why not have the disk manager ask if you want to install it if you try to
create a raid and dont have mdadm??
its confusing and makes it look broken.
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Brian Murray, yes I know its about the gnome-disk-utility, and that is
where I get the problem.
Whilst the alternative install doesn't have a GUI, what on earth has
that to do with this error?
I was using the Disk Utility post install of the OS.
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Jason this bug is about gnome-disk-utility, a GUI application for
managing disks, not have having a dependency on mdadm so that one can
create RAID arrays. The alternate installer doesn't have a GUI and
doesn't include gnome-disk-utility so I'm fairly certain this isn't your
bug. The alternate
I have this problem after doing an install from the alternative CD 11.10
so it'snot just isolated to the live CD.
mdadm may well have been removed for speed reasons, but then Disk
Utility needs to fail gracefully and not as it does show that mdadm
completed successfully.
Please don't be fooled
My live system froze after reporting the 'mdadm not found' error. This
happened twice. The first time, it happened before I was able to read
the error message. The second time, it froze as I was scrolling the
error message in to view. This issue deserves some attention.
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RAID creation
While most people who are trying to create a RAID array are probably
perfectly capable of figuring out the problem, it's just the usability
is terrible and reflects poorly on the program. It would seem
reasonable for the program to validate that the user has the necessary
has software installed
ok, so install mdadm : sudo apt-get install mdadm
BTW, if you have started using the Palimpsest Disk Utility, your disks may
already have been partitioned for the RAID. If so, you can't use Palimpsest to
remove the partitions.
Use Gparted to clean up the mess and remove any partition.
Then go
We deliberately removed mdadm from the default installation several
releases ago; it makes the boot process slower and more complex, and for
most people without RAID arrays it's just a waste of disk space. Of
course, it's installed if you have a RAID array available during
installation. The
After further investigation, it appears as though this affects the Live
CD only. The alternate install works perfectly with RAID array creation
even when Ubuntu is installed.
It appears as though the Live CD does not officially support software
RAID array creation, see:
