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Bug#496727: marked as done (partman fails with LVM over dm-crypt over RAID with the lenny beta2 d-i)

Your message dated Wed, 08 Sep 2010 03:58:31 +0000
with message-id <E1OtBnr-0005lw-Ik@ravel.debian.org>
and subject line Closing old installation report #496727
has caused the Debian Bug report #496727,
regarding partman fails with LVM over dm-crypt over RAID with the lenny beta2 d-i
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
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misconfiguration somewhere. Please contact owner@bugs.debian.org
immediately.)


-- 
496727: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=496727
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Package: installation-reports

Boot method: netboot
Image version: lenny d-i beta2
Date: Tue, 26 Aug 2008 21:22:47 -0400

Machine: monkeyman
Processor: Intel(R) Xeon(TM) CPU 3.20GHz
Memory: 1G
Partitions: 
0 shoveler:/# df -Tl
Filesystem    Type   1K-blocks      Used Available Use% Mounted on
/dev/mapper/vg_shoveler0-root
              ext3     1032088     75104    904556   8% /
/dev/md0      ext3      474348     16593    433263   4% /boot
/dev/mapper/vg_shoveler0-usr
              ext3     5160576    334816   4563616   7% /usr
/dev/mapper/vg_shoveler0-var
              ext3     5160576    292336   4606096   6% /var
tmpfs        tmpfs      453204        40    453164   1% /dev
0 shoveler:/# cat /proc/partitions 
major minor  #blocks  name

   8     0  488386584 sda
   8     1     489951 sda1
   8     2     979965 sda2
   8     3  486914085 sda3
   8    16  488386584 sdb
   8    17     489951 sdb1
   8    18     979965 sdb2
   8    19  486914085 sdb3
   9     0     489856 md0
   9     1  486913984 md1
 254     0  486912956 dm-0
 254     1     979965 dm-1
 254     2     979965 dm-2
 254     3    1048576 dm-3
 254     4    5242880 dm-4
 254     5    5242880 dm-5
0 shoveler:/# cat /etc/crypttab 
sda2_crypt /dev/sda2 /dev/urandom cipher=serpent-xts-plain,size=256,swap
sdb2_crypt /dev/sdb2 /dev/urandom cipher=serpent-xts-plain,size=256,swap
0 shoveler:/# cat /proc/mdstat 
Personalities : [raid0] [raid1] [raid6] [raid5] [raid4] 
md1 : active raid1 sdb3[1] sda3[0]
      486913984 blocks [2/2] [UU]
      [==========>..........]  resync = 52.4% (255497664/486913984) finish=44.5min speed=86491K/sec
      
md0 : active raid1 sdb1[1] sda1[0]
      489856 blocks [2/2] [UU]
      
unused devices: <none>
0 shoveler:/# lvs
File descriptor 3 left open
File descriptor 4 left open
File descriptor 5 left open
File descriptor 6 left open
  LV   VG           Attr   LSize Origin Snap%  Move Log Copy%  Convert
  root vg_shoveler0 -wi-ao 1.00G                                      
  usr  vg_shoveler0 -wi-ao 5.00G                                      
  var  vg_shoveler0 -wi-ao 5.00G                                      
0 shoveler:/# pvs
File descriptor 3 left open
File descriptor 4 left open
File descriptor 5 left open
File descriptor 6 left open
  PV         VG           Fmt  Attr PSize   PFree  
  /dev/dm-0  vg_shoveler0 lvm2 a-   464.36G 453.36G
0 shoveler:/# cat /proc/swaps 
Filename				Type		Size	Used	Priority
/dev/mapper/sda2_crypt                  partition	979956	0	-1
/dev/mapper/sdb2_crypt                  partition	979956	0	-2
0 shoveler:/# 

Base System Installation Checklist:
[O] = OK, [E] = Error (please elaborate below), [ ] = didn't try it

Initial boot:           [O]
Detect network card:    [O]
Configure network:      [O]
Detect CD:              [ ]
Load installer modules: [O]
Detect hard drives:     [O]
Partition hard drives:  [E]
Install base system:    [O]
Clock/timezone setup:   [O]
User/password setup:    [O]
Install tasks:          [O]
Install boot loader:    [O]
Overall install:        [O]

Comments/Problems:

The partitioner seems to have a problem when placing LVM PVs on top of
encrypted volumes on top of RAID devices.  I saw no mention of this in
the errata (http://www.debian.org/devel/debian-installer/errata), but
i haven't tested it against a daily build yet either.

In this example, there is a 2-component RAID1 mirror /dev/md1 from
/dev/sda3 and /dev/sdb3.  /dev/mapper/md1_crypt is created by layering
an encrypted volume over /dev/md1, and configured via partman.

At this point, i was returned to the main partman screen, but if i
select the md1_crypt device to try to make it an LVM2 physical volume,
partman instead offers to put a partition table on the device, which
doesn't make any sense.  Perhaps dm-crypt over RAID devices are
somehow not being flagged as "loop" or something?  Partman seems to
work as i expect it to if it's just dm-crypt over a raw device.

I was able to work around this by getting as far as the above, opening
a shell in a separate session, doing pvcreate, vgcreate, and lvcreate
From the separate shell, and then restarting partman via "Go Back" and
"Partition Disks".  At that point, partman recognized the LVM pieces
and let me work with them as i intended.

FWIW, this arrangment (LVM over dm-crypt over RAID) seems like a
reasonable common one, so it should be easy to configure from d-i.

Thanks for making a very useful installer!

Regards,

        --dkg

PS Reports that seem related:

 http://bugs.debian.org/435834
 http://bugs.debian.org/303914 (supposed to be fixed years ago!)

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--- End Message ---
--- Begin Message --- 
We are closing this installation report for one of the following
reasons:
- it was reported with a pre-lenny version of Debian
  Installer.
- indications in the installation report give the feeling that
  the reported problem waslying in another software, unrelated to
  D-I, which we can't easily identify.
- indications in the installation report suggest that it may have been
  fixed in a more recent version of a D-I component
- it was successful and we forgot closing it..:-)
- it has no information we consider useful


The D-I team is currently in the process of cleaning out the old spool
of installation reports that haven't bene processed yet. 

In case you think that the problem you reported has chances to be
still present, please reiterate your installation test with
a more recent image of D-I, if you're in position of doing this.

You'll find daily builds at
http://www.debian.org/devel/debian-installer. We recommend you choose
the netboot image, in the "daily builds section", then choose to
install "squeeze" when prompted.

If some problems are found, please report them with a new bug sent
against installation-reports.

Many thanks for your understanding and your help improving Debian,
past and present.

--- End Message ---
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