F20 -> F21 netinstall raid1 does not find /dev/root

dwoody5654 dwoody5654 at gmail.com
Sun Jul 12 19:33:08 UTC 2015 

On 07/12/2015 01:37 PM, Chris Murphy wrote:
> On Sun, Jul 12, 2015 at 10:33 AM, dwoody5654 <dwoody5654 at gmail.com> wrote:
>> I have done several netinstalls on other computers with no problem.
>> However, the computer I am having a problem with has raid1.
>> For the set root entry I have tried:
>> copied set root from other menu entries
>> set root='hd0,msdos1'
>> When the error message no /dev/root drops to dracut I have done
>> 'ls -l /dev/by-label*' and set root = to the uuid
>>
>> All with no luck in getting past the /dev/root error
>>
>> Searching for a solution to this problem has found nothing.
>>
>> What am I missing?
> I don't understand if you're getting this post-install, or when
> booting the netinstall media on a system with pre-existing mdadm
> raid1? You shouldn't have to make any modifications to the grub menu
> entry in either case, so I don't know why you think you need to do
> that.
Thanks for your reply.
Sorry for not including enough info in first post.

I created a menu entry in the current F20 grub.cfg with menu_entry name 
of 'Remote Install'. So I boot to the netinstall from F20. This has been 
working up until the current issue. The 2 pertinent lines are:
linux /boot/vmlinuz-remote 
repo=hd:md126:/david/Fedora-Server-netinst-i386-21.iso noselinux 
ks.device=00:14:6c:55:f1:85 ks=hd:md126:/david/ks.cfg --noip6 
ramdisk_size=8192 panic=30
initrd  /boot/initrd-remote.img

The set root line is what I think I do not have set correctly. The 
/dev/root error comes up during the initial netinstall boot up.
The file rdsosreport.txt is below.
> The fact you're getting to a dracut prompt suggests this is not a
> problem with the bootloader not finding its root (set root in GRUB
> speak is referring to its root, i.e. the device and partition that
> /boot/grub2 is located on); it's sounding more like a problem with
> mounting sysroot, which suggests either a problem with the grub
> root=UUID= value (which should be for the fs volume UUID as reported
> by blkid, not a partition UUID), or a problem with fstab, or a problem
> with assembling the raid.
>
> Most useful would be putting the rdsosreport.txt that dracut usually
> prepares in such cases, it will tell you at the dracut prompt where
> this is, it should be in /run/, but if one isn't generated maybe most
> of the useful information can be found with:
>
> journalctl -b -l -o short-monotonic > journal.log
> blkid > blkid.txt
>
> scp those somewhere, or copy to usb stick, and then post them
> somewhere and then a URL in this thread where to find them.
>
Do not have a place to post a file and reference it by url.

The sdc1 is the flash drive I used to save a copy of the rdsosreport.txt to.

The file contents for rdsosreport.txt is:

