On 11/12/2015 12:28 PM, Jose R R wrote:
On Mon, Sep 21, 2015 at 7:49 AM, Edward Shishkin
<edward.shishkin@xxxxxxxxx> wrote:
On 09/21/2015 01:12 PM, Colin Watson wrote:
On Sun, Sep 20, 2015 at 07:40:37AM -0700, Jose R R wrote:
I have realized that although partman-reiser4 udeb enables Reiser4 to
be listed as an option during the Debian-Installer routine of a
netboot ISO image, the lack of support for reiser4 in GNU Parted
(Debian's libparted) prevents installation from the GUI interface.
It should be pretty easy to add that to parted, since nowadays the only
filesystem support it has is probing support. I suggest preparing a
patch against git://git.sv.gnu.org/parted.git master that adds the
ability to detect existing reiser4 partitions and sending it upstream;
it should only be on the order of a hundred lines.
Does anybody care to prepare the patch?
I am working on it Ed. I have been ironing out some wrinkles from the
last Reiser4 patch proposed several years ago in the GNU Parted
mailing lists. It's components and structure were basically cloned by
the initial btrfs patch submitted to Debian. autoreconf has been my
friend ;-)
I think we just need to a read a sector at REISER4_MAGIC_OFFSET
and check the magic string ("ReIsEr4"), see definition of the struct
reiser4_master_sb.
Please enlighten me with reference to its documentation -- online or
in the Reiser4 source code?
Alas, only source code..
In reiser4 kernel sources look for REISER4_MAGIC_OFFSET
and REISER4_SUPER_MAGIC_STRING.
In reiser4progs it is called REISER4_MASTER_OFFSET and
REISER4_MASTER_MAGIC respectively.
Thanks,
Edward.
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