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List:       gentoo-user
Subject:    Re: [gentoo-user] LVM2+mdraid5+LUKS+systemd (was Re: LVM2+mdraid+systemd)
From:       "Stefan G. Weichinger" <lists () xunil ! at>
Date:       2013-09-23 7:09:04
Message-ID: 523FE910.6090202 () xunil ! at
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Am 21.09.2013 23:49, schrieb Canek Peláez Valdés:
> OK, so I conducted another experiment, to see if I was able to make
> systemd *not* to work with an exotic combination of underlying
> storage. I did the following:
> 
> - 4 drives, all of them in RAID5.
> - The resulting /dev/md127 was put in a Physical Volume, that in a
> Volume Group, and that split into 5 Logical Volumes:
>    1. /boot (unnecessary, but why not)
>    2. swap
>    3. / (root)
>    4. /usr
>    5. /home
> - The /home partition was encrypted, and so was the swap.
> 
> Everything works, but now I did had to do something not intuitive.
> 
> First the intuitive changes from my previous experiment:
> 
> 1. I had to put this in /etc/default/grub:
> 
> GRUB_PRELOAD_MODULES="lvm mdraid1x"
> 
> Basically that's it. The partitions again use labels, so I didn't had
> to touch fstab, except for the not intuitive change.
> 
> The problem, that I believe Stefan and Frank hinted, is that the
> encrypted swap did not activated properly, sometimes resulting in huge
> boot times (in the order of 1 minute). But only if you specify the
> swap partition in fstab.

Yes, I reported this issue back then ... but I don't have the encrypted
swap in /etc/fstab.

I only have:

# cat /etc/crypttab

swap /dev/disk/by-id/ata-INTEL_SSDSA2M080G2GC_CVPO015404LR080JGN-part5
/dev/urandom swap,cipher=aes-cbc-essiv:sha256,size=256

which gives me a /dev/mapper/swap ... but no activated swap ...

I will create a swap-unit now ...

S

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