On Thu, Apr 5, 2012 at 2:50 PM, Canek Peláez Valdés <can...@gmail.com> wrote: > On Thu, Apr 5, 2012 at 1:32 PM, Joost Roeleveld <jo...@antarean.org> wrote: >> On Thursday, April 05, 2012 01:10:46 PM Canek Peláez Valdés wrote: >>> On Thu, Apr 5, 2012 at 2:47 AM, 张春江 <zhangchunjian...@126.com> wrote: >>> 2. GRUB cannot read ext4 partitions (GRUB2 can), so you are reading >>> them as ext3 (I don't know if this can cause any problems). The reason >>> I started to use GRUB2 was because I wanted to use ext4 for my /. >> >> I don't think ext4 and ext3 use the same disk layout, eg. I don't think that >> can work. > > ext4 is fully backwards compatible with ext3, obviously; otherwise 张春江 > would not be able to boot his system.
Not exactly. If you use them, ext4 adds structures and features which means the filesystem isn't liked by ext3-only code. I don't remember which these are, I just know I tended to accidentally enable them while tweaking filesystems with tune2fs. Just noting this for clarity. -- :wq
