             1792
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           253:0
  
  --- Logical volume ---
  LV Path                /dev/pve/root
  LV Name                root
  VG Name                pve
  LV UUID                KLVRGK-e0a9-1aXj-RGlw-00iv-dcvW-jM5I3w
  LV Write Access        read/write
  LV Creation host, time proxmox, 2021-05-15 22:42:40 +0800
  LV Status              available
  # open                 1
  LV Size                27.75 GiB
  Current LE             7104
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           253:1
  
  --- Logical volume ---
  LV Name                data
  VG Name                pve
  LV UUID                D49kt8-FwgB-MxGm-UvnN-GokP-ch5Z-H2vKn4
  LV Write Access        read/write
  LV Creation host, time proxmox, 2021-05-15 22:42:40 +0800
  LV Pool metadata       data_tmeta
  LV Pool data           data_tdata
  LV Status              NOT available
  LV Size                90.53 GiB
  Current LE             23176
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  
  --- Logical volume ---
  LV Path                /dev/pve/vm-102-disk-0
  LV Name                vm-102-disk-0
  VG Name                pve
  LV UUID                KsabaN-vBsv-hPQ5-3aSn-htdX-TPXo-FbfQDF
  LV Write Access        read/write
  LV Creation host, time pve, 2021-06-02 00:21:26 +0800
  LV Pool name           data
  LV Status              NOT available
  LV Size                52.00 GiB
  Current LE             13312
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  
  --- Logical volume ---
  LV Path                /dev/pve/vm-101-disk-0
  LV Name                vm-101-disk-0
  VG Name                pve
  LV UUID                OqHfHA-IdCq-8ZRU-Xke5-fdl8-pRpo-jWPTNg
  LV Write Access        read/write
  LV Creation host, time pve, 2021-06-06 14:43:17 +0800
  LV Pool name           data
  LV Status              NOT available
  LV Size                52.00 MiB
  Current LE             13
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  
  --- Logical volume ---
  LV Path                /dev/pve/vm-103-disk-0
  LV Name                vm-103-disk-0
  VG Name                pve
  LV UUID                ucspbe-kALY-kmlB-OesG-IWFS-0SDN-eTFxhJ
  LV Write Access        read/write
  LV Creation host, time pve, 2021-06-12 13:29:46 +0800
  LV Pool name           data
  LV Status              NOT available
  LV Size                32.00 GiB
  Current LE             8192
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  
root@pve:~#
 
Last edited:
Here is my vg file content from /etc/lvm/archive/
Bash: 
# Generated by LVM2 version 2.03.02(2) (2018-12-18): Wed Jun 15 00:08:51 2022

contents = "Text Format Volume Group"
version = 1

description = "Created *before* executing 'vgreduce --removemissing pve --force'"

creation_host = "pve"    # Linux pve 5.4.106-1-pve #1 SMP PVE 5.4.106-1 (Fri, 19 Mar 2021 11:08:47 +0100) x86_64
creation_time = 1655222931    # Wed Jun 15 00:08:51 2022

pve {
    id = "qVo4Wc-lmlH-VL13-6CTD-HsG8-9eIY-crjMCW"
    seqno = 69
    format = "lvm2"            # informational
    status = ["RESIZEABLE", "READ", "WRITE"]
    flags = []
    extent_size = 8192        # 4 Megabytes
    max_lv = 0
    max_pv = 0
    metadata_copies = 0

    physical_volumes {

        pv0 {
            id = "eHJOqA-K3vX-8Ncd-C9Tq-Bh0W-Dn20-ov5YHl"
            device = "/dev/sda3"    # Hint only

            status = ["ALLOCATABLE"]
            flags = []
            dev_size = 233390991    # 111.289 Gigabytes
            pe_start = 2048
            pe_count = 28489    # 111.285 Gigabytes
        }

        pv1 {
            id = "ULyj0T-yyH8-bm9C-U87I-7Bay-wtVP-GT8lpt"
            device = "[unknown]"    # Hint only

