[ubuntu-za] Problems with fstab
Bruce Pieterse
dev at santura.co.za
Mon Jun 15 09:05:10 UTC 2020
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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