tune2fs -O ea_inode... means system won't boot...

[Peter Silva]

grub 2.12 for jammy?   Any idea how I can get that? I think it might save
me re-installing


On Sun, Oct 15, 2023 at 11:40 PM Peter Silva <peter at bsqt.homeip.net> wrote:

>
> Hi there,
>
> I was working on an app where we use really large extended file
> attributes. So I noticed I was getting errors setting them too large. I
> read up and saw that is a file system dependent limitation, and there is
> this nifty ext4 tuning parameter ea_inode  that lets you have arbitrarily
> large attributes.
>
> ominous foreshadowing: the man page says that tune2fs only supports
> setting this option, not clearing/removing it.
>
> I did the tune2fs -O ea_inode , tried my app, and rejoiced, it works
> perfectly now! when I reboot ...  I am left with a grub prompt...
> if I do ls (hd,gpt4)/   it answers "unknown filesystem" ...
>
> I use a single file system for root and /home and everything ... so that's
> my everything...
>
> I booted from a usb-drive and ran update-grub and friends... but it always
> gives this "unknown filesystem" error... I tried running grub-probe
> manually, and sure enough, it doesn't like my file system.
>
> I thought it was some kind of update-grub thing... but no... I found the
> bug reports... if you set certain flags in your ext4, grub falls over.
> https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=866603
>
> ea_inode is in the list.
>
> I tried clearing the bit tune2fs -O^ea_inode /dev/nvme0n1p4   and you
> remember that note? yeah... it says "Clearing filesystem feature
> "ea_inode" not supported.
>
> so... I think I have to re-install and use a separate file system for /
> vs. /home... good practice anyways... but that sounds like work...
>
> so... maybe grub 2.12 for jammy can save me?  Any ideas on where a
> backport for jammy might be?  I didn't see one.
>
> Other ideas?
>
>
>
>
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