On Fri, Jun 18, 2004 at 04:42:43PM -0700, Brandon Darbro wrote: > Huh? EVMS or LVM2 has a method of adding a writable layer to read only dasd?
EVMS supports writable snapshots, using copy-on-write from an EVMS volume. I haven't tried it with read-only DASD, but in theory it should be possible for it to be used this way. The act of creating the snapshot might require writing to the original volume in order to update the volume metadata. Ask on the EVMS mailing list. This is quite a lot closer to what you want than looking at UML; UML's COW feature is part of the ubd driver and is quite inapplicable to non-ubd devices, and what's more, UML doesn't work on s390. -- - mdz ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
