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

[Peter Silva]

fwiw. I re-installed on another disk, and mounted the old / as /home. back
in business.


On Mon, Oct 16, 2023 at 12:39 PM Peter Silva <peter at bsqt.homeip.net> wrote:

> 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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