[projects/geninitrd.git] / lvm.todo

Thing to implement for using LVM on rootfs:
- if rootfs device have unsupported name then check if this is block device
  with major 58
- check PVDEVICES and if empty do:
-- run lvdisplay to determine volumen group (vg)
-- run pvscan to find physical volumens (pv) belong to determined vg 
   (better write help application to parse /etc/lvmtab.d/[vgname] or
   /etc/lvmconf/[vgname].conf - ask malekith for help)
- for all finded pvs find needed modules (support all devices that are
  supported for rootfs device)
- add to startup:
mount /proc
mount /tmp
mkdir /tmp/lvmtab.d
mkdir /tmp/lvmconf
lvm-initrd vgscan
lvm-initrd vgchange -a y
umount /tmp
umount /proc

NOTE: vgscan need writable /etc/lvmtab and /etc/lvmtab.d/. Distrib kernel are
builded only with romfs, so mount tmpfs on /tmp and symlink writable files from
original location to /tmp. 
But tmpfs are only in kernel series 2.4.x or later.
Commit	Line	Data
41b2b327 AF	1	Thing to implement for using LVM on rootfs:
	2	- if rootfs device have unsupported name then check if this is block device
	3	with major 58
	4	- check PVDEVICES and if empty do:
	5	-- run lvdisplay to determine volumen group (vg)
	6	-- run pvscan to find physical volumens (pv) belong to determined vg
	7	(better write help application to parse /etc/lvmtab.d/[vgname] or
	8	/etc/lvmconf/[vgname].conf - ask malekith for help)
	9	- for all finded pvs find needed modules (support all devices that are
	10	supported for rootfs device)
	11	- add to startup:
	12	mount /proc
	13	mount /tmp
	14	mkdir /tmp/lvmtab.d
	15	mkdir /tmp/lvmconf
	16	lvm-initrd vgscan
	17	lvm-initrd vgchange -a y
	18	umount /tmp
	19	umount /proc
	20
	21	NOTE: vgscan need writable /etc/lvmtab and /etc/lvmtab.d/. Distrib kernel are
	22	builded only with romfs, so mount tmpfs on /tmp and symlink writable files from
	23	original location to /tmp.
	24	But tmpfs are only in kernel series 2.4.x or later.