<div dir="ltr"><br><div class="gmail_extra"><br><div class="gmail_quote">On Sat, Aug 29, 2015 at 9:30 PM, Lennart Sorensen <span dir="ltr"><<a href="mailto:lsorense@csclub.uwaterloo.ca" target="_blank">lsorense@csclub.uwaterloo.ca</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><span class="">On Sat, Aug 29, 2015 at 06:15:35PM -0500, o1bigtenor wrote:<br>
> On Sat, Aug 29, 2015 at 4:40 PM, William Park <<a href="mailto:opengeometry@yahoo.ca">opengeometry@yahoo.ca</a>> wrote:<br>
><br>
> > On Sat, Aug 29, 2015 at 05:37:01AM -0500, o1bigtenor wrote:<br>
> > > Greetings<br>
> > ><br>
> > > I don't know what's going on but this is weird!<br>
> > ><br>
> > > System has been running Debian 8 with things going good (raid mounts so<br>
> > so<br>
> > > when saving a file after a reboot all I need to do is click on the listed<br>
> > > array give the root password and bob's your uncle).<br>
> > ><br>
> > > (Its a uefi setup)<br>
> > > Well this morning - - -<br>
> > > fdisk -l shows the array<br>
> > > its not mounted<br>
> ><br>
> > fdisk doesn't know anything about what is mounted and where. For<br>
> > mounted stuffs, try<br>
> > - df, mount, lsblk -f<br>
> > - /proc/mounts, /etc/mtab<br>
> ><br>
><br>
> df<br>
><br>
> command not found<br>
<br>
</span>Weird.<br>
<div><div class="h5"><br>
> mount<br>
><br>
> # mount<br>
> sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime)<br>
> proc on /proc type proc (rw,nosuid,nodev,noexec,relatime)<br>
> udev on /dev type devtmpfs<br>
> (rw,relatime,size=10240k,nr_inodes=8242416,mode=755)<br>
> devpts on /dev/pts type devpts<br>
> (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000)<br>
> tmpfs on /run type tmpfs (rw,nosuid,relatime,size=13191704k,mode=755)<br>
> /dev/sda3 on / type ext4 (rw,relatime,errors=remount-ro,data=ordered)<br>
> securityfs on /sys/kernel/security type securityfs<br>
> (rw,nosuid,nodev,noexec,relatime)<br>
> tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev)<br>
> tmpfs on /run/lock type tmpfs (rw,nosuid,nodev,noexec,relatime,size=5120k)<br>
> tmpfs on /sys/fs/cgroup type tmpfs (ro,nosuid,nodev,noexec,mode=755)<br>
> cgroup on /sys/fs/cgroup/systemd type cgroup<br>
> (rw,nosuid,nodev,noexec,relatime,xattr,release_agent=/lib/systemd/systemd-cgroups-agent,name=systemd)<br>
> pstore on /sys/fs/pstore type pstore (rw,nosuid,nodev,noexec,relatime)<br>
> efivarfs on /sys/firmware/efi/efivars type efivarfs<br>
> (rw,nosuid,nodev,noexec,relatime)<br>
> cgroup on /sys/fs/cgroup/blkio type cgroup<br>
> (rw,nosuid,nodev,noexec,relatime,blkio)<br>
> cgroup on /sys/fs/cgroup/freezer type cgroup<br>
> (rw,nosuid,nodev,noexec,relatime,freezer)<br>
> cgroup on /sys/fs/cgroup/cpuset type cgroup<br>
> (rw,nosuid,nodev,noexec,relatime,cpuset)<br>
> cgroup on /sys/fs/cgroup/cpu,cpuacct type cgroup<br>
> (rw,nosuid,nodev,noexec,relatime,cpu,cpuacct)<br>
> cgroup on /sys/fs/cgroup/net_cls,net_prio type cgroup<br>
> (rw,nosuid,nodev,noexec,relatime,net_cls,net_prio)<br>
> cgroup on /sys/fs/cgroup/devices type cgroup<br>
> (rw,nosuid,nodev,noexec,relatime,devices)<br>
