edit thread 2/1/2012 0509 PST
A day of RTFM and now I understand a lot more about grub2.
Booting fine now.
Well except I keep getting warning when I run grub2-mkconfig / -install
Code:
[root@sombrero ~]# grub2-mkconfig
error: superfluous RAID member (2 found).
error: superfluous RAID member (2 found).
Generating grub.cfg ...
I've recently installed f16 on a pair of identical 750gig sata drives. I created two software raid 1 partitions / and /swap. I created /boot on the first drive and left the remaining disk space on the second physical drive unallocated. This configuration boots and survives updates. I would like to enhance the configuration to allow either drive to boot after the failure of the other.
I created the system in this manner after apparently encountering bug
750794 At the time of encountering this bug I was unsuccessful in attempting to follow the instructions to create the /boot raid partition using the steps outlined. Probably due to my lack of familiarity with the tools I was unable to add to the grub.cfg
Code:
insmod raid
insmod mdraid09
insmod mdraid1x
I implemented the suggestion to make a standard /boot on one of the physical drives and hoped that later I would be able to reconfigure to create a software raid 1 /boot consisting of the functional /boot on the first drive and the identical unallocated drive space on the second physical drive.
I am now looking for guidance on how to accomplish that goal.
fyi:
Code:
uname -a
Linux sombrero 3.2.2-1.fc16.x86_64 #1 SMP Thu Jan 26 03:21:58 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux
Code:
[root@sombrero grub2]# mount
proc on /proc type proc (rw,nosuid,nodev,noexec,relatime)
sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime,seclabel)
devtmpfs on /dev type devtmpfs (rw,nosuid,relatime,seclabel,size=886844k,nr_inodes=221711,mode=755)
devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,seclabel,gid=5,mode=620,ptmxmode=000)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev,relatime,seclabel)
/dev/md1 on / type ext4 (rw,relatime,seclabel,user_xattr,barrier=1,data=ordered)
tmpfs on /run type tmpfs (rw,nosuid,nodev,relatime,seclabel,mode=755)
selinuxfs on /sys/fs/selinux type selinuxfs (rw,relatime)
tmpfs on /sys/fs/cgroup type tmpfs (rw,nosuid,nodev,noexec,relatime,seclabel,mode=755)
cgroup on /sys/fs/cgroup/systemd type cgroup (rw,nosuid,nodev,noexec,relatime,release_agent=/lib/systemd/systemd-cgroups-agent,name=systemd)
cgroup on /sys/fs/cgroup/cpuset type cgroup (rw,nosuid,nodev,noexec,relatime,cpuset)
cgroup on /sys/fs/cgroup/cpu,cpuacct type cgroup (rw,nosuid,nodev,noexec,relatime,cpuacct,cpu)
cgroup on /sys/fs/cgroup/memory type cgroup (rw,nosuid,nodev,noexec,relatime,memory)
cgroup on /sys/fs/cgroup/devices type cgroup (rw,nosuid,nodev,noexec,relatime,devices)
cgroup on /sys/fs/cgroup/freezer type cgroup (rw,nosuid,nodev,noexec,relatime,freezer)
cgroup on /sys/fs/cgroup/net_cls type cgroup (rw,nosuid,nodev,noexec,relatime,net_cls)
cgroup on /sys/fs/cgroup/blkio type cgroup (rw,nosuid,nodev,noexec,relatime,blkio)
cgroup on /sys/fs/cgroup/perf_event type cgroup (rw,nosuid,nodev,noexec,relatime,perf_event)
systemd-1 on /proc/sys/fs/binfmt_misc type autofs (rw,relatime,fd=21,pgrp=1,timeout=300,minproto=5,maxproto=5,direct)
securityfs on /sys/kernel/security type securityfs (rw,relatime)
hugetlbfs on /dev/hugepages type hugetlbfs (rw,relatime,seclabel)
debugfs on /sys/kernel/debug type debugfs (rw,relatime)
mqueue on /dev/mqueue type mqueue (rw,relatime,seclabel)
tmpfs on /media type tmpfs (rw,nosuid,nodev,noexec,relatime,rootcontext=system_u:object_r:mnt_t:s0,seclabel,mode=755)
configfs on /sys/kernel/config type configfs (rw,relatime)
/dev/sda3 on /boot type ext4 (rw,relatime,seclabel,user_xattr,acl,barrier=1,data=ordered)
fusectl on /sys/fs/fuse/connections type fusectl (rw,relatime)
gvfs-fuse-daemon on /home/jeffa/.gvfs type fuse.gvfs-fuse-daemon (rw,nosuid,nodev,relatime,user_id=1000,group_id=1000)
[root@sombrero grub2]#
---------- Post added at 06:01 PM ---------- Previous post was at 10:43 AM ----------
By reading these resources I've been able to create a raid 1 /boot array I have /md2 mounted at /boot
http://www.howtoforge.com/software-r...ot-debian-etch
https://wiki.archlinux.org/index.php...system_to_RAID
I have a few questions before I attempt to reboot regarding fstab, initramfs, and grub configuration.
