Ok, i've spent 3 days now trying to get persistent storage on an Ubuntu USB
installation to work.
It fails on karmic too....
Not even when using the initrd.gz + /etc/init.d/casper update listed in
this thread, do i get it to work :((
The basic install and startup of Ubuntu from USB works, but saving
_anything_ (including only a change of desktop background), results in a
failure to boot up after restart.
The error consistently seems to be these write-errors on shutdown of the USB
installation:
* possibility 1:
Buffer : I/O error @somesector (repeated slightly more than a dozen
times on different sectors)
* possibility 2:
end_request : I/O error (also slightly more than a dozen times on
different sectors)
I tried:
* Creating with usb-creator-gtk (Administration -> USB Startup Disk Creator),
on Ubuntu 9.04 jaunty, to a good 4Gb USB key, using the latest .iso for 9.04 to
install:
* Using persistent storage at all: fail.
* Using a persistent space of only 300Mb: fail.
* Disabling HAL polling before reboot on first change of running Ubuntu
USB : fail
* (Tag 1) Updating the initrd.gz before booting from the usb-key with
the one provided by Steve in this thread (comment #60), then when booted
perform the update described in comment #66:
Only 2 write-errors on shutdown of USB installation, but fails
to boot next time round.
* Creating with usb-creator-gtk on Ubuntu 9.10 Karmic, to the same 4Gb USB key,
using either 9.04 iso for install or even the 9.10-beta.iso:
* Fail, error remains.
* Using (Tag 1): Fail.
* Creating with "Portable Linux" (http://rudd-o.com/new-projects/portablelinux):
* Using ubuntu 9.04 install iso: Fail.
--
casper-rw fs not cleanly unmounted on persistent live USB shutdown
https://bugs.launchpad.net/bugs/125702
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