Problem unmounting initrd-romfs in 2.4.21

Problem unmounting initrd-romfs in 2.4.21

[Tobias Reinhard]

Hi all!

I'm booting up with a initrd in a romfs. After loading all needed
modules and pivoting root I unmount the initrd and flush the used
buffers.

Since I updated to 2.4.21 I can't unmount the initrd - it says it's
busy, but it's no (or at least lsof does say so).

I use kernel 2.4.21 with /drivers/Makefile , /drivers/ide and
/include/linux/ide.h from ac1 to reenable ide-modules.

Anyone know the problem?

Tobias

Re: Problem unmounting initrd-romfs in 2.4.21

[Andreas Haumer]

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Hi!

Tobias Reinhard wrote:
> Hi all!
>
> I'm booting up with a initrd in a romfs. After loading all needed
> modules and pivoting root I unmount the initrd and flush the used
> buffers.
>
> Since I updated to 2.4.21 I can't unmount the initrd - it says it's
> busy, but it's no (or at least lsof does say so).
>
> I use kernel 2.4.21 with /drivers/Makefile , /drivers/ide and
> /include/linux/ide.h from ac1 to reenable ide-modules.
>
> Anyone know the problem?
>
Hm, just a guess: do you have devfs mounted to /dev
on the initial ramdisk (probably automounted by the
kernel, with config option CONFIG_DEVFS_MOUNT=y)?

Check the output of "mount", it'll show you if there's
still something mounted under the "old" root.

We use initrd + devfs for ages now (we even use romfs for
initrd like you do), and it works fine with 2.4.21 too.

HTH

- - andreas

- --
Andreas Haumer                     | mailto:andreas@xss.co.at
*x Software + Systeme              | http://www.xss.co.at/
Karmarschgasse 51/2/20             | Tel: +43-1-6060114-0
A-1100 Vienna, Austria             | Fax: +43-1-6060114-71
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