            status = ["ALLOCATABLE"]
            flags = ["MISSING"]
            dev_size = 33552351    # 15.999 Gigabytes
            pe_start = 2048
            pe_count = 4095    # 15.9961 Gigabytes
        }
    }

    logical_volumes {

        swap {
            id = "lbF2k4-BUsw-19rA-6T3g-zq3E-EWtC-Zxvedc"
            status = ["READ", "WRITE", "VISIBLE"]
            flags = []
            creation_time = 1621089760    # 2021-05-15 22:42:40 +0800
            creation_host = "proxmox"
            segment_count = 1

            segment1 {
                start_extent = 0
                extent_count = 1792    # 7 Gigabytes

                type = "striped"
                stripe_count = 1    # linear

                stripes = [
                    "pv0", 0
                ]
            }
        }

        root {
            id = "KLVRGK-e0a9-1aXj-RGlw-00iv-dcvW-jM5I3w"
            status = ["READ", "WRITE", "VISIBLE"]
            flags = []
            creation_time = 1621089760    # 2021-05-15 22:42:40 +0800
            creation_host = "proxmox"
            segment_count = 1

            segment1 {
                start_extent = 0
                extent_count = 7104    # 27.75 Gigabytes

                type = "striped"
                stripe_count = 1    # linear

                stripes = [
                    "pv0", 1792
                ]
            }
        }

        data {
            id = "D49kt8-FwgB-MxGm-UvnN-GokP-ch5Z-H2vKn4"
            status = ["READ", "WRITE", "VISIBLE"]
            flags = []
            creation_time = 1621089760    # 2021-05-15 22:42:40 +0800
            creation_host = "proxmox"
            segment_count = 1

            segment1 {
                start_extent = 0
                extent_count = 23176    # 90.5312 Gigabytes

                type = "thin-pool"
                metadata = "data_tmeta"
                pool = "data_tdata"
                transaction_id = 25
                chunk_size = 128    # 64 Kilobytes
                discards = "passdown"
                zero_new_blocks = 1

                message1 {
                    delete = 1
                }
            }
        }

        vm-102-disk-0 {
            id = "KsabaN-vBsv-hPQ5-3aSn-htdX-TPXo-FbfQDF"
            status = ["READ", "WRITE", "VISIBLE"]
            flags = []
            creation_time = 1622564486    # 2021-06-02 00:21:26 +0800
            creation_host = "pve"
            segment_count = 1

            segment1 {
                start_extent = 0
                extent_count = 13312    # 52 Gigabytes

                type = "thin"
                thin_pool = "data"
                transaction_id = 7
                device_id = 2
            }
        }

        vm-101-disk-0 {
            id = "OqHfHA-IdCq-8ZRU-Xke5-fdl8-pRpo-jWPTNg"
            status = ["READ", "WRITE", "VISIBLE"]
            flags = []
            creation_time = 1622961797    # 2021-06-06 14:43:17 +0800
            creation_host = "pve"
            segment_count = 1

            segment1 {
                start_extent = 0
                extent_count = 13    # 52 Megabytes

                type = "thin"
                thin_pool = "data"
                transaction_id = 15
                device_id = 7
            }
        }

        vm-103-disk-0 {
            id = "ucspbe-kALY-kmlB-OesG-IWFS-0SDN-eTFxhJ"
            status = ["READ", "WRITE", "VISIBLE"]
            flags = []
            creation_time = 1623475786    # 2021-06-12 13:29:46 +0800
            creation_host = "pve"
            segment_count = 1

            segment1 {
                start_extent = 0
                extent_count = 8192    # 32 Gigabytes

                type = "thin"
                thin_pool = "data"
                transaction_id = 16
                device_id = 8
            }
        }

        data_tdata {
            id = "fnuMeF-ANUP-qLdJ-WbLq-w7rj-FjZp-eQels0"
            status = ["READ", "WRITE"]
            flags = []
            creation_time = 1621089760    # 2021-05-15 22:42:40 +0800
            creation_host = "proxmox"
            segment_count = 3