+ cat /lib/dracut/dracut-038-30.git20140903.fc21
dracut-038-30.git20140903.fc21
+ cat /proc/cmdline
BOOT_IMAGE=/boot/vmlinuz-remote 
repo=hd:md126:/david/Fedora-Server-netinst-i386-21.iso noselinux 
ks.device=00:14:6c:55:f1:85 ks=hd:md126:/david/ks.cfg --noip6 
ramdisk_size=8192 panic=30
+ '[' -f /etc/cmdline ']'
+ for _i in '/etc/cmdline.d/*.conf'
+ '[' -f /etc/cmdline.d/99-anaconda-disable-disk-activation.conf ']'
+ echo /etc/cmdline.d/99-anaconda-disable-disk-activation.conf
/etc/cmdline.d/99-anaconda-disable-disk-activation.conf
+ cat /etc/cmdline.d/99-anaconda-disable-disk-activation.conf
rd.dm=0
rd.md=0
rd.lvm=0
rd.luks=0
+ cat /proc/self/mountinfo
1 1 0:2 / / rw shared:1 - rootfs rootfs rw,size=1659784k,nr_inodes=204355
15 1 0:15 / /sys rw,nosuid,nodev,noexec,relatime shared:2 - sysfs sysfs rw
16 1 0:4 / /proc rw,nosuid,nodev,noexec,relatime shared:7 - proc proc rw
17 1 0:5 / /dev rw,nosuid shared:8 - devtmpfs devtmpfs 
rw,size=1659796k,nr_inodes=204361,mode=755
18 15 0:16 / /sys/kernel/security rw,nosuid,nodev,noexec,relatime 
shared:3 - securityfs securityfs rw
19 17 0:17 / /dev/shm rw,nosuid,nodev shared:9 - tmpfs tmpfs rw
20 17 0:11 / /dev/pts rw,nosuid,noexec,relatime shared:10 - devpts 
devpts rw,gid=5,mode=620,ptmxmode=000
21 1 0:18 / /run rw,nosuid,nodev shared:11 - tmpfs tmpfs rw,mode=755
22 15 0:19 / /sys/fs/cgroup ro,nosuid,nodev,noexec shared:4 - tmpfs 
tmpfs ro,mode=755
23 22 0:20 / /sys/fs/cgroup/systemd rw,nosuid,nodev,noexec,relatime 
shared:5 - cgroup cgroup 
rw,xattr,release_agent=/usr/lib/systemd/systemd-cgroups-agent,name=systemd
24 15 0:21 / /sys/fs/pstore rw,nosuid,nodev,noexec,relatime shared:6 - 
pstore pstore rw
25 22 0:22 / /sys/fs/cgroup/cpuset rw,nosuid,nodev,noexec,relatime 
shared:12 - cgroup cgroup rw,cpuset
26 22 0:23 / /sys/fs/cgroup/cpu,cpuacct rw,nosuid,nodev,noexec,relatime 
shared:13 - cgroup cgroup rw,cpu,cpuacct
27 22 0:24 / /sys/fs/cgroup/memory rw,nosuid,nodev,noexec,relatime 
shared:14 - cgroup cgroup rw,memory
28 22 0:25 / /sys/fs/cgroup/devices rw,nosuid,nodev,noexec,relatime 
shared:15 - cgroup cgroup rw,devices
29 22 0:26 / /sys/fs/cgroup/freezer rw,nosuid,nodev,noexec,relatime 
shared:16 - cgroup cgroup rw,freezer
30 22 0:27 / /sys/fs/cgroup/net_cls,net_prio 
rw,nosuid,nodev,noexec,relatime shared:17 - cgroup cgroup 
rw,net_cls,net_prio
31 22 0:28 / /sys/fs/cgroup/blkio rw,nosuid,nodev,noexec,relatime 
shared:18 - cgroup cgroup rw,blkio
32 22 0:29 / /sys/fs/cgroup/perf_event rw,nosuid,nodev,noexec,relatime 
shared:19 - cgroup cgroup rw,perf_event
33 1 0:30 / /var/lib/nfs/rpc_pipefs rw,relatime shared:20 - rpc_pipefs 
rpc_pipefs rw
55 15 0:32 / /sys/kernel/config rw,relatime shared:21 - configfs configfs rw
+ cat /proc/mounts
