Re: [9fans] Booting from gefs on RPi without the dance?

Re: [9fans] Booting from gefs on RPi without the dance?

[Romano]

experimentech@gmail.com: my mail delivery from this list is delayed so forgive if you have already confirmed it works. This was my cmdline.txt on my pi4 which worked:

console=0 sysname=pipi service=cpu nvram=/dev/sdU5888f/nvram bootargs='local!/dev/sdU5888f/fscache -a tcp!*!564'

So as has been said, the quoting should work.

On Mon, Jun 2, 2025, at 6:22 AM, ori@eigenstate.org wrote:
> no, the raspberry pi bootloader is a special snowflake, so we need
> to use commandline.txt there.
>
> The solution is to quote the arguments in commandline.txt. As Paul
> said:
>
>         nobootprompt='local!/dev/sdN0/fs -A'
>
> is most likely the way you do that. I don't currently have a
> raspberry pi set up to bood plan 9, so I can't test.
>
> Quoth experimentech@gmail.com:
>> On Sunday, June 01, 2025, at 5:40 PM, flux wrote:
>> > The workaround, such as it is, is to put the offending nobootargs into a plan9.ini file
>> If I understand you correctly, the part of cmdline.txt with nobootprompt=local!/dev/sdN0/fs -A should be moved to a newly created file called plan9.ini in the FAT partition.
>> I'm just confirming because I just tried that and it doesn't work.

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Re: [9fans] Booting from gefs on RPi without the dance?

[experimentech]

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Sorry, I hadn't checked back in for a few days.
I confirm the single quotes in CMDLINE.TXT works correctly.
Thank you for the help, everybody.
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Re: [9fans] Booting from gefs on RPi without the dance?

[Steve Simon]

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Re: [9fans] Booting from gefs on RPi without the dance?

[Paul Lalonde]

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I'm afraid I'm still 36 hours away from being able to test this for real,
but you should be able to, in your command line, just put that argument in
single quotes:
>
>   nobootprompt='local!/dev/sdN0/fs -A'

If even doing it in your plan9.ini didn't work, then there's likely
something more than just the -A option causing your grief.
Paul

On Mon, Jun 2, 2025 at 8:36 AM <experimentech@gmail.com> wrote:

> On Sunday, June 01, 2025, at 5:40 PM, flux wrote:
>
> The workaround, such as it is, is to put the offending nobootargs into a
> plan9.ini file
>
> If I understand you correctly, the part of cmdline.txt with nobootprompt=local!/dev/sdN0/fs
> -A should be moved to a newly created file called plan9.ini in the FAT
> partition.
> I'm just confirming because I just tried that and it doesn't work.
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Re: [9fans] Booting from gefs on RPi without the dance?

[ori]

what are the contents of your commandline.txt(?) (I think that's
the place where you configure your command line). The '-A' that
you're adding there should be present.

from what I remember, the commandline.txt format puts all args
on one line, so perhaps there's some quoting needed?

