On Mon, 6 Nov 2000, Richard Rak wrote:
> I don't have any problems building initrd images here (using
> RAMDISKs). Can I take a look at your scripts and see what is going on?
>
Here is the script to boot off a hard disk.
#!/bin/bash
#
# This installs the kernel on a system that requires an initial
# RAM Disk and with an initial SCSI driver.
#
export VER=$1
RAMDISK_DEVICE=/dev/ram0
RAMDISK_MOUNT=/tmp/Ramdisk
DISKSIZE=1500
SYS=/usr/src/linux-${VER}/arch/i386/boot/bzImage
MAP=/usr/src/linux-${VER}/System.map
if [ "$1" = "" ] ;
then
echo "Usage:"
echo "make_ramdisk <version>"
exit 1
fi
if [ ! -f ${SYS} ] ;
then
echo "File not found, ${SYS}"
exit 1
fi
if [ ! -f ${MAP} ] ;
then
echo "File not found, ${MAP}"
exit 1
fi
if ! depmod -a ${VER} ;
then
echo "This won't work! There are some unresolved symbols."
exit 1
fi
umount ${RAMDISK_DEVICE} 2>/dev/null
umount ${RAMDISK_MOUNT} 2>/dev/null
mkdir ${RAMDISK_MOUNT} 2>/dev/null
dd if=/dev/zero of=${RAMDISK_DEVICE} bs=1k count=${DISKSIZE}
mke2fs -q ${RAMDISK_DEVICE} ${DISKSIZE}
mount ${RAMDISK_DEVICE} ${RAMDISK_MOUNT}
rmdir ${RAMDISK_MOUNT}/lost+found
mkdir ${RAMDISK_MOUNT}/dev
mkdir ${RAMDISK_MOUNT}/etc
mkdir ${RAMDISK_MOUNT}/lib
mkdir ${RAMDISK_MOUNT}/bin
mknod ${RAMDISK_MOUNT}/dev/null c 1 3
mknod ${RAMDISK_MOUNT}/dev/ram0 b 1 0
mknod ${RAMDISK_MOUNT}/dev/ram1 b 1 1
mknod ${RAMDISK_MOUNT}/dev/tty0 c 4 0
mknod ${RAMDISK_MOUNT}/dev/tty1 c 4 1
mknod ${RAMDISK_MOUNT}/dev/tty2 c 4 2
mknod ${RAMDISK_MOUNT}/dev/tty3 c 4 3
mknod ${RAMDISK_MOUNT}/dev/tty4 c 4 4
ln -s /dev/tty0 ${RAMDISK_MOUNT}/dev/systty
ln -s /dev/tty0 ${RAMDISK_MOUNT}/dev/console
ln -s /dev/ram1 ${RAMDISK_MOUNT}/dev/ram
ln -s / ${RAMDISK_MOUNT}/dev/root
cp /bin/ash.static ${RAMDISK_MOUNT}/bin/sh
cp /sbin/insmod.static ${RAMDISK_MOUNT}/bin/insmod
#cp /sbin/modprobe-static ${RAMDISK_MOUNT}/bin/modprobe
cp /lib/modules/${VER}/kernel/drivers/scsi/BusLogic.o ${RAMDISK_MOUNT}/lib
cp /lib/modules/${VER}/kernel/drivers/scsi/scsi_mod.o ${RAMDISK_MOUNT}/lib
cp /lib/modules/${VER}/kernel/drivers/scsi/sd_mod.o ${RAMDISK_MOUNT}/lib
echo "#!/bin/sh" >${RAMDISK_MOUNT}/linuxrc
echo "/bin/insmod /lib/scsi_mod.o" >>${RAMDISK_MOUNT}/linuxrc
echo "/bin/insmod /lib/BusLogic.o" >>${RAMDISK_MOUNT}/linuxrc
echo "/bin/insmod /lib/sd_mod.o" >>${RAMDISK_MOUNT}/linuxrc
chmod +x ${RAMDISK_MOUNT}/linuxrc
df ${RAMDISK_MOUNT}
sync
umount ${RAMDISK_MOUNT}
rmdir ${RAMDISK_MOUNT}
dd if=${RAMDISK_DEVICE} bs=1k count=${DISKSIZE} | gzip >/boot/initrd-${VER}
cp ${SYS} /boot/vmlinuz-${VER}
cp ${MAP} /boot/System.map-${VER}
rm -rf /boot/System.map
ln -s /boot/System.map-${VER} /boot/System.map
psupdate
#
echo >/boot/message
echo " Booting Linux version ${VER}" >>/boot/message
echo " Hit tab key to see alternatives" >>/boot/message
echo " This machine will self-destruct in 15 seconds" >>/boot/message
echo >>/boot/message
#
lilo -C - <<EOF
#
# Lilo boot-configuration script.
#
boot = /dev/sda
message = /boot/message
compact
delay = 15 # optional, for systems that boot very quickly
vga = normal # force sane state
image = /boot/vmlinuz-${VER}
root = current
label = new
initrd = /boot/initrd-${VER}
image = /vmlinuz
root = current
label = linux
image = /vmlinuz
root = /dev/sdc3
label = maint
image = /vmlinuz
root = /dev/sdb1
label = maint-su
append="init=/bin/bash"
image = /vmlinuz.old
root = current
label = linux_old
other = /dev/sda1
table = /dev/sda
label = dos
EOF
Here is a script to boot off a floppy.
