| TheDutchman |
04-23-2013 08:03 AM |
Changing FTP- port on NAS ix4-300d
Hello,
As my ISP blocks all ports below 1024 and I do not have a router for NAT I would like to change the proftpd ftp-server settings on my ix4-300d.
I have found some dpkg strings on the filesystem so I suppose it is debian based. I found the configuration file but it is read-only. It is located at
Code:
./mnt/apps/usr/local/cfg/proftpd.xml
When I try to chmod it to rw I get a file system read-only error. When I try to umount and remount I get a busy error with 20 processes which I'm not sure that are safe to kill. Here is an overview of the mount:
Code:
root@iom-server:/initrd# mount
rootfs on / type rootfs (rw)
/dev/root.old on /initrd type ext2 (rw,relatime,errors=continue)
none on / type tmpfs (rw,relatime,size=51200k,nr_inodes=63950)
ubi0:boot on /boot type ubifs (rw,sync,noatime)
/dev/md0_vg/BFDlv on /mnt/boot type ext2 (rw,noatime,errors=continue)
/dev/loop0 on /mnt/apps type ext2 (ro,relatime)
/dev/loop1 on /mnt/etc type ext2 (rw,sync,noatime)
none on /etc type unionfs (rw,sync,noatime,dirs=/mnt/etc=rw:/mnt/apps/etc=ro)
/dev/loop2 on /oem type squashfs (ro,relatime)
proc on /proc type proc (rw,relatime)
none on /proc/bus/usb type usbfs (rw,relatime)
none on /proc/fs/nfsd type nfsd (rw,relatime)
none on /sys type sysfs (rw,relatime)
tmpfs on /mnt/apps/lib/init/rw type tmpfs (rw,nosuid,relatime,mode=755)
tmpfs on /dev type tmpfs (rw,relatime,size=10240k,mode=755)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev,relatime)
devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620)
/dev/mapper/md0_vg-vol1 on /mnt/system type ext4 (rw,noatime,user_xattr,barrier= 1,data=ordered)
/dev/mapper/2f28cb78_vg-lv3d7cb3b1 on /mnt/pools/A/A0 type ext4 (rw,noatime,noui d32,user_xattr,barrier=0,data=ordered)
/dev/mapper/2f28cb78_vg-lv3d7cb3b1 on /nfs/Software type ext4 (rw,noatime,nouid3 2,user_xattr,barrier=0,data=ordered)
/dev/mapper/2f28cb78_vg-lv3d7cb3b1 on /nfs/Films type ext4 (rw,noatime,nouid32,u ser_xattr,barrier=0,data=ordered)
/dev/mapper/2f28cb78_vg-lv3d7cb3b1 on /nfs/Torrents type ext4 (rw,noatime,nouid3 2,user_xattr,barrier=0,data=ordered)
/dev/mapper/2f28cb78_vg-lv3d7cb3b1 on /nfs/Backup type ext4 (rw,noatime,nouid32, user_xattr,barrier=0,data=ordered)
/dev/mapper/2f28cb78_vg-lv3d7cb3b1 on /nfs/QuikTransfer type ext4 (rw,noatime,no uid32,user_xattr,barrier=0,data=ordered)
rpc_pipefs on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw,relatime)
The most important line is:
Code:
/dev/loop0 on /mnt/apps type ext2 (ro,relatime)
As killing all the processes is not a very good option I went to look where the loop device was mounted as read-only. I found this in the ~/initrd/common.sh file (which is writable):
Code:
###
# Search for and execute (if found) preimage script.
###
run_preimage_script()
{
preimage_script=/usb_drive/emctools/h4c_images/preimage.sh
echo -n "Checking for pre-image script... "
if [ -x $preimage_script ]
then
echo "found."
