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Is it okay to have root file system on a lvm2 logical volume? Because, I always get the following error on every time I reboot or shutdown the machine.

Can't deactivate volume group "vgSystem" with 1 open logical volume(s) failed will now restart.

vgSystem volume group contains two logical volumes, namely, lvRoot for root file system and lvSwap for swap.

Although, it has no effect on booting on next time, personally I don not like to see warning messages in Red letters, especially the one which says failed. So can someone help me regarding this issue.

In case if you want to know my partition structure, here it is...

Disk /dev/sda: 247.0 GB, 246960619520 bytes 255 heads, 63 sectors/track, 30024 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x0000993f

Device Boot Start End Blocks Id System

/dev/sda1 * 1 122 975872 83 Linux

Partition 1 does not end on cylinder boundary.

/dev/sda2 122 3648 28320768 8e Linux LVM

/dev/sda3 3648 30025 211873792 8e Linux LVM

On side question: How to avoid the statement Partition 1 does not end on cylinder boundary is appearing when partitioning using fdisk (i.e. how to partition correctly so that the above statement does not appear)

Thank you in advance :)

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1 Answer 1

It sounds like the shutdown script is being a little indiscriminate in managing LVM. In short, you have nothing to fear, you won't be able to deactivate an LVM volume while it's in use.

Your second question is much more complicated. It amounts to aligning your partitions correctly depending on the sector size of your disk. Here's a good article from IBM to get you started. It's not fatal, though it will impact performance some. Unless you're running a production server, or you're really into tweaking, I would leave it alone.

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The link you have given is quite useful. It is a good starting point. Thanks for the effort and information :) –  nobody Jan 12 '12 at 1:25
    
You're welcome. –  ppetraki Jan 12 '12 at 3:14

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