Ubuntu
mountall package

How/when does upstart remount / rw?

Asked by Ian

I am running Ubuntu 9.10 (Karmic Koala) and investigating upstart.

I am trying to find what script/program remounts the root file system rw, but I can't find it anywhere. I am thinking it might be an undocumented feature of mountall, but haven't read the source yet.

Can anyone tell me what is doing the remount?

Thanks,
Ian

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Ian (ian-goodacre) said : 		#1

I downloaded the source of mountall and it appears that it does remount file systems that have been mounted ro (read only). I haven't reviewed the source carefully enough to be completely certain nor added/enabled debug logging to confirm mountall is doing this for the root file system, but it seems mountall runs fsck, if requested/required, and then remounts file systems mounted ro, unless they have the ro option in /etc/fstab.