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1.安装更新了debian squeeze 中的udev 重新生成了initramfs.img
depkg -reconfigure udev
2. 重启之后出现问题
mounting: mount /dev/sda1 on /root failed . No such device
mounting: /sys on /root/sys failed. No such file or directory
mounting: /proc ....
mounting: /dev ....
之后进入busy box，提示符如下
（initramfs）
3.
PS：
/dev/sda1 处是grub传递的启动参数（root=/dev/sda1),
尝试过root=UUID=XXXX root=(hd0,1) 均出现错误
mounting: mount /dev/disk/by-uuid/XXXX on /root failed.
mountint: mount (hd0,1) on /root failed.
/root 是当前文件系统根目录(initramfs的 / 目录)的一个文件夹(/root)
/sys /proc /dev 都是当前根目录的文件夹
grub 版本是 grub2 1.98 之前启动正常
4.尝试手动挂载 /dev/sda1 到 /root 目录成功
mount -r -t ext3 /dev/sda1 /root
之后手动挂载 /proc /sys /dev 到 /root/proc /root/sys /root/dev 都成功
mount /proc /root/proc
mount /sys /root/sys
mount /dev /root/dev
之后手动运行 chroot 到 /root 目录并运行 /etc/init.d/rc S 也成功
chroot /root /etc/init.d/rc S
但是还是在chroot 环境中，并且不能运行 init 0 或 init 6 （提示没有 /dev/initctl 文件
手动创建 之后 也还是不能运行 mkfifo /dev/initctl )
而且 stdin stdout stderr 没有和终端（屏幕） 关联（ 提示 不能打开 /dev/tty ),
没有 job control 功能
尝试重新生成 initramfs.img 文件，结果重启后更糟
dpkg -reconfigure udev
5. 网上查了资料后 尝试运行 /bin/run-init 导致 kenel panic
exec /bin/run-init
运行 /init ，同样导致 kenel panic
6.问题应该在 将硬盘根目录 挂载在 /root 目录下的步骤
手动挂载应该也可以，但是不知道 具体的步骤 命令
7. 求 怎么样从当前的环境（busy box) 进入正常的系统
还有 如何配置 initramfs.img 让它正确的 mount /dev/sda1 到 / (根目录）
initramfs 中的init文件如下
#!/bin/sh
echo "Loading, please wait..."
[ -d /dev ] || mkdir -m 0755 /dev
[ -d /root ] || mkdir -m 0700 /root
[ -d /sys ] || mkdir /sys
[ -d /proc ] || mkdir /proc
[ -d /tmp ] || mkdir /tmp
mkdir -p /var/lock
mount -t sysfs -o nodev,noexec,nosuid none /sys
mount -t proc -o nodev,noexec,nosuid none /proc
# Note that this only becomes /dev on the real filesystem if udev's scripts
# are used; which they will be, but it's worth pointing out
tmpfs_size="10M"
if [ -e /etc/udev/udev.conf ]; then
. /etc/udev/udev.conf
fi
mount -t tmpfs -o size=$tmpfs_size,mode=0755 udev /dev
[ -e /dev/console ] || mknod -m 0600 /dev/console c 5 1
[ -e /dev/null ] || mknod /dev/null c 1 3
> /dev/.initramfs-tools
mkdir /dev/.initramfs
# Export the dpkg architecture
export DPKG_ARCH=
. /conf/arch.conf
# Set modprobe env
export MODPROBE_OPTIONS="-qb"
# Export relevant variables
export ROOT=
export ROOTDELAY=
export ROOTFLAGS=
export ROOTFSTYPE=
export IP=
export break=
export init=/sbin/init
export quiet=n
export readonly=y
export rootmnt=/root
export debug=
export panic=
export blacklist=
export resume_offset=
# Bring in the main config
. /conf/initramfs.conf
for conf in conf/conf.d/*; do
[ -f ${conf} ] && . ${conf}
done
. /scripts/functions
# Parse command line options
for x in $(cat /proc/cmdline); do
case $x in
init=*)
init=${x#init=}
;;
root=*)
ROOT=${x#root=}
case $ROOT in
LABEL=*)
ROOT="${ROOT#LABEL=}"
# support any / in LABEL= path (escape to \x2f)
case "${ROOT}" in
*/*)
if command -v sed >/dev/null 2>&1; then
ROOT="$(echo ${ROOT} | sed 's,/,\\x2f,g')"
else
if [ "${ROOT}" != "${ROOT#/}" ]; then
ROOT="\x2f${ROOT#/}"
fi
