Roman Mamedov posted on Fri, 28 Feb 2014 10:34:36 +0600 as excerpted: > But then as others mentioned it may be risky to use this FS on 32-bit at > all, so I'd suggest trying anything else only after you reboot into a > 64-bit kernel.
Based on what I've read on-list, btrfs is not arch-agnostic, with certain on-disk sizes set to native kernel page size, etc, so a filesystem created on one arch may well not work on another. Question: Does this apply to x86/amd64? Will a filesystem created/used on 32-bit x86 even mount/work on 64-bit amd64/x86_64, or does upgrading to 64-bit imply backing up (in this case) double-digit TiB of data to something other than btrfs and testing it, doing a mkfs on the original filesystem once in 64-bit mode, and restoring all that data from backup? If the existing 32-bit x86 btrfs can't be used on 64-bit amd64, transferring all that data (assuming there's something big enough available to transfer it to!) to backup and then restoring it is going to hurt! -- Duncan - List replies preferred. No HTML msgs. "Every nonfree program has a lord, a master -- and if you use the program, he is your master." Richard Stallman -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
