Re: [gentoo-dev] busybox[sep-usr] support for mounting /usr w/out hassle

[Ulrich Mueller]

>>>>> On Mon, 30 Apr 2012, Mike Frysinger wrote:

> On Monday 30 April 2012 12:14:19 Ulrich Mueller wrote:
>> >> > i've added a new USE=sep-usr flag to busybox. when enabled, this
>> >> > will install a static busybox at /ginit (and have the other busybox
>> >> > paths symlink to that so there's no overhead). this new applet has a
>> >> > hand written set of commands to automatically mount /dev /proc /sys
>> >> > /usr and seed /dev, and then execute the real init (defaulting to
>> >> > /sbin/init).
>> >>
>> >> Shouldn't it fsck the /usr partition before mounting it? I don't see
>> >> that in ginit.c.
>> >
>> > it mounts it read-only.  fsck-ing is left to the normal init scripts.
>>
>> Which doesn't work, at least not for ext{2,3,4}. e2fsck contains
>> special handling for the root fs, but it refuses to repair any other
>> mounted file system (even if mounted read-only).

> i believe there's a bug open on the topic. it's not something i
> think belongs in the pre-/usr code.

Hm, bug 410605. I agree that the most systematic approach would be to
fix fsck.*. It should treat other read-only filesystems the same way
it treats the root fs.

Ulrich