There's a lot going on in this bug but I've just uploaded a change to
casper that fixes at least something in the right area. With this
change, I can run this script on an ISO:
#!/bin/bash
ISO=$1
truncate -s 1G $ISO
maxend=$(sfdisk $ISO -l -q -o end | tail -n +2 | sort -n | tail -n1)
start=$(((maxend + 1 + 0xfff) & ~0xfff))
echo "start=$start" | sfdisk $ISO -a -q
dev=$(sudo losetup -Pf --show $ISO)
sudo mkfs -L casper-rw -t ext4 ${dev}p3
sudo losetup -d $dev
And then boot it attached to a VM with "persistent" on the command line
and persistence seems to work as far as I can tell. What else is broken?
:)
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https://bugs.launchpad.net/bugs/1489855
Title:
Change to mount sequence order breaks persistence on casper-rw
partitions
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