[Freedombox-discuss] boot partition full

[Jonas Smedegaard]

Quoting permondes - sagen (2017-01-07 10:39:28)
> Am Samstag, den 07.01.2017, 12:17 +0530 schrieb Sunil Mohan Adapa:
> 
> > On 01/07/2017 05:43 AM, Jonas Smedegaard wrote:
> > [...]
> > >> So it is still booting the 4.3 kernel, which is unknown to aptitude.
> > > 
> > > Seems your hardware is ARM-based.  Commonly ARM-based hardware need the 
> > > package flashkernel to copy installed kernel + initramfs to the 
> > > different (hardware-specific) location where the bootloader looks for 
> > > it.
> > 
> > Indeed you need flash-kernel package.
> > 
> > If you have boot.cmd instead of boot.scr and also don't have
> > flash-kernel package, you must upgrading and running a FreedomBox image
> > from many releases ago.
> > 
> > To fix the situation,
> > 
> > 1. Take backup of your SD card.
> > 
> > 2. Make sure /boot is ext2fs and not vfat.
> > 
> > 3. Install flash-kernel.  This will create the proper /boot/boot.scr
> > file with a line like "setenv fk_kvers '4.8.0-2-armmp-lpae'".
> > 
> > 4. Optionally set /etc/flash-kernel/machine to "Olimex
> > A20-OLinuXino-LIME2" (depending on your board).  This should not be
> > required as flash-kernel will properly detect the machine when you are
> > running it from within the machine.
> > 
> > 4. Move /boot/boot.cmd to /boot/boot.cmd.bak.
> > 
> > 5. Reboot and check that boot happens properly.
> > 
> > If you already have flash-kernel package and /boot/boot.scr, then simply
> > moving /boot/boot.cmd should fix the situation.
> > 
> 
> Thanks Jonas, Sunil. flash-kernel was indeed missing. However,
> installing, moving boot.cmd did not help, I am still in 4.3.0 (checked
> with uname -r), boot.cmd was not newly generated. I realize that the
> file boot.scr has some non-readable characters at the beginning, this
> was actually already the case before:
> 
> 
> 
> > ...:/boot$ cat boot.scr
> > 'V=�ѠV����#�Bi�setenv mmcdev 0
> > setenv mmcpart 1
> > 
> > setenv mmcroot /dev/mmcblk0p2 ro
> > setenv mmcrootfstype btrfs rootwait fixrtc
> > setenv mmcrootflags subvol=@
> > 
> > setenv console ttyS0,115200n8
> > 
> > setenv kernel_file vmlinuz-4.3.0-1-armmp-lpae
> > setenv initrd_file initrd.img-4.3.0-1-armmp-lpae
> > setenv fdtfile sun7i-a20-olinuxino-lime.dtb
> > ...
> 
> Should I move also boot.scr, then reinstall flash-kernel and restart?

When flash-kernel is installed, it have added a hook to the kernel 
install routines, so instead of moving things around manually it should 
be enough (and safer, and easier to debug) that you afterwards run 
dpkg-reconfigure linux-image-4.8.0-2-armmp-lpae (adjust for the kernel 
you want to reinstall).

As for the stuff it beginning of the file: I believe it is opposite: the 
compiled file as a convenience embeds the cleartext content too at the 
end ;-)


 - Jonas

-- 
 * Jonas Smedegaard - idealist & Internet-arkitekt
 * Tlf.: +45 40843136  Website: http://dr.jones.dk/

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