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From: Gary Bisson <gary.bisson@boundarydevices.com>
To: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Gary Bisson <bisson.gary@gmail.com>,
	Christian Hitz <christian@klarinett.li>,
	Refik Tuzakli <tuzakli.refik@gmail.com>,
	thomas.petazzoni@bootlin.com, buildroot@buildroot.org,
	Christian Hitz <christian.hitz@bbv.ch>
Subject: Re: [Buildroot] [PATCH] package/freescale-imx/firmware-imx: fix installation with merged usr dirs
Date: Wed, 21 Dec 2022 10:57:23 +0100	[thread overview]
Message-ID: <Y6LYg4Z22P1320e8@p1g2> (raw)
In-Reply-To: <20221221095431.GK2909@scaer>

Hi Yann,

On Wed, Dec 21, 2022 at 10:54:31AM +0100, Yann E. MORIN wrote:
> Gary, All,
> 
> On 2022-12-21 09:32 +0100, Gary Bisson spake thusly:
> > On Tue, Dec 20, 2022 at 02:34:53PM +0100, Christian Hitz wrote:
> > > From: Christian Hitz <christian.hitz@bbv.ch>
> > > 
> > > Currently, the firmware files are installed to /lib/firmware/imx. With
> > > BR2_ROOTFS_MERGED_USR=y /lib is replaced with a symlink to /usr/lib
> > > effectively deleting the installed firmware files.
> > > 
> > > Install the firmware files into the /usr/lib/firmware/imx prefix instead.
> > > 
> > > Signed-off-by: Christian Hitz <christian.hitz@bbv.ch>
> > > ---
> > > Backport to: 2022.02.x, 2022.11.x
> > > ---
> > Thanks for your contribution, looks good to me! That brings the question
> > about linux-firmware that doesn't seem to handle that case either.
> > Thomas, should we have a generic TARGET_FIRMWARE_DIR that switches from
> > /lib/firmware to /usr/lib/firmware automatically? That way it would fix
> > it for all packages at once.
> 
> As I explained in my reply to Christian: this should not be needed,
> because the /lib symlink is created by the skeleton, which are installed
> before any other package. So, all packages should see the proper /lib
> symlink.
> 
> Note that we've introduced merged-usr quite a long time ago now (more
> than 7 years ago!), and it has been used by many people (I included)
> without that issue surfacing so far for linux-firmware, so I'd be
> surprised that there is an actual issue for any of the (well behaved!)
> firmware packages... ;-)

Indeed it makes sense. I wasn't aware of that option so I never tried
it. So my suggestion was only applicable if the problem does exist
indeed. Next time I'll make sure to give it a try ;)

Thanks,
Gary
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  reply	other threads:[~2022-12-21  9:57 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-12-20 13:34 [Buildroot] [PATCH] package/freescale-imx/firmware-imx: fix installation with merged usr dirs Christian Hitz
2022-12-21  8:32 ` Gary Bisson
2022-12-21  9:54   ` Yann E. MORIN
2022-12-21  9:57     ` Gary Bisson [this message]
2022-12-21  9:48 ` Yann E. MORIN

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