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Re: Converting to EXT4 on encrypted lvm

Yes, I found it under /dev/mapper, and it is as follows:


I'll try this in a moment, and see if it works.

Thanks for the help.


On Wed, Jul 1, 2009 at 1:35 PM, Bruno Wolff III<bruno wolff to> wrote:
> On Wed, Jul 01, 2009 at 13:05:09 -0600,
>  "Andrig T. Miller" <andrig t miller gmail com> wrote:
>> After upgrading to Fedora 11 x86_64, I started to look into converting
>> to EXT4 from EXT3.
>> My / partition is an lvm that is encrypted (I do have a separate /boot).
>> I tried following the instructions using tune2fs -O
>> extents,uninit_bg,dir_index /dev/sda2 (my / device and /boot is
>> /dev/sda1).
>> Finally, I just booted by changing /etc/fstab to specify ext4, which
>> works fine, but from reading the various instructions, I won't have
>> the new features turned on unless I am able to use tune2fs
>> successfully.
> You have to point to the block device your file system is on, not the disk
> partition. I have used tune2fs on encrypted partitions and the device
> is /dev/mapper/luks-someluksuuid . In your case you need to find the lvm
> device name used for the file system. I don't know how those look, but
> I would expect a device mapper entry for it, so /dev/mapper would be a
> good place to look. You'll have a luks entry there as well, but you will
> not want to use it as that is the device that lvm is on, not a device
> provided by lvm.

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