bodhi's Debian rootfs, prepared specifically for Pogoplug V4 devices (Pogoplug Mobile and Pogoplug Series 4).
User 'bodhi' at http://forum.doozan.com has prepared a Debian rootfs tarball for use with many small ARM machines (see this thread: http://forum.doozan.com/read.php?2,12096).
However, his release still requires a few additional steps in order to prepare it for the Pogoplug.
This github repository aims to provide versions of his rootfs (and disk images) which are fully ready to be used with Pogoplug V4 devices (Pogoplug Mobile and Pogoplug Series 4).
If you apt-get dist-upgrade from jessie to stretch and it "bricks" your 'plug, it is probably due to fsck not being able to find /dev/root:
[....] Checking file systems...fsck from util-linux 2.29.2
fsck.ext3: No such file or directory while trying to open /dev/root
Possibly non-existent device?
fsck exited with status code 8
failed (code 8).
[FAIL] File system check failed. A log is being saved in /var/log/fsck/checkfs if that location is writable. Please repair the file system manually. ... failed!
[warn] A maintenance shell will now be started. CONTROL-D will terminate this shell and resume system boot. ... (warning).
Give root password for maintenance
(or press Control-D to continue):
You can fix this by placing your SD card into a laptop and editing /etc/fstab. Replace /dev/root with /dev/mmcblk0p1 (if you boot from SD card).
Also packaged as a raw disk image (see below instructions about growing the partition after you write the image to an SD card):
If you can't grow the partition after writing the SD card (e.g. Windows and Mac users), here's the above packaged as a 4GB raw disk image:
Write the disk image to the SD card at /dev/sdf:
dev=sdf
cat ~/Debian-jessie-3.18.5-pogoplug-v4-*-disk-image.dd.gz | gunzip > /dev/${dev}
Grow the SD card partition to take up the entire disk:
sfdisk /dev/${dev} << 'EOF'
,,,*
EOF
Grow the filesystem:
e2fsck -f /dev/${dev}1
resize2fs /dev/${dev}1
sync
Now stick it in a pogoplug and boot it!
root's password is set to the empty string. ssh shouldn't prompt you for a password.
Don't forget to set a root password after logging in!
ssh [email protected]
passwd
Note: it may take a minute or two for ssh to start (it has to regenerate a new set of host keys).
For those without access to sfdisk and resize2fs, I have also provided a 4GB disk image packaged in a .zip file.
See this page for some tips on writing the disk image to an SD card on Windows or Mac: http://elinux.org/RPi_Easy_SD_Card_Setup
I performed the following steps (on a machine running Debian jessie) to prepare the rootfs and disk images.
All of these commands should be run as root.
Set the following env vars (adjust as needed for your situation):
# SD card device:
dev=sdf
# temporary mount point:
mnt=/mnt/tmp
Partition and format the SD card:
sfdisk /dev/${dev} << 'EOF'
,,,*
EOF
mke2fs -j -L rootfs /dev/${dev}1
Mount the SD card:
mount /dev/${dev}1 ${mnt}
Download bodhi's tarball (if you haven't already):
if [ ! -e ~/Debian-3.18.5-kirkwood-tld-1-rootfs-bodhi.tar.bz2 ]
then
wget -O ~/Debian-3.18.5-kirkwood-tld-1-rootfs-bodhi.tar.bz2 https://bitly.com/1ELvRaw
md5sum -c - << EOF
b5057448e7e08c747793f205e7027395 ${HOME}/Debian-3.18.5-kirkwood-tld-1-rootfs-bodhi.tar.bz2
EOF
fi
Unpack the tarball:
cd ${mnt}
cat ~/Debian-3.18.5-kirkwood-tld-1-rootfs-bodhi.tar.bz2 | bunzip2 | tar x
Create a basic ${mnt}/etc/fstab which uses ext3 as the rootfs filesystem:
cat > ${mnt}/etc/fstab << 'EOF'
# /etc/fstab: static file system information.
#
# <file system> <mount point> <type> <options> <dump> <pass>
/dev/root / ext3 noatime,errors=remount-ro 0 1
EOF
Setup the kernel image for the bootloader:
cd ${mnt}/boot
cp -a zImage-3.18.5-kirkwood-tld-1 zImage.fdt
cat dts/kirkwood-pogoplug_v4.dtb >> zImage.fdt
mv uImage uImage.orig
mkimage -A arm -O linux -T kernel -C none -a 0x00008000 -e 0x00008000 -n Linux-3.18.5-kirkwood-tld-1 -d zImage.fdt uImage
Unmount the SD card:
cd
umount ${mnt}
sync
Insert the SD card into a Pogoplug, boot it, and ssh into it:
(The root password for bodhi's rootfs is root).
