[RndTbl] LVM import question

[Kevin McGregor]

Hm. ClamAV is no longer included in SysRescCd due to its size. Rats.

On Tue, Nov 3, 2015 at 1:23 PM, Kevin McGregor <kevin.a.mcgregor at gmail.com>
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>
> 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>
>> 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>
>>> 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
>>>
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>>>
>> --
>> Sent from my Android device with K-9 Mail. Please excuse my brevity.
>>
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>>
>
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