Re: [linux-lvm] Help : vg not accessible (with pvdata result)

["dld.pascal.garcia" <dld.pascal.garcia@wanadoo.fr>]

Hello,  
My problem is the following :  
If use lvm on my laptop for ages.  
  
By lack of space I decided to add a pv to the vg, and extend the lv /.  
 
It seems that diskdrake uses a pvcreate to add the pv in the vg.  
After I made a lvextend on the lv mounted as / of 500Mb and a  
rizerfsresize.  
This was working fine. The problem occured after reboot.  
  
I did not run lilo  to recreate the Master boot sector and may be it is  
one problem as / in a lv.  
  
I tried the recue disk, but Mandrake did not include the lvmtools, so I  
tried a new installation. The installation process told me that there  
was illegal division by 0 when acessing the information of the vg.  
So i did not change anything an stopped the installation, (switch off  
the pc because there is no sofware abort possible without change of the  
disk data at this stage of the installation).  
  
As I had no solution on the portable, I took the disk out of my portable,  
and put it as primary (so the disk is hda as in the portable) in a fixed  
machine  (special cables available), I added a second disk as slave and  
installed the  distribution on the second disk. Then the MSB has been  
replaced. That is really a problem because now I can not even start  
booting on the portable disk.  
  
  
All the tools are now available, diskdrake told me that the partition I  
finally  added (hda1) was not in the vg. So I added the partition. It  
was an error I completly  realize it now.  
An error has been repported on pvcreate, but mainly it has been done, 
but  
the data  in /etc has not been created.  
  
whith pvdata now I can see that I have 2 pvs with number one. The  
orgiginal first (hda6) and the volume i finally added (hda1).  
  
pvremove reports an error, and does nothing.  
  
vgscan does nothing on rootvg as it is inconsistant. Anyway the system do  
not know the vg, /dev/rootvg/[123] do not exist.  
  
 
I think I should first, by patching the data by hand, either remove the  
last pv I added (hda1), or make it as beeing the 3rd pv of the vg. What  
ever I have to patch, I have to make the data on the pv consistant. 
 
When the data will then be available, I will backup the data, put the  
disk back in the portable and reinstall everything.  
  
Thank you for any help that would permit to save my data. 
  
Pascal Garcia  
  
 
Here is the result of the vgscan and pvdata 
 
 
root@localhost: /root[root@localhost root]# vgscan 
vgscan -- reading all physical volumes (this may take a while...) 
vgscan -- ERROR "vg_read_with_pv_and_lv(): current PV" can't get data 
of volume group "rootvg" from physical volume(s) 
vgscan -- "/etc/lvmtab" and "/etc/lvmtab.d" successfully created 
vgscan -- WARNING: This program does not do a VGDA backup of your 
volume group 
 
root@localhost: /root[root@localhost root]# vgscan -v 
vgscan -- removing "/etc/lvmtab" and "/etc/lvmtab.d" 
vgscan -- creating empty "/etc/lvmtab" and "/etc/lvmtab.d" 
vgscan -- reading all physical volumes (this may take a while...) 
vgscan -- scanning for all active volume group(s) first 
vgscan -- reading data of volume group "rootvg" from physical volume(s) 
vgscan -- ERROR "vg_read_with_pv_and_lv(): current PV" can't get data 
of volume group "rootvg" from physical volume(s) 
vgscan -- "/etc/lvmtab" and "/etc/lvmtab.d" successfully created 
vgscan -- WARNING: This program does not do a VGDA backup of your 
volume group 
 
root@localhost: /root[root@localhost root]#  
root@localhost: /root[root@localhost root]#  
root@localhost: /root[root@localhost root]# pvdata /dev/hda6 
--- Physical volume --- 
PV Name               /dev/hda6 
VG Name               rootvg 
PV Size               20.71 GB [43423632 secs] / NOT usable 32.19 MB [LVM: 
130 KB] 
PV#                   1 
PV Status             available 
Allocatable           yes (but full) 
Cur LV                3 
PE Size (KByte)       32768 
Total PE              661 
Free PE               0 
Allocated PE          661 
PV UUID               l1McpK-mb3s-j04q-NRFM-ili3-mcF0-MPHqnV 
 
--- Volume group --- 
VG Name                
VG Access             read/write 
VG Status             NOT available/resizable 
VG #                  0 
MAX LV                256 
Cur LV                3 
Open LV               0 
MAX LV Size           2 TB 
Max PV                256 
Cur PV                3 
Act PV                3 
VG Size               27.78 GB 
PE Size               32 MB 
Total PE              889 
Alloc PE / Size       685 / 21.41 GB 
Free  PE / Size       204 / 6.38 GB 
VG UUID               dyEbIX-HcZF-9Jna-UmlR-bmKL-PiQ6-kFLTq0 
 
--- List of logical volumes --- 
 
pvdata -- logical volume "/dev/rootvg/1" at offset   0 
pvdata -- logical volume "/dev/rootvg/2" at offset   1 
pvdata -- logical volume "/dev/rootvg/3" at offset   2 
pvdata -- logical volume struct at offset   3 is empty 
... 
pvdata -- logical volume struct at offset 255 is empty 
--- List of physical volume UUIDs --- 
 