Quoth experimentech@gmail.com:
> The only way I can get my Pi4 to boot from the gefs partition is to delete everything from /srv/gefs first.
> 
> Using -Ac or even just -c doesn't help. It just churns through entries then after a couple of pages fails with a broken pipe.
> 
> This is what I'm faced with every boot. I haven't got a clue how to fix it and haven't had any luck on finding information. Can someone help me with it? It was a huge pain to even set it up with gefs on Pi, and if I can, I want to be able to save it.
> 
> /dev/sdN0: BCM SD Host Controller 02 Version 10
> /dev/sdN0/data  
> /dev/sdN0/dos    dos
> /dev/sdN0/fs     gefs
> /dev/sdN0/nvram
> /dev/sdN0/plan9
> /dev/sdN1: BCM SD Host Controller 02 Version 10
> /dev/sdN2: BCM SD Host Controller 02 Version 10
> bootargs is (tcp, tls, il, local!device)[local!/dev/sdN0/fs]
> 
> 
> load /dev/sdN0/fs:
>         snaptree:       (2bfd70000,547c831736d04994,-1)
>         narenas:        8
>         features:       0
>         nextqid:        30755
>         lastqgen:       213212
>         nextgen:        25862
>         blocksize:      16384
>         cachesz:        2024 MiB
> mount: auth_proxy: auth_proxy read fd: authread -- auth protocol not finished
> mount: mount /root: authread -- auth protocol not finished
> mount /srv/boot /root: mount 1127: mount
> 
> /dev/sdN0: BCM SD Host Controller 02 Version 10
> /dev/sdN0/data  
> /dev/sdN0/dos    dos
> /dev/sdN0/fs     gefs
> /dev/sdN0/nvram
> /dev/sdN0/plan9
> /dev/sdN1: BCM SD Host Controller 02 Version 10
> /dev/sdN2: BCM SD Host Controller 02 Version 10
> 
> bootargs is (tcp, tls, il, local!device)[local!/dev/sdN0/fs] local!/dev/sdN0/fs -A
> load /dev/sdN0/fs:
>         snaptree:       (2bfd70000,547c831736d04994,-1)
>         narenas:        8
>         features:       0
>         nextqid:        30755
>         lastqgen:       213212
>         nextgen:        25862
>         blocksize:      16384
>         cachesz:        2024 MiB
> gefs: create /srv/gefs: file already exists: '/srv/gefs'
> mount: sys: write on closed pipe pc=0x1b088
> mount /srv/boot /root: mount 1404: sys: write on closed pipe pc=0x1b088
> 
> /dev/sdN0: BCM SD Host Controller 02 Version 10
> /dev/sdN0/data  
> /dev/sdN0/dos    dos
> /dev/sdN0/fs     gefs
> /dev/sdN0/nvram
> /dev/sdN0/plan9
> /dev/sdN1: BCM SD Host Controller 02 Version 10
> /dev/sdN2: BCM SD Host Controller 02 Version 10
> bootargs is (tcp, tls, il, local!device)[local!/dev/sdN0/fs] !rc
> % rm -f  /srv/gefs*
> % exit
> 
> bootargs is (tcp, tls, il, local!device)[local!/dev/sdN0/fs] local!/dev/sdN0/fs -A
> load /dev/sdN0/fs:
>         snaptree:       (2bfd70000,547c831736d04994,-1)
>         narenas:        8
>         features:       0
>         nextqid:        30755
>         lastqgen:       213212
>         nextgen:        25862
>         blocksize:      16384
>         cachesz:        2024 MiB
> 
> init: starting /bin/rc
> 

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Re: [9fans] Booting from gefs on RPi without the dance?

[Stuart Morrow]

When you do rm /srv/gefs* you also need to kill the running gefs or
it'll hang around hoarding its 1GB of memory or whatever it is.  So
something like

cd proc
grep gefs */args
echo kill | sed '
w 210/ctl
w 211/ctl
[etc]'

(sed w being the closest thing to tee).

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Re: [9fans] Booting from gefs on RPi without the dance?

[experimentech]

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So I have no idea what happened to it but many of the system executables were missing. Too much functionality was lost so I backed up the files I'd changed and reinstalled. Same issue so we might as well pretend it didn't happen. it just caused a delay in my replying.
ori, cmdline.txt has:
console=0 user=glenda nobootprompt=local!/dev/sdN0/fs -A
The -A doesn't seem to matter because it just runs into /srv/gefs already existing.  Unless I delete that, which I have to do every time, I can't boot it.

Stuart Morrow, Thanks for that. Am I just supposed to be removing the ctl entries, or the other gefs related ones too. It definitely helps. Depending on what I'm doing I can actually hit OOM errors because of gefs stuff not being freed up.
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Re: [9fans] Booting from gefs on RPi without the dance?

[ori]

Quoth experimentech@gmail.com:
> So I have no idea what happened to it but many of the system executables were missing. Too much functionality was lost so I backed up the files I'd changed and reinstalled. Same issue so we might as well pretend it didn't happen. it just caused a delay in my replying.
> ori, cmdline.txt has:
> console=0 user=glenda nobootprompt=local!/dev/sdN0/fs -A

That looks lke the 'local!... -A' argument isn't quoted, which means it'll get split
and won't work. Figure out how cmdline.txt quotes args, and I bet it'd start working.

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