mount a sd cart on startup

[jaum20]

I am using LD with the image install (Ubuntu 18)
I have tried:

add an entry to fstab
add an entry to cron to be executed @reboot
add a SysVinit service

If I run 'sudo mount -a' it will mount the sd, but I can't make it mount automatically at startup. Any tips?

[qianbinbin]

Why not use the mount option in the APP?

If you don't want Android to mount your SD card during startup so that LP can mount it, check out https://gist.github.com/qianbinbin/e93e19940dda264cc5cd2ebdddbe565e

[jaum20]

If you don't want Android to mount your SD card during startup so that LP can mount it, check out https://gist.github.com/qianbinbin/e93e19940dda264cc5cd2ebdddbe565e

Infortunally I can not install magisk root

Why not use the mount option in the APP?

Any tips on how to do that? My sd is listed inside LD as /dev/block/mmcblk1

[qianbinbin]

The mount option in the APP is for folders already mounted by Android, but I'm not sure if it's suitable for a partition: bottom right button -> properties -> mounts, enable it and add a mount point like /sdcard - /mnt/sdcard.

The @reboot option seems not working with LP cron, since it's a non-standard option.

[qianbinbin]

Does mount -a work if a mount point added in fstab?

[jaum20]

Does mount -a work if a mount point added in fstab?

Yes. I had to do this everytime I start LD

[qianbinbin]

whats your sysv script like if you dont mind? did you try /etc/rc.local?

…

________________________________ From: jaum20 ***@***.***> Sent: Saturday, June 17, 2023 2:11:34 AM To: meefik/linuxdeploy ***@***.***> Cc: Binbin Qian ***@***.***>; Comment ***@***.***> Subject: Re: [meefik/linuxdeploy] mount a sd cart on startup (Issue #1360) Does mount -a work if a mount point added in fstab? Yes. I had to do this everytime I start LD — Reply to this email directly, view it on GitHub<#1360 (comment)>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/AB36AKG2MGY4CIAZ6QDU4WTXLSOVNANCNFSM6AAAAAAYK7GWAY>. You are receiving this because you commented.Message ID: ***@***.***>

[jaum20]

I created a /etc/init.d/mount_sd.sh script:

mount UUID=affdaccf-8998-4853-b2da-dd96bb45f78e /home/android/sd
but didn't work.

Fstab is UUID=affdaccf-8998-4853-b2da-dd96bb45f78e /home/android/sd ext4 defaults 0 0

[qianbinbin]

1. Does full path (mount -> /usr/bin/mount) work?
2. Does mount UUID=affdaccf-8998-4853-b2da-dd96bb45f78e /home/android/sd work if run manually?
3. Did you enable the script by update-rc.d?
4. Normally sysv scripts don't look like this, did your try /etc/rc.local?

[jaum20]

Does full path (mount -> /usr/bin/mount) work?

Didn't work

• Does mount UUID=affdaccf-8998-4853-b2da-dd96bb45f78e /home/android/sd work if run manually?

yes

• Did you enable the script by update-rc.d?

yes

4. Normally sysv scripts don't look like this, did your try /etc/rc.local?

there are not rc.local in etc. Must I create it?

[qianbinbin]

there are not rc.local in etc. Must I create it?

Not really, but it's useful when you want to run some scripts during startup. Create /etc/init.d/rc.local and enable it:

#! /bin/sh
### BEGIN INIT INFO
# Provides:          rc.local
# Required-Start:    $all
# Required-Stop:
# Default-Start:     2 3 4 5
# Default-Stop:
# Short-Description: Run /etc/rc.local if it exist
### END INIT INFO


PATH=/sbin:/usr/sbin:/bin:/usr/bin

. /lib/init/vars.sh
. /lib/lsb/init-functions

do_start() {
        if [ -x /etc/rc.local ]; then
                [ "$VERBOSE" != no ] && log_begin_msg "Running local boot scripts (/etc/rc.local)"
                /etc/rc.local
                ES=$?
                [ "$VERBOSE" != no ] && log_end_msg $ES
                return $ES
        fi
}

case "$1" in
    start)
        do_start
        ;;
    restart|reload|force-reload)
        echo "Error: argument '$1' not supported" >&2
        exit 3
        ;;
    stop)
        ;;
    *)
        echo "Usage: $0 start|stop" >&2
        exit 3
        ;;
esac

Create /etc/rc.local and chmod +x /etc/rc.local:

#!/bin/sh -e
#
# rc.local
#
# This script is executed at the end of each multiuser runlevel.
# Make sure that the script will "exit 0" on success or any other
# value on error.
#
# In order to enable or disable this script just change the execution
# bits.
#
# By default this script does nothing.

# Mount your SD card here:
/usr/bin/mount UUID=affdaccf-8998-4853-b2da-dd96bb45f78e /home/android/sd

exit 0

You can add some commands in /etc/rc.local before exit 0 to test if it's executed, like /usr/bin/touch /tmp/it_worked.

[jaum20]

there are not rc.local in etc. Must I create it?

Not really, but it's useful when you want to run some scripts during startup. Create /etc/init.d/rc.local and enable it:

#! /bin/sh
### BEGIN INIT INFO
# Provides:          rc.local
# Required-Start:    $all
# Required-Stop:
# Default-Start:     2 3 4 5
# Default-Stop:
# Short-Description: Run /etc/rc.local if it exist
### END INIT INFO


PATH=/sbin:/usr/sbin:/bin:/usr/bin

. /lib/init/vars.sh
. /lib/lsb/init-functions

do_start() {
        if [ -x /etc/rc.local ]; then
                [ "$VERBOSE" != no ] && log_begin_msg "Running local boot scripts (/etc/rc.local)"
                /etc/rc.local
                ES=$?
                [ "$VERBOSE" != no ] && log_end_msg $ES
                return $ES
        fi
}

case "$1" in
    start)
        do_start
        ;;
    restart|reload|force-reload)
        echo "Error: argument '$1' not supported" >&2
        exit 3
        ;;
    stop)
        ;;
    *)
        echo "Usage: $0 start|stop" >&2
        exit 3
        ;;
esac

Create /etc/rc.local and chmod +x /etc/rc.local:

#!/bin/sh -e
#
# rc.local
#
# This script is executed at the end of each multiuser runlevel.
# Make sure that the script will "exit 0" on success or any other
# value on error.
#
# In order to enable or disable this script just change the execution
# bits.
#
# By default this script does nothing.

# Mount your SD card here:
/usr/bin/mount UUID=affdaccf-8998-4853-b2da-dd96bb45f78e /home/android/sd

exit 0

You can add some commands in /etc/rc.local before exit 0 to test if it's executed, like /usr/bin/touch /tmp/it_worked.

Thank you for your help, bur didn't worked :(. The SD is not mounted at startup neither /tmp/it_worked is created

[qianbinbin]

OK, maybe something wrong with your sysv service, but you can always mount your SD card (requiring FAT32 or exFAT I guess?) on Android, then mount the directory in the APP.