[Discuss] Discuss Digest, Vol 101, Issue 2

Fri Jul 15 21:52:28 PDT 2022

Is it possible that the drive is [nearly] full?

Ray

On Sat, Jul 16, 2022 at 4:22 AM Chaos_Fields <Chaos_Fields at protonmail.com>
wrote:

>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Thu, 14 Jul 2022 14:40:34 -0700
> From: BCLUG <info at bclug.ca>
> To: discuss at vlug.org
> Subject: Re: [Discuss] Discuss Digest, Vol 100, Issue 4
> Message-ID: <3b5a35cd-39b4-1c57-b6f4-93796cb2a28a at bclug.ca>
> Content-Type: text/plain; charset=UTF-8; format=flowed
>
>
> (Resending this message - replied from non-subscribed email address, oops)
>
>
> Chaos_Fields wrote on 2022-07-13 22:47:
>
> > I was hoping somebody could please help me somehow. I was using my
> > laptop running a Debian based operating system with full disk encryption
> > and I started noticing recently?that sometimes I would start getting a
> > nonsensical?box pop up on screen saying that my hard disk is a ?read
> > only? file system and cannot complete some kind of?operation or
> > another.
>
> Does this happen after the system has gone into sleep mode?
>
> If so, I wonder if it's not unlocking the file system when it awakens?
>
>
> RE:  Possibly, but the error warning isn’t popping up immediately after
> logging back in after being away from the desk for a while. It seems it
> only coincides with when I’m writing some change to the disk or when
> shutting down or restarting.
>
> >?Then I would start having issues with not being
> > able?download?files from the internet or change anything on the hard
> > drive?but it would go back to being normal and?fine only?after reboot.
>
> That does sound like the FS needs unlocking again.
>
>
> What encryption method? LUKS, cryfs, ...?
>
> RE: LUKS
>
> > I
> > couldn?t find working solutions online.?So this most recent time this
> > happened and?I rebooted and entered my passphrase in grub then
> > it?proceeded towards?the?login screen but?the?system?would?drop to a
> > black busybox screen just before loading?login screen. It seems to be
> > failing to mount the system. I?m not dual-booting with anything though.
>
> Ouch.
>
> At this point, I'd try to unlock FS from the command line. I've had to
> do this once or twice ages ago when a cryfs KDE vault went wonky.
>
>
> Not sure how helpful any of this is, but hoping there's something in
> here that leads to a solution.
>
> Keep us posted on your progress, and good luck!
>
>
> RE: For sure, well I just ran into this video which appears to reflect
> just what I’m experiencing thankfully:  https://youtu.be/jcrFJpmLuFw
>
> <https://youtu.be/jcrFJpmLuFw>I’m gonna try this out maybe and see if it
> works.
>
> It’s btrfs file system though
>
> ------------------------------
>
> Message: 2
> Date: Thu, 14 Jul 2022 16:58:30 -0700
> From: Peter Willis <p.willis at telus.net>
> To: discuss at vlug.org
> Subject: Re: [Discuss] Discuss Digest, Vol 100, Issue 4
> Message-ID: <1EE351D4-E1AC-47E9-99E2-A3C3F0572401 at telus.net>
> Content-Type: text/plain; charset=utf-8
>
> Hello,
>
> You should back up your important files to a different disk as soon as
> possible.
>
> Then reinstall your system but only encrypt your important data partitions
> (ie: not your boot)
>
> Guessing here, but it's mounting the file system read only to users
> because the file system is not clean.
>
>
>
> RE: not clean so it’s corrupted?
>
>
> If your boot patition has a journal and, is not cleanly unmounted before
> shutdown, the fils system, check will need to find blocks that are
> accessible to clean up your file system before rebooting with a fixed one.
>
> The journal is used to fix corruption by accounting previous changes made
> to the file system.
>
> See: https://pages.cs.wisc.edu/~remzi/OSTEP/file-journaling.pdf
>
>
> RE: I’ll read that thanks. I just found this too which seems to reflect my
> predicament https://youtu.be/jcrFJpmLuFw
>
> If you have power issues, your disk is borderline, combined with encrypted
> boot files, journalling file system,...etc....
>
>
> RE: The drive is new. The grub screen came up first after restart and let
> me type in my encrypted boot passphrase no problem and passed along to the
> Operating System selection screen before dropping into a “kernel
> panic”. The file system is btrfs on the failing /root  and /proc partition.
> No battery warnings previously and seems to be fine.
>
> fsck will do what it can, until it can't anymore. It's likely fsck needs a
> reboot to complete the remount of fstab or mtab in user mode.
>
>
>
> RE: indeed yup. I’ll try to grab a screen shot in a bit here when I get
> back on.
>
>
>
> Best to put '/home' and any other user data specific data paths in thier
> own partitions and just encrypt the partition.
>
>
> RE: that is what I usually like to do with most computers I use but I
> didn’t have the patience for it this time when I originally installed this
> system since it’s easy to get something wrong and fail the installation I
> have found. I have a lot of experience with things like Gnome disks and
> Gparted, etc etc for other things but not in the process of unmounting a
> partition on the same drive I’m currently using to repartition the whole
> arrangement especially when it’s encrypted and organized into volume
> groups. I’ll for sure back everything up before I do this.
>
> If you have encrypted budget SSD you can do battle with crappy hardware
> leveling and then, one sunny day, sudden failure will lose all of your data
> irrecoverably. Quality mechnical disks are more recoverable.
>
>
> RE: It’s a New SSD but perhaps a cheap one I suppose.
>
>
> Make backups to an external RAID that includes a 'spare' . That RAID
> should be high quality mechnical disks. Alternatively, backup to a cloud
> service if you have a network capable of moving all your changes in a
> single day.
>
> RE: Okay
>
> Make sure you make regular backups if you use SSD. Make doubly sure of
> regular backups if your SSD is economy brand, and your power supply is
> economy brand, and your power utility provider is an economy brand. All
> that 'economy' becomes moot when your files are gone.
> Don't trust 'Smart Drive' disk status. The only 'Smart Drive' is a backed
> up drive.
>
> My opinion.
>
> RE: I remember running the standard backups application previously and it
> failed a couple of times but eventually I backed up my files a while ago.
>
>
> It’s a shame because when this happened my raspberry pi 4 was being
> updated through the recalbox web manager from the computer that is now in
> kernel panic and now the raspberry pi forever hangs in standby waiting to
> receive input and it warns not to turn it off… 🤷🏻‍♂️
>
> P
>
> > On Jul 13, 2022, at 22:47, Chaos_Fields <Chaos_Fields at protonmail.com>
> wrote:
> >
> > Hey folks, I was hoping somebody could please help me somehow. I was
> using my laptop running a Debian based operating system with full disk
> encryption and I started noticing recently that sometimes I would start
> getting a nonsensical box pop up on screen saying that my hard disk is a
> ?read only? file system and cannot complete some kind of operation or
> another. Then I would start having issues with not being able download
> files from the internet or change anything on the hard drive but it would
> go back to being normal and fine only after reboot. I couldn?t find working
> solutions online. So this most recent time this happened and I rebooted and
> entered my passphrase in grub then it proceeded towards the login screen
> but the system would drop to a black busybox screen just before loading
> login screen. It seems to be failing to mount the system. I?m not
> dual-booting with anything though.
> >
> >
> > Sent from Proton Mail
>
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