#!/bin/bash
#
# This installs the kernel on a system that requires an initial
# RAM Disk and with an initial SCSI driver.
#
export VER=$1
RAMDISK_DEVICE=/dev/ram0
RAMDISK_MOUNT=/tmp/Ramdisk
RAMDISK_TMP=/mnt
DISKSIZE=1500
SYS=/usr/src/linux-${VER}/arch/i386/boot/bzImage
MAP=/usr/src/linux-${VER}/System.map
if [ "$1" = "" ] ;
then
echo "Usage:"
echo "make_ramdisk <version>"
exit 1
fi
if [ ! -f ${SYS} ] ;
then
echo "File not found, ${SYS}"
exit 1
fi
if [ ! -f ${MAP} ] ;
then
echo "File not found, ${MAP}"
exit 1
fi
if ! depmod -a ${VER} ;
then
echo "This won't work! There are some unresolved symbols."
exit 1
fi
mkdir ${RAMDISK_TMP} 2>/dev/null
umount ${RAMDISK_DEVICE} 2>/dev/null
umount ${RAMDISK_MOUNT} 2>/dev/null
mkdir ${RAMDISK_MOUNT} 2>/dev/null
dd if=/dev/zero of=${RAMDISK_DEVICE} bs=1k count=${DISKSIZE}
mke2fs -q ${RAMDISK_DEVICE} ${DISKSIZE}
mount -o loop ${RAMDISK_DEVICE} ${RAMDISK_MOUNT}
mke2fs -q /dev/fd0
mount /dev/fd0 ${RAMDISK_TMP}
rmdir ${RAMDISK_MOUNT}/lost+found
rmdir ${RAMDISK_TMP}/lost+found
mkdir ${RAMDISK_MOUNT}/dev
mkdir ${RAMDISK_MOUNT}/etc
mkdir ${RAMDISK_MOUNT}/lib
mkdir ${RAMDISK_MOUNT}/bin
mknod ${RAMDISK_MOUNT}/dev/null c 1 3
mknod ${RAMDISK_MOUNT}/dev/ram0 b 1 0
mknod ${RAMDISK_MOUNT}/dev/ram1 b 1 1
mknod ${RAMDISK_MOUNT}/dev/tty0 c 4 0
mknod ${RAMDISK_MOUNT}/dev/tty1 c 4 1
mknod ${RAMDISK_MOUNT}/dev/tty2 c 4 2
mknod ${RAMDISK_MOUNT}/dev/tty3 c 4 3
mknod ${RAMDISK_MOUNT}/dev/tty4 c 4 4
ln -s /dev/tty0 ${RAMDISK_MOUNT}/dev/systty
ln -s /dev/tty0 ${RAMDISK_MOUNT}/dev/console
ln -s /dev/ram1 ${RAMDISK_MOUNT}/dev/ram
ln -s / ${RAMDISK_MOUNT}/dev/root
cp /bin/ash.static ${RAMDISK_MOUNT}/bin/sh
cp /sbin/insmod.static ${RAMDISK_MOUNT}/bin/insmod
#cp /sbin/modprobe-static ${RAMDISK_MOUNT}/bin/modprobe
cp /lib/modules/${VER}/kernel/drivers/scsi/BusLogic.o ${RAMDISK_MOUNT}/lib
cp /lib/modules/${VER}/kernel/drivers/scsi/scsi_mod.o ${RAMDISK_MOUNT}/lib
cp /lib/modules/${VER}/kernel/drivers/scsi/sd_mod.o ${RAMDISK_MOUNT}/lib
cat >${RAMDISK_MOUNT}/linuxrc <<EOF
#!/bin/sh
/bin/insmod -f /lib/scsi_mod.o
/bin/insmod -f /lib/BusLogic.o
/bin/insmod -f /lib/sd_mod.o
EOF
chmod +x ${RAMDISK_MOUNT}/linuxrc
df ${RAMDISK_MOUNT}
sync
umount ${RAMDISK_MOUNT}
rmdir ${RAMDISK_MOUNT}
dd if=${RAMDISK_DEVICE} bs=1k count=${DISKSIZE} | gzip >${RAMDISK_TMP}/initrd-${VER}
cp ${SYS} ${RAMDISK_TMP}/vmlinuz-${VER}
cp ${MAP} ${RAMDISK_TMP}/System.map-${VER}
cp /boot/boot.b ${RAMDISK_TMP}
#
lilo -C - <<EOF
#
# Lilo boot-configuration script.
#
boot = /dev/fd0
map = ${RAMDISK_TMP}/map
install = ${RAMDISK_TMP}/boot.b
backup = /dev/null
compact
delay = 15 # optional, for systems that boot very quickly
vga = normal # force sane state
image = ${RAMDISK_TMP}/vmlinuz-${VER}
root = current
label = Linux
initrd = ${RAMDISK_TMP}/initrd-${VER}
EOF
umount ${RAMDISK_TMP}
They both work fine on 2.2.17, but fail to mount the initial ram-disk
if built while running 2.4.0-test9
Cheers,
Dick Johnson
Penguin : Linux version 2.2.17 on an i686 machine (801.18 BogoMips).
"Memory is like gasoline. You use it up when you are running. Of
course you get it all back when you reboot..."; Actual explanation
obtained from the Micro$oft help desk.
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