On 24/10/2019 15:43, Mike Scott wrote:
....
> Conjecture (for now) - ld.so.preload moaned about missing files from
> /usr/lib. But these aren't available until /usr is mounted, which I
> presume must happen /after/ the preload stuff. Maybe I'll go back to the
> original setup and put these files into the root partition, so they're
> present before /usr is mounted. Bet it works then :-}

Yes, that does seem to be the issue.

I put /usr/lib/arm-linux-gnueabihf onto the root partition so it's
available at boot time. It gets mounted over later.

For reference, cmdline.txt contains

console=serial0,115200 console=tty1
root=PARTUUID=b9a242b4-1890-4c02-808b-36961834b2f6 rootfstype=ext4
rootwait rootdelay=15 elevator=deadline fsck.repair=yes rootwait

fstab on the HD root partition is
proc            /proc           proc    defaults          0       0
PARTUUID=6c586e13-01  /boot           vfat    defaults          0       2

# keep root on sd card for now
##PARTUUID=6c586e13-02  /               ext4    defaults,noatime  0       1
# don't forget to update /boot/cmdline.txt to match
PARTLABEL=rootPI0       /               ext4    defaults        0       1

PARTLABEL=usrPI0        /usr            ext4    defaults        0       1
PARTLABEL=varPI0        /var            ext4    defaults        0       1
PARTLABEL=homePI0       /home           ext4    defaults        0       1
PARTLABEL=mmediaPI0     /mmedia         ext4    defaults        0       1

PARTLABEL=swapPI0       none            swap    defaults        0       0


(Although the fstab entry for / isn't used.)



Thanks all.



--
Mike Scott
Harlow, England

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