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Thread: Laptop cpu suddenly went to 99%, now can boot but not login.

  1. #11
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    Default Re: Laptop cpu suddenly went to 99%, now can boot but not login.

    Thanks, Part 4 & /sda4 are my Lappy's Swap. I assume you actually meant Part 5 & /sda5...?

  2. #12
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    Default Re: Laptop cpu suddenly went to 99%, now can boot but not login.

    As you can see, i did both. I don't know if the output is good or bad. Sorry for the fuzziness; can you manage to read it ok?


  3. #13
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    Default Re: Laptop cpu suddenly went to 99%, now can boot but not login.

    Whats in /etc/fstab??

  4. #14
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    Default Re: Laptop cpu suddenly went to 99%, now can boot but not login.

    Quote Originally Posted by gogalthorp View Post
    Whats in /etc/fstab??
    Code:
    /dev/mapper/cr_ata-SAMSUNG_SSD_PM810_2.5__256GB_S0N4NEAZB01960-part4 swap swap defaults 0 0
    UUID=59c063db-fa0d-4e1e-baa2-df255f4262fb / btrfs noatime 0 0
    UUID=59c063db-fa0d-4e1e-baa2-df255f4262fb /boot/grub2/i386-pc btrfs noatime,subvol=@/boot/grub2/i386-pc 0 0
    UUID=59c063db-fa0d-4e1e-baa2-df255f4262fb /boot/grub2/x86_64-efi btrfs noatime,subvol=@/boot/grub2/x86_64-efi 0 0
    UUID=59c063db-fa0d-4e1e-baa2-df255f4262fb /opt btrfs noatime,subvol=@/opt 0 0
    UUID=59c063db-fa0d-4e1e-baa2-df255f4262fb /srv btrfs noatime,subvol=@/srv 0 0
    UUID=59c063db-fa0d-4e1e-baa2-df255f4262fb /usr/local btrfs noatime,subvol=@/usr/local 0 0
    UUID=59c063db-fa0d-4e1e-baa2-df255f4262fb /var/cache btrfs noatime,subvol=@/var/cache 0 0
    UUID=59c063db-fa0d-4e1e-baa2-df255f4262fb /var/crash btrfs noatime,subvol=@/var/crash 0 0
    UUID=59c063db-fa0d-4e1e-baa2-df255f4262fb /var/lib/libvirt/images btrfs noatime,subvol=@/var/lib/libvirt/images 0 0
    UUID=59c063db-fa0d-4e1e-baa2-df255f4262fb /var/lib/machines btrfs noatime,subvol=@/var/lib/machines 0 0
    UUID=59c063db-fa0d-4e1e-baa2-df255f4262fb /var/lib/mailman btrfs noatime,subvol=@/var/lib/mailman 0 0
    UUID=59c063db-fa0d-4e1e-baa2-df255f4262fb /var/lib/mariadb btrfs noatime,subvol=@/var/lib/mariadb 0 0
    UUID=59c063db-fa0d-4e1e-baa2-df255f4262fb /var/lib/mysql btrfs noatime,subvol=@/var/lib/mysql 0 0
    UUID=59c063db-fa0d-4e1e-baa2-df255f4262fb /var/lib/named btrfs noatime,subvol=@/var/lib/named 0 0
    UUID=59c063db-fa0d-4e1e-baa2-df255f4262fb /var/lib/pgsql btrfs noatime,subvol=@/var/lib/pgsql 0 0
    UUID=59c063db-fa0d-4e1e-baa2-df255f4262fb /var/log btrfs noatime,subvol=@/var/log 0 0
    UUID=59c063db-fa0d-4e1e-baa2-df255f4262fb /var/opt btrfs noatime,subvol=@/var/opt 0 0
    UUID=59c063db-fa0d-4e1e-baa2-df255f4262fb /var/spool btrfs noatime,subvol=@/var/spool 0 0
    UUID=59c063db-fa0d-4e1e-baa2-df255f4262fb /var/tmp btrfs noatime,subvol=@/var/tmp 0 0
    UUID=59c063db-fa0d-4e1e-baa2-df255f4262fb /.snapshots btrfs noatime,subvol=@/.snapshots 0 0
    UUID=411E-AE07       /boot/efi            vfat       noatime,umask=0002,utf8=true 0 0
    /dev/mapper/cr_ata-SAMSUNG_SSD_PM810_2.5__256GB_S0N4NEAZB01960-part5 /home                ext4       discard,noatime,acl,nofail    0 2
    #tmpfs                /tmp                 tmpfs      noatime,size=25%      0 0
    #tmpfs                /tmp                 tmpfs      noatime,size=256m      0 0
    tmpfs                /tmp                 tmpfs      noatime,size=512m      0 0

  5. #15
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    Default Re: Laptop cpu suddenly went to 99%, now can boot but not login.

    Quote Originally Posted by GooeyGirl View Post
    Thanks, Part 4 & /sda4 are my Lappy's Swap. I assume you actually meant Part 5 & /sda5...?
    Right. But it doesn't really matter. I was wondering about an issue that would affect both of those.

    In any case, your output seems to show that this was not the problem. And that leaves me puzzled as to what was the problem.
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  6. #16
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    Default Re: Laptop cpu suddenly went to 99%, now can boot but not login.

    Thanks anyway.

    Given i have the very distinct feeling that most others who have read this thread are / might be as mystified as me about [a] what happened? [b] why? [c] how to repair it? , I have now thrown in the towel & gone semi-nuclear.

    I was prepared & intending today to go full-nuclear, by which i mean a complete new installation with another distro [KDE Neon], given my shock that TW would do this to my Lappy despite openQA, & despite BtrFS+Snapper+Rollbacks. However i had forgotten how poor the Neon Installer is, compared to the wonderful Ruby. It would not allow me to reuse my encrypted home partition [groan, that's not right, is it? Um, my /dev/sda5 encrypted partition on which /home is mounted; is that right?] without formatting it, thus definitely losing everything [i'm still clinging to hope that despite Lappy's TW no longer being able to use this partition atm, that its contents are still actually safe & intact]. So i abandoned that intended Neon installation, & am currently 40' into the following...

    I rebooted Lappy with my old "openSUSE-Tumbleweed-DVD-x86_64-Snapshot20170510-Media.iso" USB stick, with which i had initially migrated both my Tower & Lappy to TW earlier this year. I configured Ruby to reformat each partition [but still in same guise as original], except /dev/sda5 encrypted partition, which i set to reuse as-is. I knew this would cause Ruby to ask me for my existing encryption password, & my hope was that Ruby would still successfully then access that partition... which it did. Hence, the TW reinstallation is now in progress; given how lousy Australian "broadband" speeds are, it will be hours before this finishes.

    Obviously i've now lost all my programs, so i'll need to reinstall them again later, but at least IF this semi-nuclear option succeeds in saving my current /home then under the circumstances i'll regard this as a win. All my data is safe on backups, so that's not the main reason i have been keen to save Lappy's /home if at all possible... it also has some VirtualBox VMs which due to size are not able to be backed up, & i'd much prefer not to lose them.

    Fingers crossed that this works. I'm not putting my Neon USB stick back in the drawer just yet...

  7. #17
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    Default Re: Laptop cpu suddenly went to 99%, now can boot but not login.

    Quote Originally Posted by GooeyGirl View Post
    However i had forgotten how poor the Neon Installer is, compared to the wonderful Ruby. It would not allow me to reuse my encrypted home partition [groan, that's not right, is it?
    Assuming that "Neon Installer" is the same thing as "Ubuntu installer", this should not actually be a problem. Just omit that partition, and add it after install by editing "/etc/fstab" and "/etc/crypttab".

    However, Ubuntu does like "/etc/crypttab" to use UUID to identify the partition.
    opensuse Leap 42.3; KDE Plasma 5;
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  8. #18
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    Default Re: Laptop cpu suddenly went to 99%, now can boot but not login.

    Thanks, i didn't know i could do that.

    It's all finished [a bit faster than i'd expected; only 1:41' today], & guess what? It is still broken, with identical symptoms to my original post. That is... it boots ok, it displays the "Please enter passphrase for disk primary [cr_ata-SAMSUNG_SSD_PM810_2.5__256GB_S0N4NEAZB01960-part5]" ok, it accepts my passphrase without error, it proceeds to the login screen, it accepts my password without error, & then... it proceeds to the login screen, it accepts my password without error, & then... it proceeds to the login screen, it accepts my password without error, & then...

    What a waste of time, energy & bandwidth.

    Now, where's that other USB stick...?

  9. #19
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    Default Re: Laptop cpu suddenly went to 99%, now can boot but not login.

    I think that's a different problem. There is something in your saved user settings that is causing a problem. If you can create a new user account, it will probably work for that user. (Login as root and run "yast" at the command line).
    opensuse Leap 42.3; KDE Plasma 5;
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  10. #20
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    Default Re: Laptop cpu suddenly went to 99%, now can boot but not login.

    But i do have 2 user accounts already, & they both do this.

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