rootfs / rootfs rw,size=1659784k,nr_inodes=204355 0 0
sysfs /sys sysfs rw,nosuid,nodev,noexec,relatime 0 0
proc /proc proc rw,nosuid,nodev,noexec,relatime 0 0
devtmpfs /dev devtmpfs rw,nosuid,size=1659796k,nr_inodes=204361,mode=755 0 0
securityfs /sys/kernel/security securityfs 
rw,nosuid,nodev,noexec,relatime 0 0
tmpfs /dev/shm tmpfs rw,nosuid,nodev 0 0
devpts /dev/pts devpts 
rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000 0 0
tmpfs /run tmpfs rw,nosuid,nodev,mode=755 0 0
tmpfs /sys/fs/cgroup tmpfs ro,nosuid,nodev,noexec,mode=755 0 0
cgroup /sys/fs/cgroup/systemd cgroup 
rw,nosuid,nodev,noexec,relatime,xattr,release_agent=/usr/lib/systemd/systemd-cgroups-agent,name=systemd 
0 0
pstore /sys/fs/pstore pstore rw,nosuid,nodev,noexec,relatime 0 0
cgroup /sys/fs/cgroup/cpuset cgroup 
rw,nosuid,nodev,noexec,relatime,cpuset 0 0
cgroup /sys/fs/cgroup/cpu,cpuacct cgroup 
rw,nosuid,nodev,noexec,relatime,cpu,cpuacct 0 0
cgroup /sys/fs/cgroup/memory cgroup 
rw,nosuid,nodev,noexec,relatime,memory 0 0
cgroup /sys/fs/cgroup/devices cgroup 
rw,nosuid,nodev,noexec,relatime,devices 0 0
cgroup /sys/fs/cgroup/freezer cgroup 
rw,nosuid,nodev,noexec,relatime,freezer 0 0
cgroup /sys/fs/cgroup/net_cls,net_prio cgroup 
rw,nosuid,nodev,noexec,relatime,net_cls,net_prio 0 0
cgroup /sys/fs/cgroup/blkio cgroup rw,nosuid,nodev,noexec,relatime,blkio 0 0
cgroup /sys/fs/cgroup/perf_event cgroup 
rw,nosuid,nodev,noexec,relatime,perf_event 0 0
rpc_pipefs /var/lib/nfs/rpc_pipefs rpc_pipefs rw,relatime 0 0
configfs /sys/kernel/config configfs rw,relatime 0 0
+ blkid
/dev/sda1: UUID="2b912a3c-ecac-4551-ea43-d2f031ce1e57" 
UUID_SUB="1d86f129-3945-c0f3-a875-1d0c37c7a5fd" 
LABEL="star11.home.com:root" TYPE="linux_raid_member" PARTUUID="00072692-01"
/dev/sda2: UUID="a92ca2fd-998f-d542-feb8-59fa8bd7ab33" 
UUID_SUB="74923772-ac33-195b-aaf3-28c64a08b7a3" 
LABEL="star11.home.com:home" TYPE="linux_raid_member" PARTUUID="00072692-02"
/dev/sdb1: UUID="2b912a3c-ecac-4551-ea43-d2f031ce1e57" 
UUID_SUB="203b9602-aa3d-5ef1-d457-ad02b99eac03" 
LABEL="star11.home.com:root" TYPE="linux_raid_member" PARTUUID="0009d086-01"
/dev/sdb2: UUID="a92ca2fd-998f-d542-feb8-59fa8bd7ab33" 
UUID_SUB="d0b6524a-2250-776b-95c3-b0502ba2d0d4" 
LABEL="star11.home.com:home" TYPE="linux_raid_member" PARTUUID="0009d086-02"
/dev/sdc1: UUID="a9682244-3d0f-4469-ae80-5d6ef5fd148f" TYPE="ext2" 
PARTUUID="c3072e18-01"
+ blkid -o udev
ID_FS_UUID=2b912a3c-ecac-4551-ea43-d2f031ce1e57
ID_FS_UUID_ENC=2b912a3c-ecac-4551-ea43-d2f031ce1e57
ID_FS_UUID_SUB=1d86f129-3945-c0f3-a875-1d0c37c7a5fd
ID_FS_UUID_SUB_ENC=1d86f129-3945-c0f3-a875-1d0c37c7a5fd
ID_FS_LABEL=star11.home.com:root
ID_FS_LABEL_ENC=star11.home.com:root
ID_FS_TYPE=linux_raid_member
ID_FS_PARTUUID=00072692-01

