I have a use case in which I'm trying to use a fully automated install
using oem-config. I've taken Colin's branch and applied it to the
latest version of partman-auto in Precise and built a test version of
Ubiquity and have included it in a build.
The disk-recipe is written such that /home should be it's own partition.
The intention is that if the partition does not exist, then a new one
should be created. If the partition already exists, then it should be
kept and left untouched.
However, using the diff from Colin's branch, I have run into a few
issues and shortcomings.
1. When installing, Ubiquity would spin at the point that it starts to
partition disks. After much investigation, I found this is due to error at
this line in the diff:
partno="$(echo "$*" | sed '\''s/.*\$partno{ \([0-9][0-9]*\) }.*/\1/'\'')"
I ended up addressing this by changing it to:
partno="$(echo "$*" | sed 's/.*\$partno{ \([0-9][0-9]*\) }.*/\1/')"
I'm not sure if this really correct, but it seems to have fixed that
problem.
2. The next issue I ran into is if I set the $partno{ x } directive and the
partition does not exist, it goes into an infinite loop. I found the following
code block to be the culprit:
if [ -z "$partid" ]; then
logger -t partman-auto \
"Partition number $partno in recipe not found; creating new partition
instead"
continue
fi
I then fixed this loop by changing this block to this:
if [ -z "$partid" ]; then
logger -t partman-auto \
"Partition number $partno in recipe not found; creating new partition
instead"
scheme="$scheme_rest"
continue
fi
3. With the last change in place, the next issue I ran into is that if
the partition does not exist, then a new one will not be created.
4. Lastly, If I leave the $partno directive out and let partman-auto
create the partition and then add the $partno directive back in when the
partition exists, then the partition will be preserved, but it is not
added to /etc/fstab and so the partition is not automatically mounted
and used by the install and the running system.
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https://bugs.launchpad.net/bugs/195608
Title:
[Feature Request] enhance recipe format to allow specifying an
existing partition
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https://bugs.launchpad.net/dell/+bug/195608/+subscriptions
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