[ubuntu-za] Problems with fstab

Bill Cairns cairnsww at gmail.com
Mon Jun 15 10:52:57 UTC 2020


Thanks too Khayalethu,

The only differences, that I can see, are in the flags set. I have
'noatime' on my ssd (which I have seen recommended in a number of places)
and then I have 'nodev,nosuid,relatime' on my /home - I copied that from
the ubuntu guide. So the problem must be deeper!

Regards,
  Bill



On Mon, 15 Jun 2020 at 12:51, Bill Cairns <cairnsww at gmail.com> wrote:

> Hi Bruce,
>
> I got 'command udo not found' until I copied it right!
>
> Here you are:
> /dev/sdb2: UUID="2e740efb-b15b-4bea-9ef8-a20dd7a87186" TYPE="ext4"
> PARTUUID="2d6e92df-4f61-489d-b490-b7494b2dac37"
> /dev/sda1: UUID="ea22080c-4fda-44a2-9823-b51cef829ada" TYPE="ext4"
> PARTUUID="00023991-01"
> /dev/sda6: UUID="b7092661-c008-4beb-9cdc-06c3dd036181" TYPE="ext4"
> PARTUUID="00023991-06"
> /dev/sdb1: UUID="B9BC-946C" TYPE="vfat" PARTLABEL="EFI System Partition"
> PARTUUID="26461b51-7dde-415d-bc0b-f8c93d1606a7"
> /dev/sdc1: LABEL="Transcend" UUID="60CC093DCC090F4A" TYPE="ntfs"
> PARTUUID="f2d4863e-01"
>
> Regards,
>   Bill
>
>
>
>
>
> On Mon, 15 Jun 2020 at 11:06, Bruce Pieterse <dev at santura.co.za> wrote:
>
>> Hi Bill,
>>
>> Please can you provide the output of *sudo blkid | grep
>> "ext\|vfat\|ntfs" * to get a better understanding of your disks and
>> partitions.
>>
>> Thanks
>>
>> On Mon, 2020-06-15 at 09:42 +0200, Bill Cairns wrote:
>>
>> Hi Wesley,
>>
>> Thanks for your reply.
>>
>> I hope that I am talking sense here. (I am sometimes not sure that I am
>> using the right terminology.) Going back in time, I started with only the
>> hard disk which is now sda. I had boot, the OS, and everything else on it.
>> Then after a couple of years I added the ssd - now sba. Now I have
>> installed the OS on the ssd, but I still boot from my hard drive. (That is,
>> when I did the install, I specified '/' as being on sb2.) It seems to work
>> very well except for this problem of not being able to use fstab to specify
>> where /home is.
>>
>> At the moment, I am manually mounting /home after startup. Again, it all
>> works well except that I have two /home directories - one on the ssd and
>> the one that I use.
>>
>> Bill
>>
>> On Mon, 15 Jun 2020 at 02:17, Wesley Werner <wesley.werner at gmail.com>
>> wrote:
>>
>> Hi Bill
>>
>> You said the boot drive is sda1, but your SSD disk lists as sdb2
>> (UUID=2e740efb). Perhaps the BIOS is booting the wrong drive?
>>
>> --
>> Regards
>> Wesley Werner
>>
>>
>> On Mon, Jun 15, 2020 at 1:03 AM Bill Cairns <cairnsww at gmail.com> wrote:
>>
>> I tried looking at the drive before mounting it as /home and this is what
>> it looks like with mount -v (I asked nautilus to mount the '960 Gb drive')
>> /dev/sda6 on /media/bill/b7092661-c008-4beb-9cdc-06c3dd036181 type ext4
>> (rw,nosuid,nodev,relatime,uhelper=udisks2)
>>
>> I can access it quite happily that way too.
>>
>> On Sun, 14 Jun 2020 at 16:19, Bill Cairns <cairnsww at gmail.com> wrote:
>>
>> Thanks for your reply Paolo. I confess that I am not quite sure what I
>> should be looking for. The mount -v gives me:
>> /dev/sda6 on /home type ext4 (rw,relatime)
>> While /proc/mounts has
>> /dev/sda6 /home ext4 rw,relatime 0 0
>>
>> That would seem the same, but I am not sure I am looking at the right
>> things.
>>
>> This is the ssd with the OS from mount -v:
>> /dev/sdb2 on / type ext4 (rw,noatime,errors=remount-ro)
>> and from /proc/mounts:
>> /dev/sdb2 / ext4 rw,noatime,errors=remount-ro 0 0
>>
>>
>> On Sat, 13 Jun 2020 at 22:34, Paolo Gigante <paolo.gigante.sa at gmail.com>
>> wrote:
>>
>> Not that it should cause a crash but are you sure its an ext4 filesystem
>> on that device?
>> If the mount command works, you may want to try 'mount -v' to see what
>> mount is actually doing. Once you have used the mount command to attach the
>> FS, does the entry look like in /proc/mounts
>>
>> On Sat, Jun 13, 2020 at 2:38 PM Bill Cairns <cairnsww at gmail.com> wrote:
>>
>> Boot is on the hard drive - sda1
>>
>>
>> On Sat, 13 Jun 2020 at 15:30, Frans de waal <meesterarend at gmail.com>
>> wrote:
>>
>> Just a thought... What is the boot drive in the bios?
>>
>> On Sat, 13 Jun 2020 at 15:10, Bill Cairns <cairnsww at gmail.com> wrote:
>>
>> Hello everybody,
>>
>> I am trying to run 20.04 with my OS on an SSD device and my home
>> directory on my old hard drive.
>>
>> This mount command works perfectly:
>> sudo mount UUID=b7092661-c008-4beb-9cdc-06c3dd036181 /home
>>
>> However, when I try to do the same thing in fstab -
>> # /etc/fstab: static file system information.
>> #
>> # Use 'blkid' to print the universally unique identifier for a
>> # device; this may be used with UUID= as a more robust way to name devices
>> # that works even if disks are added and removed. See fstab(5).
>> #
>> # <file system> <mount point>   <type>  <options>       <dump>  <pass>
>> # / was on /dev/sdb2 during installation
>> UUID=2e740efb-b15b-4bea-9ef8-a20dd7a87186 /         ext4
>>  noatime,errors=remount-ro 0       1
>> # swap was on /dev/sda5 during installation
>> UUID=1c5e43a0-097c-4d68-90df-e544497323dd none            swap    sw
>>          0       0
>> #
>> # Home is on sda6. Added 2020-06-13
>> #
>> UUID=b7092661-c008-4beb-9cdc-06c3dd036181 /home ext4
>> nodev,nosuid,relatime  0  2
>>
>> The system crashes rather badly and says 'You are now in emergency mode'
>> or something equivalent. (And I have no idea how to do anything in
>> emergency mode!)
>>
>> I have used the example in https://help.ubuntu.com/community/Fstab
>> (changing the UUID of course).
>>
>> I am sure that I am missing something very simple. Can anyone help please?
>>
>> Thanks, keep safe,
>>
>> Bill
>>
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