From: Marco Gerards <metgerards@student.han.nl>
To: The development of GRUB 2 <grub-devel@gnu.org>
Subject: Re: [DISCUSSION] Journal playback
Date: Mon, 08 Aug 2005 13:46:58 +0200 [thread overview]
Message-ID: <87fytkfy6l.fsf@student.han.nl> (raw)
In-Reply-To: <42F72A1A.3090605@gmail.com> (Vladimir Serbinenko's message of "Mon, 08 Aug 2005 11:47:06 +0200")
Vladimir Serbinenko <phcoder@gmail.com> writes:
> I've seen that journal playback is one of TODO items. I think it's bad
> idea because:
>
> 1) It'll increase the size of FS modules. And fs modules are often embed
> in core image. So their size is critical
The size of a filesystem module is now about 4KB. We do not know yet
how much the size will increase when journaling is possible.
> 2) It'll decrease safety because now GRUB doesn't write to FS and then
> it'll be so the GRUB's bugs could damage FS.
> 3) It'll be impossible to use resume/resume2 because the fs environment
> is not more the same as at the hibernation.
The data should not be written to the filesystem. Instead the
journal should be played back for the data that is read. I am not yet
sure if it is possible, easy and fast enough. But I do think it is
worthwhile to consider journaling support.
--
Marco
next prev parent reply other threads:[~2005-08-08 12:03 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-08-08 9:47 [DISCUSSION] Journal playback Vladimir Serbinenko
2005-08-08 11:34 ` Vincent Pelletier
2005-08-08 11:46 ` Marco Gerards [this message]
2005-08-08 12:27 ` Vladimir Serbinenko
2005-08-08 14:14 ` Marco Gerards
2005-08-08 14:54 ` Yoshinori K. Okuji
2005-08-08 14:49 ` Yoshinori K. Okuji
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