[Bug 474258] Re: Extremely dangerous! cryptswap killed my partition

[RW Penney]

This bug report really does not sound like it refers to the "cryptmount"
package.

Specifically, "cryptmount" does not use the /etc/crypttab file for any
purpose, nor does it include any utility called "cryptswap" (even though
if offers similar generic functionality).

More generally, it would appear that the problem is a side effect of
repartitioning the main hard disk and not updating configuration files
that refered to existing partitions that had been reassigned. It doesn't
sound realistic for repartitioning tools to attempt to inform all
applications that depend on a particular partition being available that
it has been renamed. This is surely the responsibility of the system
administrator.

Naturally, I commiserate with the bug-submitter about the possible loss
of 80GB of data.

However, the proposed solution of checking partition-types before
"mounting" as swap does not seem to offer an effective protection
against corrupting data held on raw devices, especially via loopback
devices which don't directly have "types" in the same way as disk
partitions. Similar risks would seem to apply to any system-management
tool which writes to raw devices.

-- 
Extremely dangerous! cryptswap killed my partition
https://bugs.launchpad.net/bugs/474258
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