$preimage_script
return $?
else
echo "none."
return 0
fi
}
###
# Extract a platform imager upgrade file. Validate each invidual image
# via md5 checksum.
###
extract_validate_image()
{
IMAGES="apps config initrd zImage"
USB_IMAGER_IMAGE=/usb_drive/emctools/h4c_images/*.tgz
NoExtractionFile=/usb_drive/emctools/h4c_images/noextraction
tempFolder=/usb_drive/emctools/h4c_images/temp
if [ -f $USB_IMAGER_IMAGE ]
then
echo "Image tar file found: ${USB_IMAGER_IMAGE}"
else
echo "Image tar file not found: ${USB_IMAGER_IMAGE}"
return 1
fi
tmp=`pwd`
# extract
if [ -f $NoExtractionFile ] && [ -d $tempFolder ]
then
echo "No need to extract Image tar file."
cd $tempFolder
else
echo "Extract Image tar file."
mkdir -p $tempFolder
cd $tempFolder
tar -xzvf $USB_IMAGER_IMAGE
fi
# Validate the images
for IMAGE in $IMAGES; do
if [ -f $IMAGE ]
then
local_md5=`md5sum $IMAGE |awk -F ' ' '{print $1}'`
md5_from_tar=`cat $IMAGE".md5"`
if [ "$local_md5" == "$md5_from_tar" ]
then
echo "$IMAGE is valid"
else
echo "$IMAGE is not valid"
cd $tmp
rm -fr /usb_drive/emctools/h4c_images/temp/
return 3
fi
else
echo "$IMAGE Not found in $USB_IMAGER_IMAGE tar file"
cd $tmp
rm -fr /usb_drive/emctools/h4c_images/temp/
return 2
fi
done
cd $tmp
return 0
}
setup_rootfs_to_shutdown()
{
# set up the rootfs just enough to finish the boot
# and shutdown
mkdir /sysroot/bin
cp -r -d /bin/* /sysroot/bin/
mkdir /sysroot/sbin
cp -r -d /sbin/* /sysroot/sbin/
cp -r -d /imager_contents/etc /sysroot/
mkdir -p /sysroot/dev
cp -r -d /dev/* /sysroot/dev/
mkdir -p /sysroot/sys
mkdir -p /sysroot/proc
mkdir -p /sysroot/usr
mkdir -p /sysroot/usr/local
mkdir -p /sysroot/usr/local/cfg/
cp -r -d /imager_contents/initrd_bootstrap.sh /sysroot/usr/local/cfg/
# mount the boot filesystem
mkdir -p sysroot/boot
mkdir -p /sysroot/sysroot
sleep 5
}
enable_network()
{
echo "Enable Network" $1
ethno=$1
ifconfig $ethno up
if [ $? -eq 0 ]
then
sleep 5
udhcpc -t 10 -n -s /etc/network/udhcpc.script -p /var/run/udhcpc.$ethno.pid -i $ethno
sleep 2
fi
ifconfig $ethno
sleep 2
}
###
# Invoke the main USB imaging process.
###
do_usb_imaging()
{
# invoke the actual imager script
/imager_contents/emc_imager.sh usb_imaging $1 $2 $3 $4
setup_rootfs_to_shutdown
echo "Imaging Successful. Please remove the USB drive before the next power on"
}
###
# Normal, platform independent lifeline boot. Mount images
# and set up the rootfs.
###
do_normal_boot()
{
echo "Found Valid EMC Image in disk..."
MNTOPTS=loop
NFSDEBUGMOD=
NFS_SERVER=
NFS_ROOT=/home/soho/soho_root
echo "Mounting apps image..."
mkdir -p sysroot/mnt/apps
if [ "$NFSDEBUGMOD" = "" ]
then
mount -o loop,ro $APPS_IMAGE sysroot/mnt/apps
else
#for NFS debugging
enable_network eth0
echo "mount -t nfs -onolock $NFS_SERVER:$NFS_ROOT sysroot/mnt/apps"
mount -t nfs -onolock $NFS_SERVER:$NFS_ROOT sysroot/mnt/apps
sleep 2
fi
# mount config
echo "Mounting config image..."
losetup /dev/loop1 $CONFIG_IMAGE
# we temporarily symlink /lib and /usr/lib to the apps image, so we can run
# the dynamically linked fsck executable from that location in initrd context
echo "Check config filesystem"
ln -s /sysroot/mnt/apps/lib /lib
mkdir -p /usr
ln -s /sysroot/mnt/apps/usr/lib /usr/lib
e2fsck -y /dev/loop1 > etc/fsck
rm -rf /lib /usr/lib /usr
# mount the writeable image
mkdir -p sysroot/mnt/etc
mount /dev/loop1 sysroot/mnt/etc -o noatime,sync
# mount a unionfs of the RO content and RW image
mkdir -p sysroot/etc
mount -t unionfs none /sysroot/etc -o noatime,sync,dirs=/sysroot/mnt/etc=rw:/sysroot/mnt/apps/etc=ro
# remove old System.map files
rm /sysroot/boot/System.map-*
# copy the System.map file to /boot
echo "Copying System.map..."
