[gentoo-user] LVM, /usr and really really bad thoughts.

[Dale]

Howdy,

Well, this is what I am thinking about jumping into.  Ya'll ready for
this?  I'm thinking about redoing my partition layout.  I'm wanting to
keep / (root) on a normal ext4 file system.  I want to put /usr, /var,
/home, and such on LVM.  I been using that dracut thingy to build the
init thingy.  Sorry, I'm full of thingys tonight.  Maybe I need my meds?
 Anyway, the init thingy seems to be working, I think.  I asked a while
back how to tell for sure but it didn't get any replies so I am not real
sure it is.  I do get this tho:

root@fireball / # dmesg | grep init
[    0.000000] Command line: root=/dev/sda3 init=/sbin/init
[    0.000000] initial memory mapped : 0 - 20000000
[    0.000000] init_memory_mapping: 0000000000000000-00000000bfc91000
[    0.000000] init_memory_mapping: 0000000100000000-0000000440000000
[    0.000000] Kernel command line: root=/dev/sda3 init=/sbin/init
[    0.000000] Memory: 16387452k/17825792k available (6262k kernel code,
1052572k absent, 385768k reserved, 6647k data, 4852k init)
[    0.003045] Security Framework initialized
[    0.388120] SCSI subsystem initialized
[    0.410739] pnp: PnP ACPI init
[    0.787822] Trying to unpack rootfs image as initramfs...
[    0.867787] Freeing initrd memory: 5084k freed
[    0.880111] audit: initializing netlink socket (disabled)
[    0.880439] type=2000 audit(1331081750.879:1): initialized
[    0.912626] fuse init (API version 7.17)
[    1.258561] ehci_hcd 0000:00:12.2: init command 0010005 (park)=0
ithresh=1 period=512 RUN
[    1.270152] ehci_hcd 0000:00:13.2: init command 0010005 (park)=0
ithresh=1 period=512 RUN
[    1.583458] device-mapper: ioctl: 4.22.0-ioctl (2011-10-19)
initialised: dm-devel@××××××.com
[    4.258421] init-early.sh used greatest stack depth: 3696 bytes left
[    4.503735] init.sh used greatest stack depth: 3576 bytes left
root@fireball / # dmesg | grep dracut
[    3.018189] dracut: Checking reiserfs: /dev/sda3
[    3.018531] dracut: issuing reiserfsck -a  /dev/sda3
[    3.033879] dracut: Reiserfs super block in block 16 on 0x803 of
format 3.6 with standard journal
[    3.034463] dracut: Blocks (total/free): 4883760/2502678 by 4096 bytes
[    3.034781] dracut: Filesystem is clean
[    3.035210] dracut: Remounting /dev/sda3 with -o ro
[    3.082413] dracut: Mounted root filesystem /dev/sda3
[    3.158322] dracut: Switching root
root@fireball / #

And grub looks like this:

title=Initramfs-new_kernel
root (hd0,0)
kernel /boot/bzImage-3.2.2-1 root=/dev/sda3 init=/sbin/init
initrd /initramfs-3.2.2-1.img

Does anyone think dracut is not working?  I need to make certain before
diving into the next step.

I have a second drive that is plenty large enough.  Thanks Kashani.  I
plan to move everything currently to the larger drive then just sort of
do a fresh install on my regular OS drive.

One question I have right off the bat, how do I tell dracut to mount
/usr?  I think it used to have a usr USE flag but that seems to have
disappeared during a upgrade.  Is it magic?  Does it need to mount /var
as well for logging?

Just for the record, dracut is the only way I could get a init thingy to
build and let me boot.  I tried different ways and they just didn't
work.  At least I think dracut is working which is a good start.  ;-)

I hope there is a few dracut users on here that have at least /usr on a
separate partition.

Thanks.

Dale

:-)  :-)

-- 
I am only responsible for what I said ... Not for what you understood or
how you interpreted my words!

Miss the compile output?  Hint:
EMERGE_DEFAULT_OPTS="--quiet-build=n"