[RndTbl] LVM import question

[Adam Thompson]

You need to do "lvchange -ay ubuntu-vg/root" and then it will show up 
under /dev/mapper.
-Adam


On 15-11-03 01:23 PM, Kevin McGregor wrote:
> We're aiming for an off-line scan; I'll look into sysresccd as an option.
>
> As for mounting the LVs, I get this sort of result:
> root at cowsvplav01:~# pvs
>   PV         VG  Fmt  Attr PSize  PFree
>   /dev/sdb5  ubuntu-vg lvm2 a--  14.76g 268.00m
> root at cowsvplav01:~# vgs
>   VG        #PV #LV #SN Attr   VSize  VFree
>   ubuntu-vg   1   2   0 wz--n- 14.76g 268.00m
> root at cowsvplav01:~# lvs
>   LV     VG        Attr      LSize    Pool Origin Data%  Move Log 
> Copy%  Convert
>   root   ubuntu-vg -wi------   13.50g
>   swap_1 ubuntu-vg -wi------ 1020.00m
> root at cowsvplav01:~# ls /dev/mapper
> control
> root at cowsvplav01:~#
>
> So I don't know how I'm going to mount any of it. Yes, I've hot-added 
> it. FWIW, I'm using VMware ESXi 5.1.
>
> On Tue, Nov 3, 2015 at 12:46 PM, Adam Thompson <athompso at athompso.net 
> <mailto:athompso at athompso.net>> wrote:
>
>     Note that if looking for Linux rootkits, NFS export will/can hide
>     them. Otherwise, yeah...
>
>
>     On November 3, 2015 12:37:28 PM CST, John Lange <john at johnlange.ca
>     <mailto:john at johnlange.ca>> wrote:
>
>         You could just mount the remote disk over the "network" and
>         then scan it.
>
>
>         On Tue, Nov 3, 2015 at 11:48 AM, Adam Thompson
>         <athompso at athompso.net <mailto:athompso at athompso.net>> wrote:
>
>
>
>             On 15-11-03 10:55 AM, Kevin McGregor wrote:
>
>                 I would like to be able to temporarily move a disk
>                 from one Linux system to another. The disk has a
>                 complete LVM2 volume group on it which I would like to
>                 mount on the second system. However, I may or may not
>                 be able to mark the volume group as "exported".
>
>                 Is there any way to import a volume group which isn't
>                 marked as "exported"? Or to use the destination system
>                 to mark it as such?
>
>                 Background: I've been tasked with creating a Linux VM
>                 (Virtual Machine) with ClamAV on it which can scan
>                 other Linux VM disks. To do that I assumed I'd shut
>                 down the target system and mount its disks on the
>                 scanning VM, do the scan, then remove the target disks
>                 from the scanning VM.
>
>                 Is there a better way?
>
>                 Kevin
>
>
>             Boot a LiveCD on the to-be-scanned VM?
>
>             Actually, I would boot a LiveCD in the dedicated VM
>             anyway. Sysresccd works well, and usually has a
>             reasonably-up-to-date version of ClamAV.  Also, it doesn't
>             require 3D video, so it works well in a VM (unlike, say,
>             Ubuntu, CentOS 7, etc.).
>
>             If you want a regular HDD (vdd?) installed linux system
>             anyway, simply running "pvs", "vgs", "lvs" and then
>             mounting the FS out of /dev/mapper should work.  You might
>             have to do a "{pv,vg,lv}change -ay" if it's not marked as
>             active.  Do NOT flag it as exported once you're done
>             scanning it, or the origin system may refuse to automount it.
>
>             If you're running in VMware, I would recommend hot-adding
>             the volume to the scanning VM so that it never
>             accidentally tries to boot off it.
>
>             -Adam
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>
>
>         -- 
>         John Lange
>         www.johnlange.ca <http://www.johnlange.ca>
>
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