upgrade VenusOS 2.89 to 2.90 -> ERROR: no service template for dbus-serialbattery

[dominikde]

You have a working dbus-serialbattery installation and upgrade your VenusOS on Cerbo from 2.89 to 2.9, dbus-serialbattery stops working:

root@einstein:~# tail -f /data/log/serial-starter/current @4000000063303b520f814e94 ERROR: no service template for dbus-serialbattery

• Device type: Cerbo

• Firmware Version 2.89 to 2.9

• BMS/Battery type: JKBMS

• Cells: 2 x 16

• Interface: usb-rs485

When you reboot in 2.89 all is working again. How to fix this?

[dominikde]

On 2.9 the mount point / is read only:

root@einstein:/opt/victronenergy# touch test touch: test: Read-only file system root@einstein:/opt/victronenergy# mount /dev/mmcblk1p2 on / type ext4 (ro,relatime) devtmpfs on /dev type devtmpfs (rw,relatime,size=465376k,nr_inodes=116344,mode=755) proc on /proc type proc (rw,relatime) sysfs on /sys type sysfs (rw,relatime) debugfs on /sys/kernel/debug type debugfs (rw,relatime) configfs on /sys/kernel/config type configfs (rw,relatime) tmpfs on /run type tmpfs (rw,nosuid,nodev,mode=755) tmpfs on /var/volatile type tmpfs (rw,relatime) /dev/mmcblk1p5 on /data type ext4 (rw,noatime) devpts on /dev/pts type devpts (rw,relatime,gid=5,mode=620,ptmxmode=000) tmpfs on /service type tmpfs (rw,nosuid,nodev,mode=755) overlay on /var/lib type overlay (rw,relatime,lowerdir=/var/lib,upperdir=/var/volatile/lib,workdir=/var/volatile/.lib-work) root@einstein:/opt/victronenergy#

So the install script cannot reinstall it in /opt/victronenergy:

oot@einstein:~# sh /data/etc/dbus-serialbattery/reinstalllocal.sh mkdir: can't create directory '/opt/victronenergy/dbus-serialbattery': Read-only file system mkdir: can't create directory '/opt/victronenergy/service-templates/dbus-serialbattery': Read-only file system cp: can't create '/opt/victronenergy/dbus-serialbattery/LICENSE': No such file or directory cp: can't create '/opt/victronenergy/dbus-serialbattery/README.md': No such file or directory cp: can't create '/opt/victronenergy/dbus-serialbattery/ant.py': No such file or directory cp: can't create '/opt/victronenergy/dbus-serialbattery/battery.py': No such file or directory cp: can't create '/opt/victronenergy/dbus-serialbattery/daly.py': No such file or directory cp: can't create '/opt/victronenergy/dbus-serialbattery/dbus-serialbattery.py': No such file or directory cp: can't create '/opt/victronenergy/dbus-serialbattery/dbushelper.py': No such file or directory cp: can't create '/opt/victronenergy/dbus-serialbattery/disabledriver.sh': No such file or directory cp: can't create '/opt/victronenergy/dbus-serialbattery/ecs.py': No such file or directory cp: can't create '/opt/victronenergy/dbus-serialbattery/installlocal.sh': No such file or directory cp: can't create '/opt/victronenergy/dbus-serialbattery/installqml.sh': No such file or directory cp: can't create '/opt/victronenergy/dbus-serialbattery/installrelease.sh': No such file or directory cp: can't create '/opt/victronenergy/dbus-serialbattery/jkbms.py': No such file or directory cp: can't create '/opt/victronenergy/dbus-serialbattery/lifepower.py': No such file or directory cp: can't create '/opt/victronenergy/dbus-serialbattery/lltjbd.py': No such file or directory cp: can't create '/opt/victronenergy/dbus-serialbattery/minimalmodbus.py': No such file or directory cp: can't create '/opt/victronenergy/dbus-serialbattery/mnb.py': No such file or directory cp: omitting directory '/data/etc/dbus-serialbattery/qml' cp: can't create '/opt/victronenergy/dbus-serialbattery/reinstalllocal.sh': No such file or directory cp: can't create '/opt/victronenergy/dbus-serialbattery/renogy.py': No such file or directory cp: can't create '/opt/victronenergy/dbus-serialbattery/revov.py': No such file or directory cp: omitting directory '/data/etc/dbus-serialbattery/service' cp: can't create '/opt/victronenergy/dbus-serialbattery/sinowealth.py': No such file or directory cp: can't create '/opt/victronenergy/dbus-serialbattery/start-serialbattery.sh': No such file or directory cp: can't create '/opt/victronenergy/dbus-serialbattery/util_max17853.py': No such file or directory cp: can't create '/opt/victronenergy/dbus-serialbattery/utils.py': No such file or directory cp: can't create directory '/opt/victronenergy/service-templates/dbus-serialbattery/log': No such file or directory cp: can't create '/opt/victronenergy/service-templates/dbus-serialbattery/run': No such file or directory

[dominikde]

on 2.89 the mount / is read write:

/dev/mmcblk1p3 on / type ext4 (rw,relatime) devtmpfs on /dev type devtmpfs (rw,relatime,size=465376k,nr_inodes=116344,mode=755) proc on /proc type proc (rw,relatime) sysfs on /sys type sysfs (rw,relatime) debugfs on /sys/kernel/debug type debugfs (rw,relatime) configfs on /sys/kernel/config type configfs (rw,relatime) tmpfs on /run type tmpfs (rw,nosuid,nodev,mode=755) tmpfs on /var/volatile type tmpfs (rw,relatime) /dev/mmcblk1p5 on /data type ext4 (rw,noatime) devpts on /dev/pts type devpts (rw,relatime,gid=5,mode=620,ptmxmode=000) overlay on /service type overlay (rw,relatime,lowerdir=/opt/victronenergy/service,upperdir=/run/overlays/service,workdir=/run/overlays/work/service) root@einstein:~#

[dominikde]

Ok, with the following command you can change to read/write FS: /opt/victronenergy/swupdate-scripts/remount-rw.sh

[Louisvdw]

Thanks for the feedback. I'll do some test with upgrades to 2.90 this week and adjust the script to include the remound