I can't install entware on RT-N66U with firmware 378.51: Read-only file system

[decedion]

I'm trying to install entware on RT-N66U with firmware 378.51 and usb disk connected but it doesn't install it, it gives errors:

# entware-setup.sh
 Info:  This script will guide you through the Entware installation.
 Info:  Script modifies only "entware" folder on the chosen drive,
 Info:  no other data will be touched. Existing installation will be
 Info:  replaced with this one. Also some start scripts will be installed,
 Info:  the old ones will be saved on partition where Entware is installed
 Info:  like /tmp/mnt/sda1/jffs_scripts_backup.tgz

 Info:  Looking for available partitions...
[1] --> /tmp/mnt/usb
 =>  Please enter partition number or 0 to exit
[0-1]:
[: bad number
 Info:  selected.

 Info:  Creating /entware folder...
mkdir: can't create directory '/entware': Read-only file system
 Info:  Creating /tmp/opt symlink...
 Info:  Creating /jffs scripts backup...
tar: can't open '/jffs_scripts_backup_2015-03-23_14-59.tgz': Read-only file system
 Info:  Modifying start scripts...
 Info:  Starting Entware deployment....

Connecting to entware.wl500g.info (81.4.122.163:80)
entware_install.sh  100% |****************************************************************************|  1141  0:00:00 ETA
Info: Checking for prerequisites and creating folders...
mkdir: can't create directory '/opt/bin': No such file or directory
mkdir: can't create directory '/opt/etc': No such file or directory
mkdir: can't create directory '/opt/include': No such file or directory
mkdir: can't create directory '/opt/lib': No such file or directory
mkdir: can't create directory '/opt/sbin': No such file or directory
mkdir: can't create directory '/opt/share': No such file or directory
mkdir: can't create directory '/opt/tmp': No such file or directory
mkdir: can't create directory '/opt/usr': No such file or directory
mkdir: can't create directory '/opt/var': No such file or directory
mkdir: can't create directory '/opt/': No such file or directory
mkdir: can't create directory '/opt/': No such file or directory
mkdir: can't create directory '/opt/': No such file or directory
mkdir: can't create directory '/opt/': No such file or directory
Info: Opkg package manager deployment...
./entware_install.sh: cd: line 20: can't cd to /opt/bin
Connecting to entware.wl500g.info (81.4.122.163:80)
opkg  100% |****************************************************************************|  452k  0:00:00 ETA
chmod: /opt/bin/opkg: No such file or directory
./entware_install.sh: cd: line 23: can't cd to /opt/etc
Connecting to entware.wl500g.info (81.4.122.163:80)
opkg.conf  100% |****************************************************************************|  105  0:00:00 ETA
Info: Basic packages installation...
./entware_install.sh: line 27: /opt/bin/opkg: not found
./entware_install.sh: line 28: /opt/bin/opkg: not found
Info: Cleanup...
Info: Congratulations!
Info: If there are no errors above then Entware successfully initialized.
Info: Found a Bug? Please report at https://github.com/Entware/entware/issues

 

[decedion]

The System log - General log: http://pastebin.com/p2PRgEVm

 

[RMerlin]

[1] --> /tmp/mnt/usb
=> Please enter partition number or 0 to exit
[0-1]:
[: bad number
Info: selected.

Make sure you enter "1" here to select the disk.

 

[decedion]

[1] --> /tmp/mnt/usb
=> Please enter partition number or 0 to exit
[0-1]:
[: bad number
Info: selected.

Make sure you enter "1" here to select the disk.

Ok, I'm stupid. I didn't see that evident error.
Anyway, the script should abort in that case, don't you think?

 

[RMerlin]

Ok, I'm stupid. I didn't see that evident error.
Anyway, the script should abort in that case, don't you think?

No idea, I didn't write it.

 

[decedion]

No idea, I didn't write it.

I've consulted the Entware repository and there isn't any entware-setup.sh script nor reference to it, the problem about number entry is in entware-setup.sh no in entware-install.sh: https://github.com/RMerl/asuswrt-me...rc/router/others/entware.arm/entware-setup.sh

I have rewritten the first part of script to ensure that the value is correct:

#!/bin/sh

BOLD="\033[1m"
NORM="\033[0m"
INFO="$BOLD Info: $NORM"
ERROR="$BOLD *** Error: $NORM"
WARNING="$BOLD * Warning: $NORM"
INPUT="$BOLD => $NORM"

cd /tmp

if [ ! -d /jffs/scripts ]
then
  echo -e "$ERROR Please \"Enable JFFS partition\" & \"JFFS custom scripts and configs\""
  echo -e "$ERROR from router web UI: www.asusrouter.com/Advanced_System_Content.asp"
  echo -e "$ERROR then reboot router and try again. Exiting..."
  exit 1
fi

i=-1
echo -e $INFO Looking for available  partitions...
for mounted in `/bin/mount | grep -E 'ext2|ext3|ext4' | cut -d" " -f3`
do
  i=`expr $i + 1`
  echo "[$i] -->" $mounted
  eval mounts$i=$mounted
done

if [ $i -lt 0 ]
then
  echo -e "$ERROR No ext2/ext3/ext4 partition available. Exiting..."
  exit 1
fi

echo -en "$INPUT Please enter partition number or <${BOLD}ENTER${NORM}> to exit:"
read -n 1 partitionNumber
echo

if [ -z "$partitionNumber" ]; then
  echo -e $INFO Exiting...
  exit 0
elif [ -z "${partitionNumber#[!0-9]}" ]; then
  echo -e "$ERROR Invalid partition number!  Exiting..."
  exit 1
elif [ $partitionNumber -gt $i ]; then
  echo -e "$ERROR Invalid partition number!  Exiting..."
  exit 1
fi

......

I've tested it in my RT-N66U and it works.

 

[decedion]

Another good practice would abort in case of error in important commands like mkdir, rm, mv, cp,... with '|| exit 1', for example:

...
echo -e $INFO Creating $entFolder folder...
mkdir $entFolder || exit 1
...

 

[decedion]

Another improvement would use functions to repetitive tasks like display errors, etc... with:

#!/bin/sh

BOLD="\033[1m"
NORM="\033[0m"
INFO="$BOLD Info: $NORM"
ERROR="$BOLD *** Error: $NORM"
WARNING="$BOLD * Warning: $NORM"
INPUT="$BOLD => $NORM"

eerr () {
  echo -e "$ERROR$*"
}

einfo () {
  echo -e "$INFO$*"
}
.....
einfo This script will guide you through the Entware-Arm installation.
einfo Script modifies only \"entware.arm\" folder on the chosen drive,
.....
echo

if [ ! -d /jffs/scripts ]
then
  eerr "Please \"Enable JFFS partition\" & \"JFFS custom scripts and configs\""
  eerr "from router web UI: www.asusrouter.com/Advanced_System_Content.asp"
......

I hope this help.
Regards.