'Twas brillig, and Frank Griffin at 16/01/13 16:03 did gyre and gimble: > I've been re-running /boot/grub/install.sh from within chroots for years > with no problem. But today when I tried doing this, I consistently got > Error 21: no such device. After googling a bit, I noticed that if I > started grub in the rescue system and did "grub> geometry (hd0)", I got > a correct response, but when I did the same thing from a chroot, it got > Error 21. > > If I bind-mount the rescue system's /dev to the chroot's /dev, it works > fine. > > This makes perfect sense, except for the fact that I've never had to do > it before. Any idea what changed ? This has the potential to screw up > a lot of folks who were used to the old way. > > Maybe /dev/sdX entries are no longer static, and so don't exist on the > root partition unless it is the booted system ?
It's quite possible that the lack of static nodes is what's messing things up. Personally I've been bind mounting /dev, /proc and /sys for years whenever doing any rescuecd etc. stuff. Partly because I have several LVM volumes where a static /dev/ wouldn't help anyway... But bind mounting /dev has just been part of my chroot routine for as long as I remember. Col -- Colin Guthrie colin(at)mageia.org http://colin.guthr.ie/ Day Job: Tribalogic Limited http://www.tribalogic.net/ Open Source: Mageia Contributor http://www.mageia.org/ PulseAudio Hacker http://www.pulseaudio.org/ Trac Hacker http://trac.edgewall.org/
