[linux-lvm] lvm2 pb on hppa-linux

Tue Aug 5 15:55:02 UTC 2003

Hi all,

Since the announce of lvm2 I used succefuly lvm tools (also with evms tools
before 1.9 ie evms-1.2.1) on my linux hppa box runing a last updated linux-2.4.21-pa8
(+ a very small hack to use generic_ffs()).

Now I try to install lvm2 and dm1.

I so recover last lvm-1.0.7. I configure it and build PATCHES which I apply
against kernel (without VFS-lock). Then I reboot it and install tools:
_no pb_ :-)

# vgdisplay --version
vgdisplay: Logical Volume Manager 1.0.7
Heinz Mauelshagen
 Sistina Software  28/03/2003 (IOP 10)

# vgdisplay -v
--- Volume group ---
VG Name               EvmsLvm
VG Access             read/write
VG Status             available/resizable
VG #                  0
MAX LV                256
Cur LV      
         2
Open LV               0
MAX LV Size           255.99 GB
Max PV                256
Cur PV                1
Act PV                1
VG Size               3.99 GB
PE Size               4 MB
Total PE              1022
Alloc PE / Size   
   896 / 3.50 GB
Free  PE / Size       126 / 504 MB
VG UUID               k7px10-qfN2-J3y0-fony-aczD-HLwn-ZnN9G3

--- Logical volume ---
LV Name                /dev/EvmsLvm/DebianRep
VG Name                EvmsLvm
LV Write Access        read/wri
e
LV Status              available
LV #                   1
# open                 0
LV Size                3 GB
Current LE             768
Allocated LE           768
Allocation             next free
Read ahead sectors     120
Block device    
      58:1

--- Logical volume ---
LV Name                /dev/EvmsLvm/JfsTst
VG Name                EvmsLvm
LV Write Access        read/write
LV Status              available
LV #                   2
# open                 0
LV Size          
     512 MB
Current LE             128
Allocated LE           128
Allocation             next free
Read ahead sectors     120
Block device           58:2

--- Physical volumes ---
PV Name (#)           /dev/sdc (1)
PV Status             avai
able / allocatable
Total PE / Free PE    1022 / 126

_no pb_ to mount and use usually the first lv (/dev/EvmsLvm/DebianRep)

#df
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/md2               1700208   1086488    52735
  68% /
/dev/md0                123891     58924     58571  51% /boot
/dev/md3                247791    132508    102490  57% /var
/dev/md4                123827      4118    113316   4% /tmp
/dev/md5                123827     10339    107095   9% 
home
/dev/md6               2015696   1200328    794892  61% /usr/src
/dev/md7               2015696   1927752     67468  97% /Sources
/dev/md8               2015696   1612664    382556  81% /Develop
/dev/EvmsLvm/DebianRep
                       3096336   2926848    138032  96% /Debian

I so go further and patch kernel with dm/patches/devicemapper-ioctl.patch
(no VFS-lock) rebuild it wihtout any pb or warning (about dm part :-)) ).
I so install dmsetup tool and reboot with this kernel sucessfully (no pb
to discover vg and lv as lvm1 tools are still installed)

The dmsetup create well special file:
# ll /dev/mapper
total 28
drwxr-xr-x    2 root     root         4096 Aug  5 17:52 .
drwxr-xr-x    9 root     root        24576 Aug  5 16:04 ..
crw-------    1 root     root      10,  63 Aug  5 17:52 control

:-)

To be care I "vgchange -a n", than compile and install lvm2 tools.
Then I just edit lvm.conf file so that filter only sd disc
filter = [ "a|^/dev/sd|, "r/.*/" ]
[...]
file = /var/log/lvm2.log

level=7

activation=1 # in log section

Unfortunately _vgchange_ failled to recover vg structure:

#vgscan --version
  LVM version:     2.00.05 (2003-07-18)
  Library version: 1.00.02-ioctl (2003-07-12)
  Driver version
  4.0.1

#vgscan
  Volume group "EvmsLvm" not found
    Wiping cache of LVM-capable devices
    Wiping internal cache
  Reading all physical volumes.  This may take a while...
    Finding all volume groups
    Finding volume group "EvmsLvm"

Very strange: it first tell 'Volume group "EvmsLvm" not found' and finaly
'Finding volume group "EvmsLvm"' ?

Vgchange will it tell the true?
#vgchange -a y

too bad:
  Out of memory.  Requested 2483027988 bytes.
  Failed to read extents from /dev/sdc
  Unable to find volume group "EvmsLvm"

Any idea?

(As I use full log I join a gz of this lvm2.log)

Thanks in advance for help,
    Joel

PS: I do a similar exercise on my ia32 platform (same linux-2.4.21 not pa
specific naturaly) and do not met any pb.
There is anyway a small difference:
on the ia32 I build a vg over a disk slice; on hppa, allover a full disk
(i don't think that it does matter, but just in case?)

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