D. Stimits, stimits@idcomm.com
"D. Stimits" wrote:
>
> I have been trying for a while now, without luck, to get a kernel with
> the SGI XFS system to boot as modules. I do fine if I make all scsi and
> XFS as non-modules, but modules fail for both scsi and XFS (I can make
> one or the other modular at a time, or both, it fails). According to
> what I see, this should not be happening, but it is. All messages
> indicate it was successful. I can also take the initial ramdisk image
> and gzip, and create a file that I mount via loopback to actually view
> the items it contains...no surprises, it has what it should have. But
> lilo is not using it (the messages from lilo claim to, but proof is in
> the failure). I'm going to list my output below, but the question will
> be, for an SMP scsi aic7xxx system, noapic, with ext2 compiled in, and
> /boot on its own ext2 partition (root is XFS), how is it possible that
> this output lies and does not install scsi or XFS modules? Big note:
> label with -2 is successful and has no modules; label with -3 fails, if
> any part of filesystem XFS or scsi is modular, and otherwise, there are
> no kernel configuration differences. Also, the "ramdisk_size" argument
> of the relevant kernel is due to the size of XFS, just to be sure. The
> output:
>
> lilo.conf:
> boot=/dev/sda
> map=/boot/map
> install=/boot/boot.b
> prompt
> timeout=50
> message=/boot/message
> linear
> vga=0x030c
> default=2.4.6-p1-xfs-2
> backup=boot.backup.when-2.4.6-pre1-xfs-3
>
> # FAILS, modular.
> image=/boot/vmlinuz-2.4.6-pre1-xfs-3
> label=2.4.6-p1-xfs-3
> initrd=/boot/ir-2.4.6-p1-xfs-3.img
> read-only
> root=/dev/sda6
> append="noapic ramdisk_size=16000"
>
> # WORKS, no relevant modules, despite a ramdisk.
> image=/boot/vmlinuz-2.4.6-pre1-xfs-2
> label=2.4.6-p1-xfs-2
> initrd=/boot/initrd-2.4.6-pre1-xfs-2.img
> read-only
> root=/dev/sda6
> append="noapic"
>
> Creating the ramdisk (tried both with SGI's mkinitrd.xfs, as well as
> regular mkinitrd):
> mkinitrd \
> -v \
> -f \
> --preload pagebuf \
> --preload xfs_support \
> --preload xfs \
> --with=scsi_mod \
> --with=sd_mod \
> --with=aic7xxx \
> /boot/ir-2.4.6-p1-xfs-3.img \
> 2.4.6-pre1-xfs-3
>
> The output of mkinitrd:
> Using modules: ./kernel/fs/pagebuf/pagebuf.o
> ./kernel/fs/xfs_support/xfs_support.o ./kernel/fs/xfs/xfs.o
> ./kernel/drivers/scsi/scsi_mod.o ./kernel/drivers/scsi/sd_mod.o
> ./kernel/drivers/scsi/aic7xxx/aic7xxx.o
> Using loopback device /dev/loop0
> /sbin/nash -> /tmp/initrd.sXOMy4/bin/nash
> /sbin/insmod.static -> /tmp/initrd.sXOMy4/bin/insmod
> `/lib/modules/2.4.6-pre1-xfs-3/./kernel/fs/pagebuf/pagebuf.o' ->
> `/tmp/initrd.sXOMy4/lib/pagebuf.o'
> `/lib/modules/2.4.6-pre1-xfs-3/./kernel/fs/xfs_support/xfs_support.o' ->
> `/tmp/initrd.sXOMy4/lib/xfs_support.o'
> `/lib/modules/2.4.6-pre1-xfs-3/./kernel/fs/xfs/xfs.o' ->
> `/tmp/initrd.sXOMy4/lib/xfs.o'
> `/lib/modules/2.4.6-pre1-xfs-3/./kernel/drivers/scsi/scsi_mod.o' ->
> `/tmp/initrd.sXOMy4/lib/scsi_mod.o'
> `/lib/modules/2.4.6-pre1-xfs-3/./kernel/drivers/scsi/sd_mod.o' ->
> `/tmp/initrd.sXOMy4/lib/sd_mod.o'
> `/lib/modules/2.4.6-pre1-xfs-3/./kernel/drivers/scsi/aic7xxx/aic7xxx.o'
> -> `/tmp/initrd.sXOMy4/lib/aic7xxx.o'
> Loading module pagebuf with options
> Loading module xfs_support with options
> Loading module xfs with options
> Loading module scsi_mod with options
> Loading module sd_mod with options
> Loading module aic7xxx with options
>
> The output of lilo -v -v:
> # lilo -v -v
> LILO version 21.4-4, Copyright (C) 1992-1998 Werner Almesberger
> 'lba32' extensions Copyright (C) 1999,2000 John Coffman
>
> Reading boot sector from /dev/sda
> Merging with /boot/boot.b
> Secondary loader: 11 sectors.
> Mapping message file /boot/message
> Message: 46 sectors.
> Boot image: /boot/vmlinuz-2.4.6-pre1-xfs-3
> Setup length is 9 sectors.
> Mapped 1607 sectors.
> Mapping RAM disk /boot/ir-2.4.6-p1-xfs-3.img
> RAM disk: 1304 sectors.
> Added 2.4.6-p1-xfs-3
> Boot image: /boot/vmlinuz-2.4.6-pre1-xfs-2
> Setup length is 9 sectors.
> Mapped 2274 sectors.
> Mapping RAM disk /boot/initrd-2.4.6-pre1-xfs-2.img
> RAM disk: 500 sectors.
> Added 2.4.6-p1-xfs-2 *
> boot.backup.when-2.4.6-pre1-xfs-3 exists - no backup copy made.
> Map file size: 34304 bytes.
> Writing boot sector.
>
> NOTE: It explicitly states "Mapping RAM disk
> /boot/ir-2.4.6-p1-xfs-3.img", the relevant ramdisk. It lied. How can it
> be? I've been going at this for a couple of weeks now with no success.
>
> After using gzip -dc on the .img, and mounting it via loopback, here is
> the content of linuxrc:
> #!/bin/nash
>
> echo "Loading pagebuf module"
> insmod /lib/pagebuf.o
> echo "Loading xfs_support module"
> insmod /lib/xfs_support.o
> echo "Loading xfs module"
> insmod /lib/xfs.o
> echo "Loading scsi_mod module"
> insmod /lib/scsi_mod.o
> echo "Loading sd_mod module"
> insmod /lib/sd_mod.o
> echo "Loading aic7xxx module"
> insmod /lib/aic7xxx.o
>
> Here is the tree of the whole initial ramdisk from loopback mount:
> .
> |-- bin
> | |-- insmod
> | `-- nash
> |-- dev
> | |-- console
> | |-- null
> | |-- ram
> | |-- systty
> | |-- tty1
> | |-- tty2
> | |-- tty3
> | `-- tty4
> |-- etc
> |-- lib
> | |-- aic7xxx.o
> | |-- pagebuf.o
> | |-- scsi_mod.o
> | |-- sd_mod.o
> | |-- xfs.o
> | `-- xfs_support.o
> |-- linuxrc
> |-- loopfs
> `-- sbin
> |-- bin -> bin
> `-- modprobe -> /bin/nash
>
> Something is wrong, it lacks scsi support if I make scsi a module, it
> lacks XFS support if I make that a module. For all intents and purposes,
> lilo totally ignored the ramdisk. Any possible clues at all how this
> could be?
>
> D. Stimits, stimits@idcomm.com
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