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Thread: Slow booting of Ubuntu?

  1. #61
    Join Date
    Apr 2019
    Beans
    31

    Re: Slow booting of Ubuntu?

    Quote Originally Posted by oldfred View Post
    Just installed Mate to 64GB flash drive, yesterday.
    Install was very slow as writing to flash drives is very slow.

    First boot of flash drive was 3 min & 55 sec which seems about right.
    But it turns out the systemd-analyze firmware number is from first boot, so on my warm reboots that kept getting much larger.

    But after making the changes I posted in #48 & #50 boot time dropped a lot.
    I had printer on which slowed it a lot. But when I turned printed off, it crashed?

    Not sure if some of improvement was internal optimization as you reboot.
    but udsisk when from 35s to 11s to 5 sec.
    network entry went from 12.5s to 6.8 sec to 4 sec.

    I did add noatime to mount of / and added entry to mount tmpfs in RAM to reduce writes.

    Last test reboot was about 21s to login. and it reported 8.2s to graphical screen which seems about right.
    Firmware was up to 23minutes, but that was 3 reboots and editing.

    Boot time of Mate from slower flash drive now seems pretty quick.

    can you post more details about #48 please.

  2. #62
    Join Date
    Jun 2009
    Location
    SW Forida
    Beans
    Hidden!
    Distro
    Ubuntu

    Re: Slow booting of Ubuntu?

    Details were in #50.
    For more info on UEFI boot install & repair - Regularly Updated :
    http://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to change to [Solved] when/if answered completely.

  3. #63
    Join Date
    Apr 2019
    Beans
    31

    Re: Slow booting of Ubuntu?

    guys, i just ran
    p
    Code:
    arted /dev/sda print
    i got the following output

    Code:
    Model: ATA SAMSUNG HM251HI (scsi)
    Disk /dev/sda: 250GB
    Sector size (logical/physical): 512B/512B
    Partition Table: gpt
    Disk Flags: 
    
    Number  Start   End    Size   File system  Name                  Flags
     1      1049kB  538MB  537MB  fat32        EFI System Partition  boot, esp
     2      538MB   250GB  250GB  ext4
    does that look right to you guys? Anything worth changing?

  4. #64
    Join Date
    Jun 2009
    Location
    SW Forida
    Beans
    Hidden!
    Distro
    Ubuntu

    Re: Slow booting of Ubuntu?

    That is a standard UEFI install.
    A bit more advanced is to separate system from your data or have a separate /home partition.

    And many of us go one step further and use data partition(s). But then you need to understand, mounting, editing fstab, ownership & permissions.
    Having /home as a partition does all that automatically if you set it up during install.

    You can create a new /home partition with step by step instructions which cover the details.
    To move /home uses rsync- Be sure to use parameters to preserve ownership & permissions
    https://help.ubuntu.com/community/Pa...ng/Home/Moving

    I like to keep / at 25 or 30GB but have all data in my data partition so / only actually uses about 7 GB.
    QUOTE
    Excluding all the tmpfs entries, sdc is flash drive:
    Code:
    fred@Bionic-Z170N:~$ df -h
    Filesystem      Size  Used Avail Use% Mounted on
    udev            7.8G     0  7.8G   0% /dev
    /dev/sda4        25G  7.4G   17G  32% /
    /dev/sda1        50G   79M   50G   1% /boot/efi
    /dev/sdb6       298G   64G  220G  23% /mnt/data
    /dev/sdc4        36G   25G  9.5G  72% /media/fred/data
    /dev/sdc3        21G  6.0G   14G  31% /media/fred/mateUSB
    For more info on UEFI boot install & repair - Regularly Updated :
    http://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to change to [Solved] when/if answered completely.

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