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Old 06-20-2008, 05:30 PM   #1
raypen
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Registered: Jun 2002
Location: Midwest
Distribution: Slackware
Posts: 365

Rep: Reputation: 30
Is device-mapper necessary if you don't use LVM?


Just recompiled a kernel (2.6.21.5 on Slack 12), pretty much from scratch,
to eliminate unnecessary elements. All went smoothly until I ran LILO:

Code:
/proc/misc: no entry for device-mapper found
Is device-mapper missing from kernel?
Failure to communicate with kernel device-mapper driver.
Since I don't have a RAID setup, I excluded everything about LVM
from my configuration.

Rebooting revealed no problems and, so far, I have not encountered
any trouble. Is there any reason to include device-mapper in the
kernel and, if so, what do I select in make menuconfig to include
it only?

I apologize if this question has already been answered; I just can't
seem to find the appropriate explanation.
 
Old 06-23-2008, 07:17 AM   #2
JZL240I-U
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Registered: Apr 2003
Location: Germany
Distribution: openSuSE Tumbleweed-KDE, Mint 18.3+19.0, MX-18
Posts: 4,260

Rep: Reputation: Disabled
LVM is not RAID -- sorry if I reiterate things you are aware of. See here where it is needed too:

http://en.wikipedia.org/wiki/Device_mapper
 
  


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