Messages in this thread |  | | Date | Sat, 19 May 2001 16:57:15 +1000 | From | Andrew Clausen <> | Subject | Re: [RFD w/info-PATCH] device arguments from lookup, partion code inuserspace |
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Ben LaHaise wrote: > The work-in-progress patch for-demonstration-purposes-only below consists > of 3 major components, and is meant to start discussion about the future > direction of device naming and its interaction block layer. The main > motivations here are the wasting of minor numbers for partitions, and the > duplication of code between user and kernel space in areas such as > partition detection, uuid location, lvm setup, mount by label, journal > replay, and so on...
(1) these issues are independent. The partition parsing could be done in user space, today, by blkpg, if I read the code correctly ;-) (there's an ioctl for [un]registering partitions) Never tried it though ;-)
(2) what about bootstrapping? how do you find the root device? Do you do "root=/dev/hda/offset=63,limit=1235823"? Bit nasty.
(3) how does this work for LVM and RAID?
(4) <propaganda>libparted already has a fair bit of partition scanning code, etc. Should be trivial to hack it up... That said, it should be split up into .so modules... 200k is a bit heavy just for mounting partitions (most of the bulk is file system stuff). </propaganda>
(5) what happens to /etc/fstab? User-space ([u]mount?) translates /dev/hda1 into /dev/hda/offset=63,limit=1235823, and back?
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