            segment1 {
                start_extent = 0
                extent_count = 15530    # 60.6641 Gigabytes

                type = "striped"
                stripe_count = 1    # linear

                stripes = [
                    "pv0", 8896
                ]
            }
            segment2 {
                start_extent = 15530
                extent_count = 3551    # 13.8711 Gigabytes

                type = "striped"
                stripe_count = 1    # linear

                stripes = [
                    "pv0", 24938
                ]
            }
            segment3 {
                start_extent = 19081
                extent_count = 4095    # 15.9961 Gigabytes

                type = "striped"
                stripe_count = 1    # linear

                stripes = [
                    "pv1", 0
                ]
            }
        }

        data_tmeta {
            id = "DnFiZ7-4dQB-fAhC-Cl7Z-jl9k-UmmA-BAeZL9"
            status = ["READ", "WRITE"]
            flags = []
            creation_time = 1621089760    # 2021-05-15 22:42:40 +0800
            creation_host = "proxmox"
            segment_count = 1

            segment1 {
                start_extent = 0
                extent_count = 256    # 1024 Megabytes

                type = "striped"
                stripe_count = 1    # linear

                stripes = [
                    "pv0", 24426
                ]
            }
        }

        lvol0_pmspare {
            id = "izIlHg-dG0r-k2HB-s20t-ZtkF-PoFK-Ggd0md"
            status = ["READ", "WRITE"]
            flags = []
            creation_time = 1621089760    # 2021-05-15 22:42:40 +0800
            creation_host = "proxmox"
            segment_count = 1

            segment1 {
                start_extent = 0
                extent_count = 256    # 1024 Megabytes

                type = "striped"
                stripe_count = 1    # linear

                stripes = [
                    "pv0", 24682
                ]
            }
        }
    }

}
 
i mean... why did you do this? you created a file on your root lv to extend the root lv and then deleted it? this will reliably break your lvm setup...

i guess you could try to boot from a live cd and shrink that root lv and remove the non-existing pv again... but depending if there was already
data on it, this may not work...
 
16GB ... smells like SD-Card. Any chance you have used an SD-Card for your installation? And it looks like you setup a striped lvm configuration which is not standard.

Your " data_tdata - segment 3" is now missing this disk. Did you remove your card or is it perhaps defective?
 
dcsapak said:
i mean... why did you do this? you created a file on your root lv to extend the root lv and then deleted it? this will reliably break your lvm setup...

i guess you could try to boot from a live cd and shrink that root lv and remove the non-existing pv again... but depending if there was already
data on it, this may not work...
Click to expand...
Ah ye... this makes sense lol. Didnt read the initial post carefully. :D

Well, it was not a very smart move to delete that file... guess you can start over if there was any data on it.
 
dcsapak said:
i mean... why did you do this? you created a file on your root lv to extend the root lv and then deleted it? this will reliably break your lvm setup...

i guess you could try to boot from a live cd and shrink that root lv and remove the non-existing pv again... but depending if there was already
data on it, this may not work...
Click to expand...
before I did those, there are two disks like below.
my vms' disks are on lvm-thin, and it is full, 0% free, my vms stoped.
So I intended to cut the free space from root lv to extend the data lv which is in lvm-thin.
First I made a file named ~/temp.img, then pvcreate and fdisk it , join it in vg(named 'pve'), lvextend to pve/data (sorry for wrong command in the #1 post)

These were what I've done.

Now I want to recovery my vm disks, or backup vm disks from the damaged LVM-thin part (and then setup the all vms again ).
Please help me! Thanks a lot.

1655733049183.png 1655734183263.png
1655734295598.png
 
thanks for your reply. :)
I deleted the file after finished extend the lv. and all things wrong. so it's lucky I have no time to write data to it.
ekin06 said:
Ah ye... this makes sense lol. Didnt read the initial post carefully. :D

Well, it was not a very smart move to delete that file... guess you can start over if there was any data on it.
Click to expand...
 
Last edited:
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