Code:
[root@sombrero ~]# cat /proc/mdstat
Personalities : [raid1]
md2 : active raid1 sda3[0] sdb3[1]
2047936 blocks [2/2] [UU]
md1 : active raid1 sdb1[1] sda1[0]
722331512 blocks super 1.2 [2/2] [UU]
bitmap: 1/6 pages [4KB], 65536KB chunk
md0 : active raid1 sda2[0] sdb2[1]
8190964 blocks super 1.2 [2/2] [UU]
unused devices: <none>
[root@sombrero ~]# df -h
Filesystem Size Used Avail Use% Mounted on
rootfs 689G 19G 663G 3% /
devtmpfs 867M 4.0K 867M 1% /dev
tmpfs 876M 92K 876M 1% /dev/shm
/dev/md1 689G 19G 663G 3% /
tmpfs 876M 49M 827M 6% /run
tmpfs 876M 0 876M 0% /sys/fs/cgroup
tmpfs 876M 0 876M 0% /media
/dev/md2 2.0G 207M 1.7G 11% /boot
[root@sombrero ~]#
How about the fstab? check the output from mdadm --examine --scan that I used to deduce the UUID to put in fstab
Code:
[root@sombrero ~]# mdadm --examine --scan
ARRAY /dev/md/1 metadata=1.2 UUID=5d0f75a7:f48cea35:a8cc7fbe:ff66fae3 name=sombrero.jeffa.org:1
ARRAY /dev/md/0 metadata=1.2 UUID=acd4ec99:fcf4dc58:dece9066:f0408283 name=sombrero.jeffa.org:0
ARRAY /dev/md2 UUID=70659bfe:b5ce2886:9bd9e8df:1f805439
[root@sombrero ~]# cat /etc/fstab
#
# /etc/fstab
# Created by anaconda on Fri Jan 27 17:03:08 2012
#
# Accessible filesystems, by reference, are maintained under '/dev/disk'
# See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info
#
UUID=d1bd6407-983a-4724-9229-7c0f456df5a8 / ext4 defaults 1 1
# UUID=9be0ca6c-d097-4922-bed2-d650427e6982 /boot ext4 defaults 1 2
UUID=70659bfe-b5ce2886-9bd9e8df-1f805439 /boot ext4 defaults 1 2
UUID=9928542f-6914-4561-92d5-0c4b356bc408 swap swap defaults 0 0
[root@sombrero ~]#
There is an artifact of my testing and learning on my desktop an icon for: "RAID-ONE-BOOT" Where does it live? How can I remove it?
Code:
[root@sombrero ~]# blkid
/dev/sda1: UUID="5d0f75a7-f48c-ea35-a8cc-7fbeff66fae3" UUID_SUB="10a62d6c-800d-93d8-0b85-ba1feacb3548" LABEL="sombrero.jeffa.org:1" TYPE="linux_raid_member"
/dev/sda2: UUID="acd4ec99-fcf4-dc58-dece-9066f0408283" UUID_SUB="8c371940-94c5-8f80-da8b-0f75b0dfaace" LABEL="sombrero.jeffa.org:0" TYPE="linux_raid_member"
/dev/sda3: UUID="9be0ca6c-d097-4922-bed2-d650427e6982" TYPE="ext4" LABEL="RAID-ONE-BOOT"
/dev/sdb1: UUID="5d0f75a7-f48c-ea35-a8cc-7fbeff66fae3" UUID_SUB="c170853d-c171-eca6-ef31-9337ebd42984" LABEL="sombrero.jeffa.org:1" TYPE="linux_raid_member"
/dev/sdb2: UUID="acd4ec99-fcf4-dc58-dece-9066f0408283" UUID_SUB="cf450899-ac06-1045-2d74-56658fde9e75" LABEL="sombrero.jeffa.org:0" TYPE="linux_raid_member"
/dev/md0: UUID="9928542f-6914-4561-92d5-0c4b356bc408" TYPE="swap"
/dev/md1: LABEL="_Fedora-16-x86_6" UUID="d1bd6407-983a-4724-9229-7c0f456df5a8" TYPE="ext4"
/dev/sdb3: UUID="70659bfe-b5ce-2886-9bd9-e8df1f805439" TYPE="linux_raid_member"
/dev/md2: LABEL="RAID-ONE-BOOT" UUID="9be0ca6c-d097-4922-bed2-d650427e6982" TYPE="ext4"
[root@sombrero ~]#
I'm starting to feel a bit lost while trying to update grub configuration. How can I update the: "initramfs"
Comments, suggestions welcome. Thanks.
Linear Mode
