<p dir="ltr">Try running badblocks on that drive from a live CD.<br>
A sector error at a partition boundary is a mess like this.<br>
</p>
<div class="gmail_quote">On Mar 11, 2014 11:37 PM, "Scott Castaline" <<a href="mailto:skotchman@gmail.com">skotchman@gmail.com</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000">
<div>Okay, so now I have noticed an error
message which indicates to use systemctl status
pub-Downloads.mount, to see more info. It's complaining about the
ext4 fs and the superblock is bad. I've done this about 6 times
and get the same results. I have always just created the fs by
"mkfs.ext4 </path/to/device>" which for this one would be
/dev/mapper/ncc1701_02-pub_dnlds. I always thought that fs type
was specified in the .ext4 part of mkfs. I've never used any other
options except on occasion I used -L for labeling the fs for
whatever reasons. I did notice that it seemed to do the fs rather
quick, other than that I didn't notice any problems with the
initialization process.<br>
<br>
Below is excerpt of system log:<br>
<br>
Mar 11 22:53:51 ncc1701 mount: mount: wrong fs type, bad option,
bad superblock on /dev/mapper/ncc1701_02-pub_dnlds,<br>
Mar 11 22:53:51 ncc1701 mount: missing codepage or helper program,
or other error<br>
Mar 11 22:53:51 ncc1701 mount: In some cases useful info is found
in syslog - try<br>
Mar 11 22:53:51 ncc1701 mount: dmesg | tail or so.<br>
<br>
Mar 11 22:53:51 ncc1701 systemd: pub-Downloads.mount mount process
exited, code=exited status=32<br>
Mar 11 22:53:51 ncc1701 systemd: Failed to mount /pub/Downloads.<br>
Mar 11 22:53:51 ncc1701 systemd: Dependency failed for Local File
Systems.<br>
Mar 11 22:53:51 ncc1701 systemd: Dependency failed for Mark the
need to relabel after reboot.<br>
<br>
the gap between the mount and the systemd entries had stuff not
related to the problem.<br>
<br>
Aside from scrapping the system and doing a full re-install
anything else that I should try? Are their new options that I
should be using that I'm not seeing in the man pages? I don't want
to re-install as what will I do when I replace the drive that lead
to this mess, re-install again?<br>
<br>
Scott C.<br>
<br>
On 03/11/2014 11:00 PM, Jim Kinney wrote:<br>
</div>
<blockquote type="cite">
<p dir="ltr">I do believe you are correct. A F20 encrypted laptop
shows a pair of partitions, one is boot the other is a type 83 .
Pvscan shows the source as being inside a container called
luks-<long string UUID type> with lvms inside it. Fstab
shows / as type ext4 with options default,
x-systemd.device-timeout=0</p>
<p dir="ltr">The /dev/mapper/ luks-* links to ../dm0. The lvms
links to dm1,dm2, etc.</p>
<p dir="ltr">It would not make sense to force lvm to understand
encryption so it must be the lvm container. Um. Duh.</p>
<div class="gmail_quote">On Mar 11, 2014 5:49 PM, "Derek Atkins"
<<a href="mailto:derek@ihtfp.com" target="_blank">derek@ihtfp.com</a>>
wrote:<br type="attribution">
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<span style="font-family:Arial">Sorry, your thinking is
faulty. <br>
<br>
When you install a system with encrypted disk the installer
creates a /boot partition and a crypt partition. Then
creates / and swap inside an lvm inside the crypt. When I
get back to my laptop I can show you all the partition info
that shows this.<br>
<br>
-derek<br>
<br>
Sent from my HTC smartphone<br>
<br>
<br>
<div>----- Reply message -----<br>
From: "Jim Kinney" <<a href="mailto:jim.kinney@gmail.com" target="_blank">jim.kinney@gmail.com</a>><br>
To: "Atlanta Linux Enthusiasts" <<a href="mailto:ale@ale.org" target="_blank">ale@ale.org</a>><br>
Subject: [ale] changes to fstab in fedora 20<br>
Date: Tue, Mar 11, 2014 5:37 PM<br>
<br>
</div>
</span><br>
<div dir="ltr">
<div>I'll have to double check my laptop at home. I know the
installer will do the RightThing automagically so that's
the easiest way to fix it.<br>
<br>
</div>
Seems like the PV has to be outside the crypt container at
the least as individual LVs can be crypted. Usuall routine
is to crypt everything but /boot so even swap get protected.
In Fedora, default setup is a /boot, a PV with a single LV
that contains / and swap and /home partitions. Thus my
(probably faulty) thinking that the encryption occurs inside
the LV itself.<br>
</div>
<div class="gmail_extra"><br>
<br>
<div class="gmail_quote">On Tue, Mar 11, 2014 at 5:19 PM,
Derek Atkins <span dir="ltr"><<a href="mailto:derek@ihtfp.com" target="_blank">derek@ihtfp.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<span style="font-family:Arial">I think you have those
commands backwards. If you want to create an encrypted
drive ala the installer I think you need to
cryptsetup, then pvcreate, then lvcreate, then mkfs.
This mirrors what my encrypted system looks like.
The lvm is inside the crypto.<br>
<br>
-derek<br>
<br>
Sent from my HTC smartphone
<div>
<div><br>
<br>
<br>
<div>----- Reply message -----<br>
From: "Jim Kinney" <<a href="mailto:jim.kinney@gmail.com" target="_blank">jim.kinney@gmail.com</a>><br>
To: "Atlanta Linux Enthusiasts" <<a href="mailto:ale@ale.org" target="_blank">ale@ale.org</a>><br>
Subject: [ale] changes to fstab in fedora 20<br>
Date: Tue, Mar 11, 2014 5:03 PM<br>
<br>
</div>
</div>
</div>
</span>
<div>
<div><br>
<div dir="ltr">
<div>
<div>
<div>
<div>I know the encrypt drives process
JustWorks during _installation_ of F20.