> cgroup on /sys/fs/cgroup/perf_event type cgroup<br>
> (rw,nosuid,nodev,noexec,relatime,perf_event)<br>
> systemd-1 on /proc/sys/fs/binfmt_misc type autofs<br>
> (rw,relatime,fd=22,pgrp=1,timeout=0,minproto=5,maxproto=5,direct)<br>
> mqueue on /dev/mqueue type mqueue (rw,relatime)<br>
> debugfs on /sys/kernel/debug type debugfs (rw,relatime)<br>
> hugetlbfs on /dev/hugepages type hugetlbfs (rw,relatime)<br>
> /dev/sda5 on /home type ext4 (rw,relatime,data=ordered)<br>
> /dev/sda1 on /boot/efi type vfat<br>
> (rw,relatime,fmask=0077,dmask=0077,codepage=437,iocharset=utf8,shortname=mixed,errors=remount-ro)<br>
> rpc_pipefs on /run/rpc_pipefs type rpc_pipefs (rw,relatime)<br>
> tmpfs on /run/user/117 type tmpfs<br>
> (rw,nosuid,nodev,relatime,size=6595852k,mode=700,uid=117,gid=124)<br>
> tmpfs on /run/user/1000 type tmpfs<br>
> (rw,nosuid,nodev,relatime,size=6595852k,mode=700,uid=1000,gid=1000)<br>
> fusectl on /sys/fs/fuse/connections type fusectl (rw,relatime)<br>
> gvfsd-fuse on /run/user/1000/gvfs type fuse.gvfsd-fuse<br>
> (rw,nosuid,nodev,relatime,user_id=1000,group_id=1000)<br>
><br>
><br>
> # lsblk -f<br>
> NAME FSTYPE LABEL UUID<br>
> MOUNTPOINT<br>
> sda<br>
> ├─sda1 vfat 8642-E734<br>
> /boot/efi<br>
> ├─sda2<br>
> ├─sda3 ext4 a3fbea19-5b7d-47af-b06c-08c49171211b<br>
> /<br>
> ├─sda4 swap 354a6e33-5743-4c97-bfb9-fd6f9d4521e6<br>
> [SWAP]<br>
> └─sda5 ext4 b36dbfc6-6897-4311-aa87-9a958ccad072<br>
> /home<br>
> sdb<br>
> └─sdb1 linux_raid_member debianbase:0 79baaa2f-0aa2-b9fa-18e2-ea6b6e2846b3<br>
> └─md0<br>
> sdc<br>
> └─sdc1 linux_raid_member debianbase:0 79baaa2f-0aa2-b9fa-18e2-ea6b6e2846b3<br>
> └─md0<br>
> sdd<br>
> ├─sdd1 ext2 a0ce336b-35cd-4413-a1c7-e77a1a4e91a6<br>
> ├─sdd4<br>
> ├─sdd5 ext4 bbe77e50-0eaa-4048-934e-9f1b72b157ff<br>
> ├─sdd6 ext4 533f504b-30a6-4cf6-86e9-56772c87bae3<br>
> ├─sdd7 ext4 ff6bcbe9-f25f-4738-ba6b-5ea3c2fe0b70<br>
> ├─sdd8 ext4 2d0d1953-dae6-4e33-8d04-cc685e2e36fb<br>
> ├─sdd9 ext4 df754d9a-3dcf-470f-8e26-d38ef6f82df0<br>
> └─sdd10 swap 04daef55-ff1b-4fe5-a897-ebe397a145b6<br>
> [SWAP]<br>
> sde<br>
> └─sde1 linux_raid_member debianbase:0 79baaa2f-0aa2-b9fa-18e2-ea6b6e2846b3<br>
> └─md0<br>
> sdf<br>
> └─sdf1 linux_raid_member debianbase:0 79baaa2f-0aa2-b9fa-18e2-ea6b6e2846b3<br>
> └─md0<br>
> sr0<br>
><br>
> The last two return the same result as #mount.<br>
><br>
><br>
><br>
> ><br>
> > ><br>
> > > the command I used to use for mounting in Debian 7 no longer works<br>
> > ><br>
> > > so - - - - any suggestions?<br>
> ><br>
> > Which command?<br>
> ><br>
><br>
> mount /dev/dm-0 /home/myhome/RAID<br>
><br>
> I have been using the suspend command on my LXDE manager - - - wondering<br>
> if that might have something to do with the problem.<br>
><br>
> So the array (raid10) is there but it is not getting mounted. The mdadm man<br>
> page isn't<br>
> very useful for this issue being so terse to be almost useless. There is<br>
> really only<br>
> information for the establishment and repair but none for remount or any<br>
> mounting<br>
> issues!<br>
<br>