Comment out the deb-src entry in /etc/sources.list (speeds up apt a bit):
sed -i'' 's/^deb-src/#deb-src/' /etc/apt/sources.list
Install the latest security updates:
apt-get update
apt-get dist-upgrade
Remove unneeded packages:
apt-get autoremove
Remove cached packages:
apt-get clean
Restore root's ~/.profile:
cp -a /usr/share/base-files/profile /root/.profile
Clear out /etc/udev/rules.d/70-persistent-net.rules:
echo -n > /etc/udev/rules.d/70-persistent-net.rules
Set root's password to be the empty string. Edit /etc/shadow so that root's password hash is s8OebdUUcHNvg.
nano /etc/shadow
root's entry should look something like this:
root:s8OebdUUcHNvg:15910:0:99999:7:::
Edit /etc/ssh/sshd_config to allow root login with no password:
PermitRootLogin yes
PermitEmptyPasswords yes
Remove the ssh host keys:
rm -f /etc/ssh/ssh_host*
Add the following to /etc/rc.local to have the ssh host keys regenerated upon next boot. NOTE: Make sure you add this section before the line which says exit 0:
(thanks to https://forums.opensuse.org/showthread.php/477727-Regenerate-SSH-config-after-virtual-machine-cloning)
if [ ! -e /etc/ssh/ssh_host_rsa_key ]
then
dpkg-reconfigure openssh-server
/etc/init.d/ssh restart || true
fi
Don't forget to make sure /etc/rc.local is set executable:
chmod +x /etc/rc.local
Shutdown the pogoplug and remove the SD card:
sync
poweroff
Insert the SD card back into your Debian jessie PC.
Double-check that your ${dev} env var is still correct:
fdisk -l /dev/${dev}
Mount the SD card:
mount /dev/${dev}1 ${mnt}
Remove root's .bash_history file:
rm ${mnt}/root/.bash_history
Create the rootfs tarball:
cd ${mnt}
tarball_date=$(date +%Y%m%d)
tar c . | gzip > ~/Debian-jessie-3.18.5-pogoplug-v4-${tarball_date}-rootfs.tar.gz
Unmount the SD card:
cd
umount ${mnt}
sync
Zero out the first 512,000,000 bytes of the SD card:
dd if=/dev/zero of=/dev/${dev} bs=1MB count=512
sync
Create a bootable partition of (at least) 480MiB on the SD card (sfdisk will round up to the nearest cylinder):
sfdisk -uM /dev/${dev} << 'EOF'
,480,,*
EOF
Format the partition:
mke2fs -j -L rootfs /dev/${dev}1
Mount the SD card:
mount /dev/${dev}1 ${mnt}
Unpack the tarball:
cd ${mnt}
cat ~/Debian-jessie-3.18.5-pogoplug-v4-${tarball_date}-rootfs.tar.gz | gunzip | tar x
Unmount the SD card:
cd
umount ${mnt}
sync
Determine the exact size of the disk image:
sfdisk -l -uS /dev/${dev}
Example output:
# sfdisk -l -uS /dev/${dev}
Disk /dev/sdf: 1021 cylinders, 245 heads, 62 sectors/track
Units: sectors of 512 bytes, counting from 0
Device Boot Start End #sectors Id System
/dev/sdf1 * 1 987349 987349 83 Linux
/dev/sdf2 0 - 0 0 Empty
/dev/sdf3 0 - 0 0 Empty
/dev/sdf4 0 - 0 0 Empty
Here, we need to copy exactly (1 + 987349) * 512 bytes of the disk in order to make a usable disk image. We will tell dd to copy 987350 blocks of 512 bytes.
Create the disk image:
dd if=/dev/${dev} bs=512 count=987350 | gzip > ~/Debian-jessie-3.18.5-pogoplug-v4-${tarball_date}-disk-image.dd.gz
Zero out the first 4,000,000,000 bytes of the SD card:
dd if=/dev/zero of=/dev/${dev} bs=1MB count=4000
sync
Create a bootable partition of (at least) 3800MiB on the SD card (sfdisk will round up to the nearest cylinder):
sfdisk -uM /dev/${dev} << 'EOF'
,3800,,*
EOF
Format the partition, mount the SD card, unpack the tarball, then unmount the SD card:
mke2fs -j -L rootfs /dev/${dev}1
mount /dev/${dev}1 ${mnt}
cd ${mnt}
cat ~/Debian-jessie-3.18.5-pogoplug-v4-${tarball_date}-rootfs.tar.gz | gunzip | tar x
cd
umount ${mnt}
sync
Determine the exact size of the disk image:
sfdisk -l -uS /dev/${dev}
Example output:
# sfdisk -l -uS /dev/${dev}
Disk /dev/sdf: 1021 cylinders, 245 heads, 62 sectors/track
Units: sectors of 512 bytes, counting from 0
Device Boot Start End #sectors Id System
/dev/sdf1 * 1 7792469 7792469 83 Linux
/dev/sdf2 0 - 0 0 Empty
/dev/sdf3 0 - 0 0 Empty
/dev/sdf4 0 - 0 0 Empty
Here, we need to copy exactly (1 + 7792469) * 512 bytes of the disk in order to make a usable disk image. We will tell dd to copy 7792470 blocks of 512 bytes.
Create the disk image:
cd
dd if=/dev/${dev} bs=512 count=7792470 > Debian-jessie-3.18.5-pogoplug-v4-${tarball_date}-disk-image.4GB.img
zip Debian-jessie-3.18.5-pogoplug-v4-${tarball_date}-disk-image.4GB.img.zip Debian-jessie-3.18.5-pogoplug-v4-${tarball_date}-disk-image.4GB.img
rm Debian-jessie-3.18.5-pogoplug-v4-${tarball_date}-disk-image.4GB.img
cd
md5sum *rootfs.tar.gz *disk-image.dd.gz *disk-image.4GB.dd.zip > md5sums
You may also be interested in my other Pogoplug github projects: