[linux-lvm] lvm on initrd
Arkadiusz Miskiewicz
arekm at pld-linux.org
Sun Jan 25 15:12:01 UTC 2004
Dnia sob 24. stycznia 2004 10:58, Luca Berra napisał:
> On Sat, Jan 24, 2004 at 01:37:35AM +0100, Arkadiusz Miskiewicz wrote:
> >Are there any plans to add makefile target which would produce very small
> > + features stripped down lvm binary with only two commands:
> >vgscan vgchange
> >for usage on initrd images?
>
> patches for lvm2 are:
> http://www.comedia.it/~bluca/cooker/lvm2/lvm2-2.00.08-7mdk/LVM2.2.00.08-die
>t.patch.bz2
Thanks, I've modified these for my needs.
http://cvs.pld-linux.org/cgi-bin/cvsweb/SOURCES/lvm2-initrd.patch?rev=1.1
Unfortunately this doesn't give any significant size drop:
lvm staticly linked with uClibc and device-mapper lib with all features
-rwxr-xr-x 1 misiek users 555815 2004-01-25 21:05 initrd-lvm
lvm staticly linked with uClibc and device-mapper lib using my patch above (so
only vgscan and vgchange functions available)
-rwxr-xr-x 1 root root 482428 2004-01-25 20:51 initrd-lvm
How these sizes look with dietlibc?
Also some problems with lvm way of checking what command user wants based on
argv[0] came out:
[root at arm misiek]# /sbin/initrd-lvm
No such command. Try 'help'.
[root at arm misiek]# ln -s /sbin/initrd-lvm lvm
[root at arm misiek]# ./lvm
Please supply an LVM command.
Available lvm commands:
Use 'lvm help <command>' for more information
help Display help for commands
vgchange Change volume group attributes
vgscan Search for all volume groups
version Display software and driver version information
It would be much better if when argv[0] is not known internally for lvm then
work as argv[0] = lvm.
> L.
--
Arkadiusz Miśkiewicz CS at FoE, Wroclaw University of Technology
arekm.pld-linux.org, 1024/3DB19BBD, JID: arekm.jabber.org, PLD/Linux
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