ID_FS_UUID=a92ca2fd-998f-d542-feb8-59fa8bd7ab33
ID_FS_UUID_ENC=a92ca2fd-998f-d542-feb8-59fa8bd7ab33
ID_FS_UUID_SUB=74923772-ac33-195b-aaf3-28c64a08b7a3
ID_FS_UUID_SUB_ENC=74923772-ac33-195b-aaf3-28c64a08b7a3
ID_FS_LABEL=star11.home.com:home
ID_FS_LABEL_ENC=star11.home.com:home
ID_FS_TYPE=linux_raid_member
ID_FS_PARTUUID=00072692-02

ID_FS_UUID=2b912a3c-ecac-4551-ea43-d2f031ce1e57
ID_FS_UUID_ENC=2b912a3c-ecac-4551-ea43-d2f031ce1e57
ID_FS_UUID_SUB=203b9602-aa3d-5ef1-d457-ad02b99eac03
ID_FS_UUID_SUB_ENC=203b9602-aa3d-5ef1-d457-ad02b99eac03
ID_FS_LABEL=star11.home.com:root
ID_FS_LABEL_ENC=star11.home.com:root
ID_FS_TYPE=linux_raid_member
ID_FS_PARTUUID=0009d086-01

ID_FS_UUID=a92ca2fd-998f-d542-feb8-59fa8bd7ab33
ID_FS_UUID_ENC=a92ca2fd-998f-d542-feb8-59fa8bd7ab33
ID_FS_UUID_SUB=d0b6524a-2250-776b-95c3-b0502ba2d0d4
ID_FS_UUID_SUB_ENC=d0b6524a-2250-776b-95c3-b0502ba2d0d4
ID_FS_LABEL=star11.home.com:home
ID_FS_LABEL_ENC=star11.home.com:home
ID_FS_TYPE=linux_raid_member
ID_FS_PARTUUID=0009d086-02

ID_FS_UUID=a9682244-3d0f-4469-ae80-5d6ef5fd148f
ID_FS_UUID_ENC=a9682244-3d0f-4469-ae80-5d6ef5fd148f
ID_FS_TYPE=ext2
ID_FS_PARTUUID=c3072e18-01
+ ls -l /dev/disk/by-id /dev/disk/by-path /dev/disk/by-uuid
/dev/disk/by-id:
total 0
lrwxrwxrwx 1 root 0  9 Jul 12 18:45 ata-HL-DT-STDVD-RAM_GSA-H55L -> 
../../sr0
lrwxrwxrwx 1 root 0  9 Jul 12 18:45 ata-ST1000DM003-1CH162_S1DH17X6 -> 
../../sdb
lrwxrwxrwx 1 root 0 10 Jul 12 18:45 
ata-ST1000DM003-1CH162_S1DH17X6-part1 -> ../../sdb1
lrwxrwxrwx 1 root 0 10 Jul 12 18:45 
ata-ST1000DM003-1CH162_S1DH17X6-part2 -> ../../sdb2
lrwxrwxrwx 1 root 0  9 Jul 12 18:45 ata-ST1000DM003-1CH162_Z1D81JHH -> 
../../sda
lrwxrwxrwx 1 root 0 10 Jul 12 18:45 
ata-ST1000DM003-1CH162_Z1D81JHH-part1 -> ../../sda1
lrwxrwxrwx 1 root 0 10 Jul 12 18:45 
ata-ST1000DM003-1CH162_Z1D81JHH-part2 -> ../../sda2
lrwxrwxrwx 1 root 0  9 Jul 12 18:45 
usb-_Patriot_Memory_070826F26C1B6391-0:0 -> ../../sdc
lrwxrwxrwx 1 root 0 10 Jul 12 18:45 
usb-_Patriot_Memory_070826F26C1B6391-0:0-part1 -> ../../sdc1
lrwxrwxrwx 1 root 0  9 Jul 12 18:45 wwn-0x5000c50065676574 -> ../../sda
lrwxrwxrwx 1 root 0 10 Jul 12 18:45 wwn-0x5000c50065676574-part1 -> 
../../sda1
lrwxrwxrwx 1 root 0 10 Jul 12 18:45 wwn-0x5000c50065676574-part2 -> 
../../sda2
lrwxrwxrwx 1 root 0  9 Jul 12 18:45 wwn-0x5000c5006d65acfc -> ../../sdb
lrwxrwxrwx 1 root 0 10 Jul 12 18:45 wwn-0x5000c5006d65acfc-part1 -> 
../../sdb1
lrwxrwxrwx 1 root 0 10 Jul 12 18:45 wwn-0x5000c5006d65acfc-part2 -> 
../../sdb2

/dev/disk/by-path:
total 0
lrwxrwxrwx 1 root 0  9 Jul 12 18:45 
pci-0000:00:13.2-usb-0:4:1.0-scsi-0:0:0:0 -> ../../sdc
lrwxrwxrwx 1 root 0 10 Jul 12 18:45 
pci-0000:00:13.2-usb-0:4:1.0-scsi-0:0:0:0-part1 -> ../../sdc1

/dev/disk/by-uuid:
total 0
lrwxrwxrwx 1 root 0 10 Jul 12 18:45 a9682244-3d0f-4469-ae80-5d6ef5fd148f 
-> ../../sdc1
+ for _i in '/etc/conf.d/*.conf'
+ '[' -f /etc/conf.d/systemd.conf ']'
+ echo /etc/conf.d/systemd.conf
/etc/conf.d/systemd.conf
+ cat /etc/conf.d/systemd.conf
systemdutildir="/usr/lib/systemd"
systemdsystemunitdir="/usr/lib/systemd/system"
systemdsystemconfdir="/etc/systemd/system"
+ command -v lvm
+ lvm pvdisplay

Thanks a lot for your help,

David

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