Hi all
Is possible import new modules to linino python ? (like PySynth , Numpy, etc ...)
Thanks info
Kamil
I think if you try
http://forum.arduino.cc/index.php?topic=193155.msg1427318
It might be a start for you!
Many thanks working great !
One question - is possible install modules to SD card ?
Kamil
Rootfs on External Storage (extroot)
http://wiki.openwrt.org/doc/howto/extroot
#df
Filesystem 1K-blocks Used Available Use% Mounted on
rootfs 15800240 85112 14905864 1% /
/dev/root 7168 7168 0 100% /rom
tmpfs 30568 312 30256 1% /tmp
tmpfs 512 0 512 0% /dev
/dev/sda1 15800240 85112 14905864 1% /
Use 1% of rootfs, after I use 83 Mb.
Thanks but this is very difficult for me.
Exist simplest step by step guide how to make SD extroot ?
Sorry i´m beginner with linux.
Many thanks help
Kamil
df
fdisk /dev/sda
reboot
umount -f /mnt/sda1
mke2fs -t ext4 /dev/sda1
mkdir -p /mnt/sda1
mount /dev/sda1 /mnt/sda1
mkdir -p /tmp/cproot
mount --bind / /tmp/cproot
tar -C /tmp/cproot -cvf - . | tar -C /mnt/sda1 -xf -
umount /tmp/cproot
nano /etc/config/fstab
...
config mount
option target /
option device /dev/sda1
option fstype ext4
option options rw,sync
option enabled 1
option enabled_fsck 0
reboot
df
4GB rootfs :-D
Many many thanks this working fine !!! :-)
One simple question - is possible make small partition fat32 ? I´m use 4GB SD card - my idea 3GB ext for rootfs and second 1GB fat32 (for my winxp read)
Thanks help
Kamil
Sure:
fdisk /dev/sda
make 2 partition:
/dev/sda1 3G /dev/sda2 1G
mkdosfs -F 32 /dev/sda2
mke2fs -t ext4 /dev/sda1
http://forum.arduino.cc/index.php?topic=222069.msg1614584#msg1614584
Test it and working but both me partition is only ext
- fdisk and delete existing fat32 partition
- make new primary aprox. 2G
- make second primary 2G
write and quit fdisk
reboot
unmount sda1 and sda2 (test without this step and same result)
mkdosfs -F 32 /dev/sda2
mke2fs -t ext4 /dev/sda1
reboot
yes two partition but both linux ext - not fat32 !
please help thanks
The output of
fdisk /dev/sda
Sometime windows doesn’t like Fat 32 as second partition. Use fdisk set up Fat 32 as first one.
fdisk -l
Device Boot Start End Blocks Id System
/dev/sda1 2048 16779263 8388608 c W95 FAT32 (LBA)
/dev/sda2 16779264 32372735 7796736 83 Linux
mkdosfs -F 32 /dev/sda1
mke2fs -t ext4 /dev/sda2
umount -f /mnt/sda2
mkdir -p /mnt/sda2
mount /dev/sda2 /mnt/sda2
mkdir -p /tmp/cproot
mount --bind / /tmp/cproot
tar -C /tmp/cproot -cvf - . | tar -C /mnt/sda2 -xf -
umount /tmp/cproot
nano /etc/config/fstab
config mount
option target /
option device /dev/sda2
option fstype ext4
option options rw,sync
option enabled 1
option enabled_fsck 0
Heeeeeej working !!!!!!
Many many thanks your time :-D
Kamil
I followed these steps (tnx) to get the OS on my /dev/sda1 partition , but I am confused about 1 thing.
Previously I used /mnt/sda1 to put all my arduino stuff that are used by the sketch. I see this is still available. Does it mean both / and /mnt/sda1 are mounted on my SD card?
I have following mount output:
rootfs on / type rootfs (rw)
/dev/root on /rom type squashfs (ro,relatime)
proc on /proc type proc (rw,noatime)
sysfs on /sys type sysfs (rw,noatime)
tmpfs on /tmp type tmpfs (rw,nosuid,nodev,noatime,size=30560k)
tmpfs on /dev type tmpfs (rw,noatime,size=512k,mode=755)
devpts on /dev/pts type devpts (rw,noatime,mode=600)
/dev/sda1 on / type ext4 (rw,sync,relatime,user_xattr,barrier=1,data=ordered)
debugfs on /sys/kernel/debug type debugfs (rw,relatime)
/dev/sda2 on /mnt/sda2 type ext4 (rw,sync,relatime,user_xattr,barrier=1,data=ordered)
none on /proc/bus/usb type usbfs (rw,relatime)
it doesnt even mention /mnt/sda1, but I can write files to it...
It looks like you have a folder /mnt/sda1 but this is not bound to any sd card. I suggest you move those files away and remove the folder.
Instead, you're using the sd card to extend the disk space of the yun (good!) as row "/dev/sda1 on / type ext4" says
The "data" part of the sd card is available on /mnt/sda2. If you followed the tutorial for extending the disk space, typing
ls -la /mnt should show that /mnt/sd is indeed pointing to /mnt/sda2
I used this page as guidelines. I manually made 2 partitions (sda1 and sda2) and moved the OS to sda2. I didnt do anything with sda2.
These are the /mnt folders:
drwxr-xr-x 4 root root 4096 May 25 09:44 .
drwxr-xr-x 18 root root 4096 May 25 09:46 ..
lrwxrwxrwx 1 root root 9 May 25 09:44 sd -> /mnt/sda1
drwxr-xr-x 2 root root 4096 May 25 17:32 sda1
drwxr-xr-x 3 root root 4096 May 25 09:22 sda2
sd is still pointing to sda1.
I still wonder where I am actually writing if I write to /mnt/sda1? /mnt is a subdir of root /, so I guess /mnt/sda1 is also on the SD card?
I guess so. Try to compare your manual way to the sketch way of the tutorial
drwxr-xr-x 4 root root 4096 May 25 09:44 .
drwxr-xr-x 18 root root 4096 May 25 09:46 ..
lrwxrwxrwx 1 root root 9 May 25 09:44 sd -> /mnt/sda1
drwxr-xr-x 2 root root 4096 May 25 17:32 sda1
drwxr-xr-x 3 root root 4096 May 25 09:22 sda2
sd -> /mnt/sda1 is symbolic link, you could safely delete it and recreate it as way you like.
ln -s /path-text/of-symbolic-link /path/to/file-to-hold-that-text
rm /mnt/sd
ln -s /mnt/sd /mnt/sda2