On Fri, Mar 9, 2012 at 8:48 PM, Dale <rdalek1...@gmail.com> wrote: > 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-de...@redhat.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.
I keep my /usr partition in /, but seeing the modules from dracut, the "magic" happens at: /usr/lib/dracut/modules.d/98usrmount/mount-usr.sh Basically, it seems that if /usr is specified in /etc/fstab, then dracut will mount it. It says nothing about LVM, but that is taken care of in the scripts at: /usr/lib/dracut/modules.d/90lvm I'm not familiar with LVM, but it seems simple enough. And you can create and modify your own dracut modules, of course. Regards. -- Canek Peláez Valdés Posgrado en Ciencia e Ingeniería de la Computación Universidad Nacional Autónoma de México
