2012/6/18 Eric Sandeen <sandeen@xxxxxxxxxx>: > On 6/17/12 5:10 PM, Marcos Felipe Rasia de Mello wrote: >> Hi, >> >> Anaconda does not allow put the /boot directory on a XFS filesystem. I >> did a test using the great FSArchiver, which enables you to save an >> image from any supported filesystem (including all data properties and >> attributes) and restoring it into a *different* one (kepping the >> original UUID). >> >> First, I installed Fedora 17 on a single EXT4 partition (no >> RAID/LVM/swap), then inside SystemRescueCd saved the filesystem: >> >> fsarchiver -v -z 2 -j 2 savefs /mnt/windows/fedora.fsa /dev/sda1 # >> /mnt/windows is a CIFS share >> >> To be sure nothing was left from GRUB2: >> >> dd if=/dev/zero of=/dev/sda count=600k >> sync >> parted -s /dev/sda -- mklabel msdos >> parted -s /dev/sda -- mkpart primary xfs 0% 100% >> parted -s /dev/sda -- set 1 boot on >> partprobe /dev/sda >> >> Now, put the filesystem back on XFS: >> >> fsarchiver -v -j 2 restfs /mnt/windows/fedora.fsa id=0,dest=/dev/sda1,mkfs=xfs >> >> Reinstall GRUB2: >> >> mkdir /mnt/fedora >> mount /dev/sda1 /mnt/fedora >> mount --bind /dev /mnt/fedora/dev >> mount --bind /proc /mnt/fedora/proc >> mount --bind /sys /mnt/fedora/sys >> chroot /mnt/fedora /bin/sh >> grub2-install /dev/sda >> exit >> nano /mnt/fedora/etc/fstab # change filesystem type from ext4 to xfs >> umount /mnt/fedora/* /mnt/fedora >> >> Reboot. >> >> All worked fine! XFS /boot... >> >> Digging into xfs mailing list I discovered the problem GRUB has with >> XFS is that it can not be installed *on the partition*, because unlike >> EXT filesystems XFS uses its first sector. Which is a shame for people >> who only install GRUB on the MBR like me. >> >> Would be possible for Anaconda allow XFS at /boot while check for GRUB >> on the partition case? > > You are right that grub must live in the MBR and not on the XFS partition since > XFS uses sector 0. > > Aside from that, old grub code sometimes broke when it tried to read & write > directly from/to the block device while it was mounted. That this even worked > on ext3 was a miracle. ;) I presume grub2 is better, at some point I should > go audit what it's doing I suppose, but your test looks like a good datapoint, > thanks. > Thank you. I look forward to see it working. Marcos _______________________________________________ Anaconda-devel-list mailing list Anaconda-devel-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/anaconda-devel-list
