read only root
OK, this is a bit off the beaten path, but I am working with the regular
Debian for ARM distro.
I'm having a problem getting the system to boot with read-only root.
It seems that somewhere in the startup scripts debian uses /etc/ as a
/tmp directory and to store volatile files. Specifically, the problem
seems to be that debian insists on writing a file, /etc/network/ifstate,
which is critical in bringing up networking. I've tried creating it and
then mounting ro, but somewhere in the boot process / is mounted rw, the
file is deleted, and then / is remounted ro, and networking fails as the
scripts can't create that file.
I think this should be considered a bug in debian startup; scripts
should not use /etc/* to store volatile information; that's what /var is
Before I delve into the startup scripts, is anyone working on changes to
the startup scripts for embedded platforms?
(_)\(_) ,>/'_ o__
Yan Seiner (_)\(_) ,>/'_ o__ o__
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Linux stuff has made big progress over the competition. When things sit and don't start right away, we have a watch, and those poor guys have to settle for an hourglass.