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Bug#621803: mountkernfs.sh unconditionally mounts /run

Am 10.05.2011 11:39, schrieb rleigh:
> On Tue, May 10, 2011 at 11:11:20AM +0200, Michael Biebl wrote:
>> Am 09.05.2011 23:40, schrieb rleigh:
>>> On Mon, May 09, 2011 at 10:56:39PM +0200, chris h wrote:
>>>> with initscripts 2.88dsf-13.5 from exp and initramfs-tools maks/run
>>>> there's a new warning during boot:
>>>> mount: can't find /run in /etc/fstab or /etc/mtab
>>>> Apparently this is caused by mountkernfs.sh which assumes that it has
>>>> the authority to mount /run (line 42).
>>>> With the newer initramfs-tools /run gets moved by the initramfs' init,
>>>> but this doesn't make it into the mtab, causing the warning.
>>>> I'm unsure what the correct solution would be...
>>> You need the patch from #621803 applying to the maks/run branch?
>>> Or was this already applied?
>> I can reproduce this issue. I used sysvinit/initscripts 2.88dsf-13.5 and built
>> initramfs-tools from the maks/run branch (a6167ad4d32f56db89989e40d1863887c199cc61)
>> During boot I get
>> mount: can't find /run in /etc/fstab or /etc/mtab
>> mount: can't find /sys in /etc/fstab or /etc/mtab
>> and as a consequence
>> startpar: service(s) returned failure: mountkernfs.sh ... failed!
> I think I know what's going on here, but I'll need to test.  If
> /run and /sys were mounted before reboot, they exist in the old
> /etc/mtab before mtab.sh is run.  If they weren't, the remount
> will fail.  mtab is not cleared until S08checkroot.sh, so
> mountkernfs still sees the old contents.

I only get this error message once: During next reboot after the upgrade, i.e.
/run is mounted by the initramfs but is not (yet) in /etc/mtab.

A simple way to reproduce the issue is to run
: > /etc/mtab
and reboot

> The solution here, if this is the problem, is to comment out the
> remounting until we have eliminated /etc/mtab by symlinking to
> /proc/mounts.

When symlinking /etc/mtab → /proc/self/mounts, I get
Mounting local filesystems... failed


Why is it that all of the instruments seeking intelligent life in the
universe are pointed away from Earth?

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