SYSTEM_MAP_SRC_NAME="/sysroot/mnt/apps/var/System.map-*"
SYSTEM_MAP_DEST_NAME="/sysroot/boot/"
if [ -f $SYSTEM_MAP_SRC_NAME ]; then
cp -f $SYSTEM_MAP_SRC_NAME $SYSTEM_MAP_DEST_NAME
fi
# mount the branding image if it exists
if [ -f $OEM_IMAGE ]; then
mkdir -p sysroot/oem
mount -o $MNTOPTS sysroot/boot/images/oem sysroot/oem
fi
}
###
# Update an image in NAND flash. Locate the mtd partition by name,
# erase, and reflash.
###
update_flash_image()
{
# search for the image dev by name
mtdname=`grep $1 /proc/mtd | awk -F : '{ print $1 }'`
if [ ! $mtdname ];
then
echo "No Image"
return
fi
# get the major:minor for this mtd dev
major=`cat /sys/class/mtd/$mtdname/dev | awk -F : '{ print $1 }'`
minor=`cat /sys/class/mtd/$mtdname/dev | awk -F : '{ print $2 }'`
# create the dev node, update the image
mknod /dev/$mtdname c $major $minor
flash_eraseall /dev/$mtdname
nandwrite -p /dev/$mtdname $2
}
###
# Copy images from the USB drive to the image
# location on the device.
###
copy_image()
{
IMAGES_DIR=/sysroot/boot/images
SDKAPPS_DIR=/sysroot/boot/SDKApps
SDKAPPS_SOURCE=/usb_drive/emctools/h4c_images/SDKApps
SDK_ETC_DIR=/sysroot/etc
SDK_ETC_SOURCE=/usb_drive/emctools/h4c_images/etc
CONFIG_IMAGE=/sysroot/boot/images/config
mkdir $IMAGES_DIR
cp $APPS_UPGRADE_IMAGE $IMAGES_DIR
cp $CONFIG_UPGRADE_IMAGE $IMAGES_DIR
cp $OEM_UPGRADE_IMAGE $IMAGES_DIR
echo "Copied apps config and oem image"
if [ -f $KERNEL_IMAGE ]
then
cp $KERNEL_IMAGE $IMAGES_DIR
fi
if [ -f $RAMDISK_IMAGE ]
then
cp $RAMDISK_IMAGE $IMAGES_DIR
fi
if [ -d "$SDKAPPS_SOURCE" ]
then
#Copy the SDK Apps
mkdir -p $SDKAPPS_DIR
echo "Copying SDK Apps to $SDKAPPS_DIR"
cp -f $SDKAPPS_SOURCE/* $SDKAPPS_DIR
fi
if [ -d "$SDK_ETC_SOURCE" ]
then
#Copy the SDK ETC
losetup /dev/loop1 $CONFIG_IMAGE
mkdir -p $SDK_ETC_DIR
mount /dev/loop1 $SDK_ETC_DIR -o noatime,sync
echo "Copying SDK Etc to $SDK_ETC_DIR"
cp -f $SDK_ETC_SOURCE/* $SDK_ETC_DIR
sleep 4
umount $SDK_ETC_DIR
fi
}
Here the important part is:
Code:
if [ "$NFSDEBUGMOD" = "" ]
then
mount -o loop,ro $APPS_IMAGE sysroot/mnt/apps
else
#for NFS debugging
enable_network eth0
echo "mount -t nfs -onolock $NFS_SERVER:$NFS_ROOT sysroot/mnt/apps"
mount -t nfs -onolock $NFS_SERVER:$NFS_ROOT sysroot/mnt/apps
sleep 2
fi
This is when I try to see what the variable contains:
Code:
root@iom-server:/# echo $NFSDEBUGMOD
root@iom-server:/#
I tried changing
Code:
mount -o loop,ro $APPS_IMAGE sysroot/mnt/apps
to
Code:
mount -o loop,rw $APPS_IMAGE sysroot/mnt/apps
and
Code:
mount -o loop,$APPS_IMAGE sysroot/mnt/apps
followed by a reboot, but the common.sh still somehow gets replaced by the original file and the loop device is always mounted read-only..
Who can help me with this ?
Thanks already |