001: l1McpK-mb3s-j04q-NRFM-ili3-mcF0-MPHqnV 
002: miXh0a-OJFd-7zRt-2oQT-uvHb-zsTO-xBV7O8 
003: The3kH-g4Pr-eFe2-mcKO-pAgq-BUNr-NLXs1w 
 
root@localhost: /root[root@localhost root]# pvdata /dev/hda5 
--- Physical volume --- 
PV Name               /dev/hda5 
VG Name               rootvg 
PV Size               313.74 MB [642537 secs] / NOT usable 32.19 MB [LVM: 
128 KB] 
PV#                   2 
PV Status             NOT available 
Allocatable           yes (but full) 
Cur LV                1 
PE Size (KByte)       32768 
Total PE              8 
Free PE               0 
Allocated PE          8 
PV UUID               miXh0a-OJFd-7zRt-2oQT-uvHb-zsTO-xBV7O8 
 
--- Volume group --- 
VG Name                
VG Access             read/write 
VG Status             NOT available/resizable 
VG #                  0 
MAX LV                256 
Cur LV                3 
Open LV               0 
MAX LV Size           2 TB 
Max PV                256 
Cur PV                3 
Act PV                3 
VG Size               27.78 GB 
PE Size               32 MB 
Total PE              889 
Alloc PE / Size       685 / 21.41 GB 
Free  PE / Size       204 / 6.38 GB 
VG UUID               dyEbIX-HcZF-9Jna-UmlR-bmKL-PiQ6-kFLTq0 
 
--- List of logical volumes --- 
 
pvdata -- logical volume "/dev/rootvg/1" at offset   0 
pvdata -- logical volume "/dev/rootvg/2" at offset   1 
pvdata -- logical volume "/dev/rootvg/3" at offset   2 
pvdata -- logical volume struct at offset   3 is empty 
... 
pvdata -- logical volume struct at offset 255 is empty 
--- List of physical volume UUIDs --- 
 
001: l1McpK-mb3s-j04q-NRFM-ili3-mcF0-MPHqnV 
002: miXh0a-OJFd-7zRt-2oQT-uvHb-zsTO-xBV7O8 
003: The3kH-g4Pr-eFe2-mcKO-pAgq-BUNr-NLXs1w 
 
 
root@localhost: /root[root@localhost root]# pvdisplay /dev/hda6 
--- Physical volume --- 
PV Name               /dev/ide/host0/bus0/target0/lun0/part6 
VG Name               rootvg 
PV Size               20.71 GB [43423632 secs] / NOT usable 32.19 MB [LVM: 
130 KB] 
PV#                   1 
PV Status             available 
Allocatable           yes (but full) 
Cur LV                3 
PE Size (KByte)       32768 
Total PE              661 
Free PE               0 
Allocated PE          661 
PV UUID               l1McpK-mb3s-j04q-NRFM-ili3-mcF0-MPHqnV 
 
 
root@localhost: /root[root@localhost root]# pvdisplay /dev/hda5 
--- Physical volume --- 
PV Name               /dev/ide/host0/bus0/target0/lun0/part5 
VG Name               rootvg 
PV Size               313.74 MB [642537 secs] / NOT usable 32.19 MB [LVM: 
128 KB] 
PV#                   2 
PV Status             NOT available 
Allocatable           yes (but full) 
Cur LV                1 
PE Size (KByte)       32768 
Total PE              8 
Free PE               0 
Allocated PE          8 
PV UUID               miXh0a-OJFd-7zRt-2oQT-uvHb-zsTO-xBV7O8 
 
root@localhost: /root/vg[root@localhost vg]# pvdisplay /dev/hda1 
--- Physical volume --- 
PV Name               /dev/ide/host0/bus0/target0/lun0/part1 
VG Name               rootvg 
PV Size               6.93 GB [14538762 secs] / NOT usable 32.19 MB [LVM: 
128 KB] 
PV#                   1 
PV Status             NOT available 
Allocatable           yes 
Cur LV                0 
PE Size (KByte)       32768 
Total PE              220 
Free PE               220 
Allocated PE          0 
PV UUID               none 
 
 
root@localhost: /root/vg[root@localhost vg]# pvdata /dev/hda1 
--- Physical volume --- 
PV Name               /dev/hda1 
VG Name               rootvg 
PV Size               6.93 GB [14538762 secs] / NOT usable 32.19 MB [LVM: 
128 KB] 
PV#                   1 
PV Status             NOT available 
Allocatable           yes 
Cur LV                0 
PE Size (KByte)       32768 
Total PE              220 
Free PE               220 
Allocated PE          0 
PV UUID               none 
 
--- Volume group --- 
VG Name                
VG Access             read/write 
VG Status             NOT available/resizable 
VG #                  0 
MAX LV                256 
Cur LV                0 
Open LV               0 
MAX LV Size           2 TB 
Max PV                256 
Cur PV                1 
Act PV                1 
VG Size               6.88 GB 
PE Size               32 MB 
Total PE              220 
Alloc PE / Size       0 / 0 
Free  PE / Size       220 / 6.88 GB 
VG UUID               none 
 
--- List of logical volumes --- 
 
pvdata -- logical volume struct at offset   0 is empty 
... 
pvdata -- logical volume struct at offset 255 is empty 
--- List of physical volume UUIDs --- 
 
Segmentation fault (core dumped)