[Bug 349469] Re: debconf: DbDriver "config": /var/cache/debconf/config.dat is locked by another process: Resource temporarily unavailable

[codeslinger]

I just hit this bug while installing 12.04 from a flashdrive

basically it was a simple case of user error, however it is also a
program error too, because it is not effective for a program to crash as
a means to tell the user that they did something wrong.

if a program has a choice between crashing or checking to see if a file
is locked, then it should certainly do the check...  this allows the
program to exit gracefully and clean-up and most especially it allows
for proper informational notices.  The alternative is that the user is
left perplexed, the bug database gets flooded, and users are forced to
reboot because of a simple error....

Steps to Repro  (this is only one of many possible scenarios)

1) Start the Installer (ubiquity)

2) While on the "Welcome" choose language screen, open a terminal

3) sudo  apt-get install lm-sensors  (or any other not currently
installed program)

result: crash

expected: error message telling me the resource is locked

note: after quiting the installer...  find that system is in unusable
state and must reboot

someone needs to give that program a dose of Ubuntu Community Spirit
:-)

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https://bugs.launchpad.net/bugs/349469

Title:
  debconf: DbDriver "config": /var/cache/debconf/config.dat is locked by
  another process: Resource temporarily unavailable

Status in Debconf:
  New
Status in “aptdaemon” package in Ubuntu:
  Confirmed
Status in “debconf” package in Ubuntu:
  Triaged

Bug description:
  Upgrading packages that use debconf sometimes fail with the following
  error:

  debconf: DbDriver "config": /var/cache/debconf/config.dat is locked by
  another process: Resource temporarily unavailable

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