This issue has sat incomplete for more than 60 days now. I'm going to
close it as invalid. Please feel free re-open if this is still an issue
for you. Thank you.
** Changed in: ubiquity (Ubuntu)
Status: Incomplete => Invalid
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know.
** Changed in: ubiquity (Ubuntu)
Status: Confirmed => Incomplete
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The attitude that RAID and RAID+LVM is not worthy of support is silly.
There is a reason why so many people used the Alternate CDs. In the corporate
environment protecting work on peoples computers through the use of RAID1 is a
sensible option.
12.04 LTS Alternate CD works perfectly. Yet the
Desktop images do have mdadm and lvm2 packages installed, and it does
have support to set up full disk encryption and lvm2. Installing RAID on
typical desktop configurations is uncommon. But you can proceed to do so
by manually assembling RAID devices before starting ubiquity in Try
Ubuntu
On 26 March 2013 20:34, Nicolas Delvaux 44...@bugs.launchpad.net wrote:
Will it be possible to install Raring with RAID?
Yes, using server cd or mini.iso or pxe boot. All of them offer to
install ubuntu-desktop as well as the default environment.
Regards,
Dmitrijs.
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Will it be possible to install Raring with RAID?
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https://bugs.launchpad.net/bugs/44609
Title:
RAID not implemented (use alternate CD instead)
To manage notifications about
I guess this also affects Ubuntu 13.04 Raring Ringtail.
Is this bug beeing worked on? Regarding the Blueprint, there seems to be
not much activity:
https://blueprints.launchpad.net/ubuntu/+spec/foundations-r-ubiquity-
raid
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(wontfixing for quantal, for blueprint tracking)
** Also affects: mdadm (Ubuntu Quantal)
Importance: Wishlist
Status: Invalid
** Also affects: ubiquity (Ubuntu Quantal)
Importance: Wishlist
Status: Confirmed
** Changed in: ubiquity (Ubuntu Quantal)
Status: Confirmed =
Ubuntu 12.04 Desktop can be installed into Linux Software RAID (md)
storage with these steps:
1. I've installed mdadm in live system, then created Linux Software RAID
with this command:
sudo mdadm --create /dev/md0 --level=1 --raid-disks=2 /dev/sda1
/dev/sdb1
then formated /dev/md0 with ext4
** Changed in: mdadm (Ubuntu)
Status: Incomplete = Invalid
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Title:
RAID not implemented (use alternate CD instead)
To manage
Thanks Tom for those corrections.
One thing that hasn't been clear in the discussion so far is the
distinction between recognizing an existing RAID setup, and creating a
new RAID setup. The kind of setups Ubiquity can create could be a subset
of the kind of existing setups it can recognize.
** Attachment added: design sketches
https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/44609/+attachment/2228167/+files/p2.png
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2. http://docs.fedoraproject.org/en-
US/Fedora/13/html/Installation_Guide/Create_Software_RAID-x86.html says
that RAID 1 requires a minimum of two partitions, but that RAID 5
requires a minimum of three, and RAID 6 and RAID 10 require a minimum of
four.
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Normal RAID 10 requires at least 4, but Linux MD RAID 10 only needs two
(and can work on uneven numbers like 3), and it has the option of
'near', 'offset', and 'far' layouts. I'm not sure how much of that, if
any, you'd want to put in the standard installer.
See http://en.wikipedia.org/wiki/Non-
I'm currently designing a graphical interface for setting up RAID in the
installer. Thanks to James Troup for helping me understand the
following, but any mistakes are my fault; please provide any corrections
in plain English.
1. The types of RAID it makes most sense to offer in a graphical
Point three isn't true; I've had setups with sda1+sdb1 forming a RAID1
pair and sda2+sdb2 forming a RAID0 pair
Point five isn't true for RAID5, where the capacity is (minimum size of
devices) * (number of devices - 1)
I would just offer RAID1 as an option, and require selection of two
drives on
Thanks for the bugreport and the debdiff. AFAICS (please note that I'm
not a mdadm expert) the patch generates a mdadm config on the target
filesystem. This should actually no longer be needed in order to get a
booting system.
