linux – 如何使用mkinitrd将一个模块添加到initrd

我已经将 Linux(Fedora)服务器系统从IDE驱动器克隆到SATA驱动器,但是它无法启动,在交换机根目录时失败.我在目标驱动器上做了一个干净的安装,并通过检查initrd文件了解到在SATA驱动器上安装fedora时它包含了ahci模块,当我在安装工作期间没有SATA驱动器时没有使用系统.

所以我想运行mkinitrd来构建新的initrd,和旧的一样,但添加ahci模块(可能作为预加载)

我做了太多的猜测,所以我想在这里提出这个问题:
什么是从现有的initrd构建新initrd的最简单方法,只需添加一个模块?

这是两个init文件的差异

diff /media/disk/SATA_initrd/initrd/init /media/disk/PATA_initrd/initrd/init 
50a51,52
> echo "Loading crc-t10dif module"
> modprobe -q crc-t10dif
57,60d58
< echo "Loading ahci module"
< modprobe -q ahci
< echo Waiting for driver initialization.
< stabilized --hash --interval 250 /proc/scsi/scsi
66a65,68
> echo "Loading pata_amd module"
> modprobe -q pata_amd
> echo Waiting for driver initialization.
> stabilized --hash --interval 250 /proc/scsi/scsi

和我要修改的initrd的init文件.

#!/bin/nash

mount -t proc /proc /proc
setquiet
echo Mounting proc filesystem
echo Mounting sysfs filesystem
mount -t sysfs /sys /sys
echo Creating /dev
mount -o mode=0755 -t tmpfs /dev /dev
mkdir /dev/pts
mount -t devpts -o gid=5,mode=620 /dev/pts /dev/pts
mkdir /dev/shm
mkdir /dev/mapper
echo Creating initial device nodes
mknod /dev/null c 1 3
mknod /dev/zero c 1 5
mknod /dev/systty c 4 0
mknod /dev/tty c 5 0
mknod /dev/console c 5 1
mknod /dev/ptmx c 5 2
mknod /dev/tty0 c 4 0
mknod /dev/tty1 c 4 1
mknod /dev/tty2 c 4 2
mknod /dev/tty3 c 4 3
mknod /dev/tty4 c 4 4
mknod /dev/tty5 c 4 5
mknod /dev/tty6 c 4 6
mknod /dev/tty7 c 4 7
mknod /dev/tty8 c 4 8
mknod /dev/tty9 c 4 9
mknod /dev/tty10 c 4 10
mknod /dev/tty11 c 4 11
mknod /dev/tty12 c 4 12
mknod /dev/ttyS0 c 4 64
mknod /dev/ttyS1 c 4 65
mknod /dev/ttyS2 c 4 66
mknod /dev/ttyS3 c 4 67
echo Setting up hotplug.
hotplug
echo Creating block device nodes.
mkblkdevs
echo "Loading ehci-hcd module"
modprobe -q ehci-hcd
echo "Loading ohci-hcd module"
modprobe -q ohci-hcd
echo "Loading uhci-hcd module"
modprobe -q uhci-hcd
mount -t usbfs /proc/bus/usb /proc/bus/usb
echo "Loading ext3 module"
modprobe -q ext3
echo "Loading crc-t10dif module"
modprobe -q crc-t10dif
echo "Loading scsi_mod module"
modprobe -q scsi_mod
echo "Loading sd_mod module"
modprobe -q sd_mod
echo "Loading libata module"
modprobe -q libata
echo "Loading ata_generic module"
modprobe -q ata_generic
echo "Loading pata_acpi module"
modprobe -q pata_acpi
echo Waiting for driver initialization.
stabilized --hash --interval 250 /proc/scsi/scsi
echo "Loading pata_amd module"
modprobe -q pata_amd
echo Waiting for driver initialization.
stabilized --hash --interval 250 /proc/scsi/scsi
echo "Loading dm-mod module"
modprobe -q dm-mod
echo "Loading dm-mirror module"
modprobe -q dm-mirror
echo "Loading dm-zero module"
modprobe -q dm-zero
echo "Loading dm-snapshot module"
modprobe -q dm-snapshot
echo Making device-mapper control node
mkdmnod
modprobe scsi_wait_scan
rmmod scsi_wait_scan
mkblkdevs
echo Scanning logical volumes
lvm vgscan --ignorelockingfailure
echo Activating logical volumes
lvm vgchange -ay --ignorelockingfailure  VolGroup00
resume /dev/VolGroup00/LogVol01
echo Creating root device.
mkrootdev -t ext3 -o defaults,ro /dev/VolGroup00/LogVol00
echo Mounting root filesystem.
mount /sysroot
echo Setting up other filesystems.
setuproot
loadpolicy
echo Switching to new root and running init.
switchroot
echo Booting has failed.
sleep -1

解决方法

您无需担心所有已安装的模块.首先,启动进入救援盘.
chroot /mnt/sysimage      # this is for Fedora specifically - YMMV
cp /boot/initrd-2.26.27.24-78.2.53-fc9.x86_64.img \
     /boot/initrd-2.26.27.24-78.2.53-fc9.x86_64.old
mkinitrd --preload ahci -f /boot/initrd-2.26.27.24-78.2.53-fc9.x86_64.img \
     2.26.27.24-78.2.53-fc9.x86_64

exit and reboot the system.

华而不实的

在“驱动程序初始化”之前,您不必担心所有的modprobes

ignore  --> use the --preload *MODNAME* in the arguments to mkinitrd
ignore  --> for all the rest use --with

只需添加–preload ahci

有用的网址:

> http://www.mail-archive.com/fedora-package-announce@redhat.com/msg21104.html
> http://www.justlinux.com/forum/showthread.php?p=886204

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