Ubiquity crash on step 4 (partitioning)

I've been following the Bootable USB Thumb Drive with “Full” Disk Encryption how-to to install Backtrack 4 on my Asus eeepc 900 and had no problem creating a working USB thumb drive. I repeated the procedure to install it (and encrypt it) on my SSD but Ubiquity crash when I reach step 4. I can see the partitioning screen for a second and it just crash.

Code:

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bt ubiquity[8039]: Device /dev/sdb1 not found in os-prober output
bt ubiquity[8039]: Switched to page stepPartAuto
bt ubiquity[8039]: Exception in GTK frontend (invoking crash handler) :
bt ubiquity[8039]: Traceback (most recent call last):
bt ubiquity[8039]:      File "/usr/lib/ubiquity/ubiquity/segmented_bar.py", line 500, in do_expose_event
bt ubiquity[8039]:          cr.paint()
bt ubiquity[8039]: MemoryError
bt ubiquity[8039]:
bt ubiquity: /lib/partman/lib/base.sh: line 146:
/lib/partman/automatically_partition//do_option: no such file or directory

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I since tried without encryption (simply running the install.sh script) and I encounter the same problem.

Any idea on what to try next?? :)

I'm having the same issue, except I'm installing to usb and haven't had a successful install yet. Can anyone help?

I have the same problem and also have a Asus Eee 900.
Also I can't seem to find any solution on this on the interwebs :S

I ended up wiping out the drive manually and Ubiquity magically worked after that. I still don't know what was causing the problem though!

I have the same prob so i'm trying a different way to install BT4....exactly how did you resolve it? :D wiped out means completly erased your ssd?

Yep, I deleted all partitions and formatted it. Everything worked after that. Since then, I did a reinstall (as I didn't encrypt it the first time) and I didn't encounter the same problem. I'll probably never know what the problem was, the debug wasn't very helpful and my programming skills not up to scratch :)

The fact is i cant delete all since i have my wxp installed on the first partition :( any ideas?

You need to give me a bit more information, what is the state of your disk at the moment? How many partitions? Are they formatted?

I would try to delete all partitions other than your XP partition, then launch Ubiquity. If that doesn't work, manually create and format all partitions and try again.

I have 120GB HDD....60 are partitioned with wxp and the other 60gb are unformatted...i tried to format 25gb in NTFS but BT freeze..now i'm unformatted again and i'm having some prob to boot BT4 too.. :V squashfs error

It seems that Ubiquity is having problems with USB drives, at least in our cases. I re-ran the installer with my USB drive unplugged, and was able to get to step 4. I'm not sure how this can be fixed.