From the mdadm hook script for initramfs (in natty):
Just for reference, this mdadm change was part of:
mdadm (2.6.7.1-1ubuntu16) maverick; urgency=low
* debian/initramfs/hook: Added following code (invoked on update-initramfs)
(LP: #617725):
- create a mdadm.conf if it is not found in /etc and copy it in initramfs
- update an
is that still an issue? could somebody review the change?
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** Tags added: patch
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** Changed in: mdadm (Ubuntu)
Importance: Undecided = Wishlist
** Changed in: mdadm (Ubuntu)
Status: New = Confirmed
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Bugs,
Tormod Volden : I'm not a expert, but I think that mdadm is necessary
for linux software raid (not fakeRaids). I would not be able to confirm
you if ubuntu can be installed on fakeRaids controller from liveCD at
the moment, but it is not possible at the time with linux software raid.
The alternate
Sorry, I didn't read the whole report, only the bits with my name on it,
and thought for some reason this was about dmraid. You're likely right
that mdadm is needed to boot from software raids. I have no software
raid so I can not test this.
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Basically, software raid does not require special hardware so this
should be easily reproducible on any computer. All that is needed is a
LiveCD that has fixed mdadm pre-installed, at least two partitions with
raid flag and a command like this one to create the raid device : mdadm
--create
Colin Watson or Tormod Volden : Here is a debdiff that add a target-
config script to mdadm package, which prevent the system from halting on
busybox at reboot after installing to a RAID device with ubiquity. This
script does what I said earlier (update mdadm.conf on target and update-
initramfs
Saïvann, I haven't done a fresh installation with dmraid for a long
time, but I hope to get to trying it next week. I can test your patch
then. But why is mdadm needed to boot the dmraid system?
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You received
Colin Watson and Tormod Volden :
This can be enabled in karmic since we now have grub2 which support direct raid
boot.
Making it possible to install ubuntu on raid requires very little changes now :
1. Install mdadm by default into the livecd environment. (676 Kb)
2. Patch ubiquity to run these
vote +1
Saïvann Carignan wrote:
Colin Watson and Tormod Volden :
This can be enabled in karmic since we now have grub2 which support direct
raid boot.
Making it possible to install ubuntu on raid requires very little changes now
:
1. Install mdadm by default into the livecd
My comment above is now obsolete, it is just that you have to tell ubiquity
that you are using dmraid (there will be a UI for this later) by running these
commands beforehand:
sudo mkdir /var/lib/disk-detect
sudo touch /var/lib/disk-detect/activate_dmraid
Then ubiquity will only show the
you should manually click on *each* swap partition, which is included
in RAID and choose do not use partition.
Testing Jaunty Alpha-6: If you select do not use partition, the label
changes from swap to linux-swap and the summary afterwards says it
is going to make changes to the partitions of
It seems ubiquity from Ubuntu Hardy 8.04.1 crashes when using RAID partition
for swap :(
Ubiquity tries automatically use RAID components - /dev/sda3 and /dev/sdb3 for
swap, so, in manual partitioning step you should manually click on *each* swap
partition, which is included in RAID and choose
** Also affects: ubiquity (Baltix)
Importance: Undecided
Status: New
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This also/still affects Hardy, but there is a work-around.
First, once the Live CD has started, open a terminal and run:
sudo su
sed -i 's,^\( *grep -v '^/dev/md' |\),#\1,' /lib/partman/init.d/30parted | grep
'/dev/md'
This will allow Ubiquity's partman to report /dev/md* devices by
commenting
** Summary changed:
- (K)Ubuntu Live apparently does not allow installation on RAID1
+ RAID not implemented (use alternate CD instead)
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