I'm 90% certain it encrypts the contents
of an LVM and not the other way around. If
you encrypt a container that holds PVM/LVM
IDs, the kernel will not know how to use
it (I think - still digging in systemd as
well). Also, F20 is using grub2 which is
also a vertical learning curve.<br>
<br>
</div>
I think you need to go the following order:<br>
<br>
</div>
pvcreate<br>
</div>
<div>lvcreate<br>
</div>
cryptsetup<br>
</div>
mkfs<br>
</div>
<div class="gmail_extra"><br>
<br>
<div class="gmail_quote">On Tue, Mar 11, 2014 at
4:36 PM, Scott Castaline <span dir="ltr"><<a href="mailto:skotchman@gmail.com" target="_blank">skotchman@gmail.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Anyone understand the
changes made to filesystem mounting at
boot-time in Fedora 20? Apparently systemd now
controls it all? The reason i ask is that when
I had originally upgraded to F 20 I had setup
all 5 drives in the installer. Since then
everytime the door leading to the garage,
under the room my systems are in, slams shut
it causes the floor to pop up and my system
will sometimes jump. Normally everyone is
careful about opening and closing this door
and I had also moved the computers over to the
other side of the room the last time I went
through the hassle of crashed drives. This one
day was exceptionally windy and the door
really slammed hard. Immediately I started
getting warnings of read/write errors, bad
sectors, etc., etc. on one drive then 2 more
drives suddenly unmounted. The system then
rebooted itself and never came back up.<br>
<br>
Since it was toast I went ahead and ran
smartctl tests followed by badblocks which
pointed to my 4th drive (hmm not the 5th or
3rd drives). I then ran dd if=/dev/urandom
of=/dev/sd? on the remaining 4 drives. I did
the boot drive seperately so that I could get
my system at least partially back up. I
reinstalled F 20 with just the one hdd
figuring that the remaining 3 drive I could
manually add back in. By the way I don't use
raid so that is not to be figured into my
problem, I do however setup LUKS on the raw
device followed by LVM. My steps are:<br>
<br>
1. cryptsetup luksFormat /dev/sd? (exact
syntax maybe wrong as I'm doing this by memory
which admittedly has gone downhill lately).<br>
<br>
2. blkid /dev/sd? (to get the luks UUID of the
drive for the next 2 steps)<br>
<br>
3. cryptsetup luksOpen /dev/sd? luks-<Block
UUID ><br>
<br>
4. pvcreate /dev/mapper/luks-<Block UUID
><br>
<br>
5. vgcreate <name used for vg>
/dev/mapper/luks-<Block UUID ><br>
<br>
6. lvcreate -L <size of lv> -n <name
of lv> <name of vg><br>
<br>
7. mkfs.ext4 /dev/mapper/vg-name/lv-name<br>
<br>
8. I'll go ahead and mount it where I plan to
mount it in fstab and verify that all is well.<br>
<br>
9. Add the luks UUID in /etc/crypttab and
enter the mounting info of the lv in fstab.
(This is where it is different. I noticed that
the mount options part is different from the
past in that it'll have
"defaults;x-systemd.device-timeout=0 1 2" on
lvs that were created by the installer. So I
duplicated this for the lvs that I added.<br>
<br>
10. Unmount lvs, close luks volume and reboot.<br>
<br>
The system will then either hang on boot or
dump out to maintenance mode when trying to
mount my lv. I can however manually mount the
lv and the boot will continue. So what's the
deal? Anyone know? This is the way I've done
it in the past with NFP. I found the docs on
this very confusing in that it keeps on
referring to something else which will refer
to something else again, so on & so on,
eventually it goes around in a circle.<br>
<br>
Hellllppp Meeeeeeeeeeee (in my best human-fly
imitation from the spider web).<br>
<br>
Scott C.<br>
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</blockquote>
</div>
<br>
<br clear="all">
<br>
-- <br>
<div dir="ltr">-- <br>
James P. Kinney III<br>
<i><i><i><i><br>
</i></i></i></i>Every time you stop a
school, you will have to build a jail. What you
gain at one end you lose at the other. It's like
feeding a dog on his own tail. It won't fatten
the dog.<br>
- Speech 11/23/1900 Mark Twain<br>
<i><i><i><i><br>
<a href="http://heretothereideas.blogspot.com/" target="_blank">http://heretothereideas.blogspot.com/</a><br>
</i></i></i></i></div>
</div>
</div>
</div>
<br>
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</blockquote>
</div>
<br>
<br clear="all">
<br>
-- <br>
<div dir="ltr">-- <br>
James P. Kinney III<br>
<i><i><i><i><br>
</i></i></i></i>Every time you stop a school, you
will have to build a jail. What you gain at one end you
lose at the other. It's like feeding a dog on his own
tail. It won't fatten the dog.<br>
- Speech 11/23/1900 Mark Twain<br>
<i><i><i><i><br>
<a href="http://heretothereideas.blogspot.com/" target="_blank">http://heretothereideas.blogspot.com/</a><br>
</i></i></i></i></div>
</div>
<br>
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</blockquote>
</div>
<br>
<fieldset></fieldset>
<br>
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