Entware Tips and Tricks

Entware.md

Entware

Helpful tips and tricks for Entware

General Stuff

Install

DD-WRT

• ARMv7

cd /opt
wget http://bin.entware.net/armv7sf-k3.2/installer/generic.sh
sh generic.sh

• MIPS

cd /opt
wget http://bin.entware.net/mipssf-k3.4/installer/generic.sh
sh generic.sh

Packages

• opkg install coreutils coreutils-chown coreutils-chgrp shadow net-tools
• opkg install openssh-client-utils openssh-keygen openssh-moduli openssh-sftp-client
• opkg install rsync screen wget gcc tar

Debian

• opkg install debootstrap
• mkdir -p /opt/debian/usr/sbin /opt/debian/etc
• install-debian

Generate ssh host keys: /opt/bin/ssh-keygen -A

Info

• shadow: useradd, userdel, usermod, etc
• net-tools: domainname, etc
• gcc: building

Create an ipkg Repo

To create an ipkg repo:

1. git clone https://git.yoctoproject.org/git/opkg-utils
2. make clean install
3. Copy all ipkg files to a dir.
4. Using a shell, cd to the dir containing ipkg files.
5. Execute: opkg-make-index -a -v -p Packages .

Example

#!/bin/bash

cd /opt/shared/repo/ipkg

opkg-make-index -a -v -p Packages .

Useful Linux-y Things

• opkg install make gcc
• Get a copy of util-linux
• Contains things like rev

Postfix

• opkg install postfix
• chgrp postdrop /opt/sbin/postqueue /opt/sbin/postdrop /opt/var/spool/postfix/public /opt/var/spool/postfix/maildrop
• chown root /opt/var/spool/postfix/ /opt/var/spool/postfix/pid
• chmod g+s /opt/sbin/postqueue /opt/sbin/postdrop

Postgres

Installing

• opkg install pgsql-server pgsql-cli pgsql-cli-extra
• useradd postgres
• mkdir -p /opt/var/pgsql/data
• chown -R postgres:postgres /opt/var/pgsql
• su - postgres -c 'pg_ctl initdb -D /opt/var/pgsql/data'
• To Configure
  • /opt/var/pgsql/data/postgresql.conf
  • /opt/var/pgsql/data/pg_hba.conf

Maria DB

Installing

• opkg install mariadb-server mariadb-server-extra mariadb-client mariadb-client-extra
• useradd mysql
• mkdir -p /opt/var/lib/mysql /opt/var/log/mysql /opt/var/run/mysqld
• chown -R mysql:mysql /opt/var/lib/mysql /opt/var/log/mysql /opt/var/run/mysqld
• mysql_install_db --force
• To Configure
  • /opt/etc/mysql/conf.d/50-server.cnf

Memory Settings

Minum Memory Settings

Minimum memory settings can be found here.

/opt/etc/mysql/conf.d/50-server.cnf:

innodb_buffer_pool_size    = 5M
innodb_log_buffer_size     = 256K
query_cache_size           = 0
max_connections            = 5
key_buffer_size            = 8k
thread_cache_size          = 0
host_cache_size            = 0
innodb_ft_cache_size       = 1600000
innodb_ft_total_cache_size = 32000000

# per thread or per operation settings
thread_stack            = 192K
max_threads             = 5
sort_buffer_size        = 32K
read_buffer_size        = 8200
read_rnd_buffer_size    = 8200
max_heap_table_size     = 16K
tmp_table_size          = 1K
bulk_insert_buffer_size = 0
join_buffer_size        = 128
net_buffer_length       = 1K
innodb_sort_buffer_size = 64K

#settings that relate to the binary log (if enabled)
binlog_cache_size      = 4K
binlog_stmt_cache_size = 4K