On 8/27/15 1:58 PM, Theodore Ts'o wrote: > I suspect that would fill Eric's heart with horror, but the ability to > migrate the root file system from ext2 to ext3 while it was mounted > (i.e., just run "tune2fs -O has_journal /dev/rootfs" and reboot) was > something Stephen Tweedie added, so at least at one point Red Hat was > more adventurous about what it would support in terms of file system > upgrades without using mkfs. :-) > > - Ted Oh, it doesn't fill me with *that* much horror. ;) TBH, my big problem with the ext3->ext4 "migration" is that you wind up with a mongrel filesystem which mkfs.ext4 would never create, populated with files of varying runtime limitations and capabilities, depending on whether they were created before or after the "migration." Adding a journal and rebooting at least gets you to a pretty standard, predictable, and tested result. ;) -Eric -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