if [ "${ROOT}" != "${ROOT%/}" ]; then
ROOT="${ROOT%/}\x2f"
fi
IFS='/'
newroot=
for s in $ROOT; do
newroot="${newroot:+${newroot}\\x2f}${s}"
done
unset IFS
ROOT="${newroot}"
fi
esac
ROOT="/dev/disk/by-label/${ROOT}"
;;
UUID=*)
ROOT="/dev/disk/by-uuid/${ROOT#UUID=}"
;;
/dev/nfs)
[ -z "${BOOT}" ] && BOOT=nfs
;;
esac
;;
rootflags=*)
ROOTFLAGS="-o ${x#rootflags=}"
;;
rootfstype=*)
ROOTFSTYPE="${x#rootfstype=}"
;;
rootdelay=*)
ROOTDELAY="${x#rootdelay=}"
case ${ROOTDELAY} in
*[![:digit:].]*)
ROOTDELAY=
;;
esac
;;
nfsroot=*)
NFSROOT="${x#nfsroot=}"
;;
ip=*)
IP="${x#ip=}"
;;
boot=*)
BOOT=${x#boot=}
;;
resume=*)
RESUME="${x#resume=}"
;;
resume_offset=*)
resume_offset="${x#resume_offset=}"
;;
noresume)
noresume=y
;;
panic=*)
panic="${x#panic=}"
case ${panic} in
*[![:digit:].]*)
panic=
;;
esac
;;
quiet)
quiet=y
;;
ro)
readonly=y
;;
rw)
readonly=n
;;
debug)
debug=y
quiet=n
exec >/dev/.initramfs/initramfs.debug 2>&1
set -x
;;
debug=*)
debug=y
quiet=n
set -x
;;
break=*)
break=${x#break=}
;;
break)
break=premount
;;
blacklist=*)
blacklist=${x#blacklist=}
;;
esac
done
if [ -z "${noresume}" ]; then
export resume=${RESUME}
else
export noresume
fi
depmod -a
maybe_break top
# Don't do log messages here to avoid confusing usplash
run_scripts /scripts/init-top
maybe_break modules
log_begin_msg "Loading essential drivers"
load_modules
log_end_msg
maybe_break premount
[ "$quiet" != "y" ] && log_begin_msg "Running /scripts/init-premount"
run_scripts /scripts/init-premount
[ "$quiet" != "y" ] && log_end_msg
maybe_break mount
log_begin_msg "Mounting root file system"
. /scripts/${BOOT}
parse_numeric ${ROOT}
maybe_break mountroot
mountroot
log_end_msg
maybe_break bottom
[ "$quiet" != "y" ] && log_begin_msg "Running /scripts/init-bottom"
run_scripts /scripts/init-bottom
[ "$quiet" != "y" ] && log_end_msg
# Move virtual filesystems over to the real filesystem
mount -n -o move /sys ${rootmnt}/sys
mount -n -o move /proc ${rootmnt}/proc
# Check init bootarg
if [ -n "${init}" ] && [ ! -x "${rootmnt}${init}" ]; then
echo "Target filesystem doesn't have ${init}."
init=
fi
# Search for valid init
if [ -z "${init}" ] ; then
for init in /sbin/init /etc/init /bin/init /bin/sh; do
if [ ! -x "${rootmnt}${init}" ]; then
continue
fi
break
done
fi
# No init on rootmount
if [ ! -x "${rootmnt}${init}" ]; then
panic "No init found. Try passing init= bootarg."
fi
maybe_break init
# don't leak too much of env - some init(8) don't clear it
# (keep init, rootmnt)
unset debug
unset MODPROBE_OPTIONS
unset DPKG_ARCH
unset ROOTFLAGS
unset ROOTFSTYPE
unset ROOTDELAY
unset ROOT
unset IP
unset blacklist
unset break
unset noresume
unset panic
unset quiet
unset readonly
unset resume
unset resume_offset
# Chain to real filesystem
exec run-init ${rootmnt} ${init} "$@" <${rootmnt}/dev/console >${rootmnt}/dev/console
panic "Could not execute run-init." |
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狗仔卡
发表于 2010-10-18 13:57:14
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楼主
发表于 2010-10-18 20:19:05