-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 5/21/14, 11:14 PM, Roman Mamedov wrote: > On Wed, 21 May 2014 21:14:07 -0500 > Eric Sandeen <sand...@redhat.com> wrote: > >>>> (Random aside: why does btrfs support online fs relabeling, anyway?) >>>> >>>> -Eric >>> >>> Online you mean when mounted ? >> >> Yep - I'm just not sure who would ever want to do that. >> >> Aren't labels primarly used for mounting, during the mount process? > > Well if you want to change the label of your root filesystem, how else would > you go about that? If Btrfs did not support this, then only while booted from > a > rescue LiveCD? That's quite a bit more involved and not even always feasible > in case of remote machines with no IPMI or similar management. > > Extfs supports online change of the volume label as well, albeit probably not > via a sysfs file, but with the tune2fs utility: > > tune2fs -L <name> /dev/blockdevice
Yeah, that just writes directly to the block device. :) But ok, I guess relabeling root is a fair case. - -Eric -----BEGIN PGP SIGNATURE----- Version: GnuPG/MacGPG2 v2.0.17 (Darwin) Comment: GPGTools - http://gpgtools.org Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQIcBAEBAgAGBQJTfiCAAAoJECCuFpLhPd7gAHoP/AlFeFJ8Om0wKxcnuolG7o4G 9AHRu4Jto8JTHWToOwmtJAcWQFS+fJtUF009cl118eb+vUOoWFdTDK3H8UiC6uwM /OcFaeDRJOg4JEA8OBaXihCoG1JOPU2ygCezyg59mbHV6SFIYy4kDgqzfFm6qcaC 8vqenmPkGhYiIadvPeDYctIPGS6DquLjxKk/xI52gLwP6so2eJ9nH4jmO7K1gF6n dRa7zfCDpcMq5AqiJW5XZWBfmuNH5etGgJW8J4JpuOSzYPECwuHzcXP3LZny/xUP t15LxzUR+0SZg04zJYXY5YoytZaz6mfk0jOksggeY9GiDenlWUZhDi/QexIhc2ZL ZuHt8WDWDtIqt4D84GE/9QlI5tVU+F8FkJBnPSS+ybP8YSShNWmIdKLVtn+4g8/x YVC6PnUyYvLj/1ZSJTGUQtJZkSjsfkRISk3ygVz1NJQG75euRL2gxmZkn11497rU rc4a+yZQ3Gxe0cOn1J8RzN9dDQ3iIQnM7Fn25vFdn/uN1dPuQuDP3zy9MG4WJD8e 3xX1HNiXePgZGN5bhaCLXqAER6E4Xigd5mcdjuXZvmkexEkTRn3xOcXuoDhU8v2i Oloroh09tpMmzw4sNyaeqw11oIkBcUEvY/7ggqYEtZcOAtnFuyot9y5LUIgNmtBM Sas6/mxzXeTPCApF1o1a =sUri -----END PGP SIGNATURE----- -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