</div></div>What entry do you have for your raid stuff in /etc/fstab?<br></blockquote><div><br># /etc/fstab: static file system information.<br>#<br># Use 'blkid' to print the universally unique identifier for a<br># device; this may be used with UUID= as a more robust way to name devices<br># that works even if disks are added and removed. See fstab(5).<br>#<br># <file system> <mount point> <type> <options> <dump> <pass><br># / was on /dev/sda3 during installation<br>UUID=a3fbea19-5b7d-47af-b06c-08c49171211b / ext4 errors=remount-ro 0 1<br># /boot/efi was on /dev/sda1 during installation<br>UUID=8642-E734 /boot/efi vfat umask=0077 0 1<br># /home was on /dev/sda5 during installation<br>UUID=b36dbfc6-6897-4311-aa87-9a958ccad072 /home ext4 defaults 0 2<br># swap was on /dev/sda4 during installation<br>UUID=354a6e33-5743-4c97-bfb9-fd6f9d4521e6 none swap sw 0 0<br># swap was on /dev/sdd10 during installation<br>UUID=04daef55-ff1b-4fe5-a897-ebe397a145b6 none swap sw 0 0<br>/dev/sr0 /media/cdrom0 udf,iso9660 user,noauto 0 0<br><br><br></div><div>nothing listed for md0 or md/0 <br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<br>
And as already said, software raid does NOT use /dev/dm devices, it uses<br>
/dev/md devices. dm is for device mapper, which you will see if you use<br>
dmraid (which I think most people have fortunately stopped doing), or lvm<br>
(which many people are using) or encrypted disks (which some people use).<br>
<br>
What does fdisk -l /dev/md0 show? Did you partition the raid or is the<br>
filesystem on the full raid?<br></blockquote><div> <br><br># fdisk -l /dev/md0<br>Disk /dev/md0: 1.8 TiB, 2000403038208 bytes, 3907037184 sectors<br>Units: sectors of 1 * 512 = 512 bytes<br>Sector size (logical/physical): 512 bytes / 4096 bytes<br>I/O size (minimum/optimal): 524288 bytes / 1048576 bytes<br>Disklabel type: gpt<br>Disk identifier: 1EB47793-0CDF-4E16-AE84-33EC825AC448<br><br><br></div><div>the filesystem (if I understand you correctly, the operating system) is on its own hard drive<br><br></div><div>what is interesting is that this <br></div><div><br># lsblk -f<br>NAME FSTYPE LABEL UUID MOUNTPOINT<br>sda <br>├─sda1 vfat 8642-E734 /boot/efi<br>├─sda2 <br>├─sda3 ext4 a3fbea19-5b7d-47af-b06c-08c49171211b /<br>├─sda4 swap 354a6e33-5743-4c97-bfb9-fd6f9d4521e6 [SWAP]<br>└─sda5 ext4 b36dbfc6-6897-4311-aa87-9a958ccad072 /home<br>sdb <br>└─sdb1 linux_raid_member debianbase:0 79baaa2f-0aa2-b9fa-18e2-ea6b6e2846b3 <br> └─md0 <br>sdc <br>└─sdc1 linux_raid_member debianbase:0 79baaa2f-0aa2-b9fa-18e2-ea6b6e2846b3 <br> └─md0 <br>sdd <br>├─sdd1 ext2 a0ce336b-35cd-4413-a1c7-e77a1a4e91a6 <br>├─sdd4 <br>├─sdd5 ext4 bbe77e50-0eaa-4048-934e-9f1b72b157ff <br>├─sdd6 ext4 533f504b-30a6-4cf6-86e9-56772c87bae3 <br>├─sdd7 ext4 ff6bcbe9-f25f-4738-ba6b-5ea3c2fe0b70 <br>├─sdd8 ext4 2d0d1953-dae6-4e33-8d04-cc685e2e36fb <br>├─sdd9 ext4 df754d9a-3dcf-470f-8e26-d38ef6f82df0 <br>└─sdd10 swap 04daef55-ff1b-4fe5-a897-ebe397a145b6 [SWAP]<br>sde <br>└─sde1 linux_raid_member debianbase:0 79baaa2f-0aa2-b9fa-18e2-ea6b6e2846b3 <br> └─md0 <br>sdf <br>└─sdf1 linux_raid_member debianbase:0 79baaa2f-0aa2-b9fa-18e2-ea6b6e2846b3 <br> └─md0 <br>sr0 <br><br><br></div><div>gives a different disc label to md0<br><br><br># mdadm --examine --scan<br>ARRAY /dev/md/0 metadata=1.2 UUID=79baaa2f:0aa2b9fa:18e2ea6b:6e2846b3 name=debianbase:0<br><br><br></div><div>gives the same as lsblk -f<br><br><br># blkid<br>/dev/sda1: UUID="8642-E734" TYPE="vfat" PARTUUID="50750607-76d9-49ea-9319-25b4dc3325f2"<br>/dev/sda2: PARTLABEL="/boot" PARTUUID="784e5c57-6df4-4942-9eef-99c2c707c6e2" <br>/dev/sda3: UUID="a3fbea19-5b7d-47af-b06c-08c49171211b" TYPE="ext4" PARTLABEL="/" PARTUUID="0c2154c4-ccf8-44a8-a80a-8b27d9dd1da8" <br>/dev/sda4: UUID="354a6e33-5743-4c97-bfb9-fd6f9d4521e6" TYPE="swap" PARTLABEL="swap" PARTUUID="58495d3d-e71a-4412-bc8d-99710c326e5c" <br>/dev/sda5: UUID="b36dbfc6-6897-4311-aa87-9a958ccad072" TYPE="ext4" PARTUUID="b321042f-127c-4a29-b3a4-89ac3291093f" <br>/dev/sdb1: UUID="79baaa2f-0aa2-b9fa-18e2-ea6b6e2846b3" UUID_SUB="a80c76db-eaea-61af-bcb9-cbbbac99e467" LABEL="debianbase:0" TYPE="linux_raid_member" PARTUUID="000e4ced-01" <br>/dev/md0: PTUUID="1eb47793-0cdf-4e16-ae84-33ec825ac448" PTTYPE="gpt" <br>/dev/sdc1: UUID="79baaa2f-0aa2-b9fa-18e2-ea6b6e2846b3" UUID_SUB="840fc99d-6f60-7ea8-9a4a-9b0aa965c85c" LABEL="debianbase:0" TYPE="linux_raid_member" PARTLABEL="Linux filesystem" PARTUUID="a79c809a-0333-41d7-918a-e340febddcf4" <br>/dev/sdd1: UUID="a0ce336b-35cd-4413-a1c7-e77a1a4e91a6" TYPE="ext2" PARTUUID="000c9868-01" <br>/dev/sdd5: UUID="bbe77e50-0eaa-4048-934e-9f1b72b157ff" TYPE="ext4" PARTUUID="000c9868-05" <br>/dev/sdd6: UUID="533f504b-30a6-4cf6-86e9-56772c87bae3" TYPE="ext4" PARTUUID="000c9868-06" <br>/dev/sdd7: UUID="ff6bcbe9-f25f-4738-ba6b-5ea3c2fe0b70" TYPE="ext4" PARTUUID="000c9868-07" <br>/dev/sdd8: UUID="2d0d1953-dae6-4e33-8d04-cc685e2e36fb" TYPE="ext4" PARTUUID="000c9868-08" <br>/dev/sdd9: UUID="df754d9a-3dcf-470f-8e26-d38ef6f82df0" TYPE="ext4" PARTUUID="000c9868-09" <br>/dev/sdd10: UUID="04daef55-ff1b-4fe5-a897-ebe397a145b6" TYPE="swap" PARTUUID="000c9868-0a"<br>/dev/sde1: UUID="79baaa2f-0aa2-b9fa-18e2-ea6b6e2846b3" UUID_SUB="cb37e722-d3a9-8f88-1343-9de2bdad9d2b" LABEL="debianbase:0" TYPE="linux_raid_member" PARTUUID="000dc7e1-01"<br>/dev/sdf1: UUID="79baaa2f-0aa2-b9fa-18e2-ea6b6e2846b3" UUID_SUB="9e749fa9-a0ef-e791-ea09-d2e272b99f6c" LABEL="debianbase:0" TYPE="linux_raid_member" PARTUUID="0002d71f-01"<br><br><br></div><div>yet this command not only gives a different logical name but also calls it PTUUID - - - not UUID<br><br><br></div><div>With all of this I am quite confused and really not sure what to do to get my array back.<br></div><div>I have not been able to find anything that remotely resembles this problem, nor have I <br></div><div>found anything that seems like it might be a solution.<br><br><br></div><div>There seems to be some hints that this might be a problem between mdadm and systemd and my file manager on LXDE (PCManFM).<br><br></div><div>Thanking all for their hints and tips!!<br><br></div><div>Dee<br></div></div></div></div>