更新

更新

我最近用更大的 SSD 更换了 SSD。我用了克隆属将旧磁盘克隆到新磁盘。之后我用了GParted 现场直播要调整现有分区的大小,请将交换分区推到磁盘末尾。我也从 Ubuntu 16.04 更新到 18.04。

成功完成上述步骤后,我注意到启动时间变得更长。我发现了一些类似的线程(下面链接)并尝试了那里的建议。然而,启动时间并没有减少到更换磁盘之前的时间。

这是我的原文/etc/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/sda1 during installation
UUID=e15b2ef7-c32d-46f5-a3a8-4bdc60285b4e /               ext4    errors=remount-ro 0       1
# swap was on /dev/sda5 during installation
UUID=3a0c2581-52f2-4c92-9c4a-09d3f0258c05 none            swap    sw              0       0
/dev/disk/by-id/usb-Generic_USB_Flash_Disk-0:0 /mnt/usb-Generic_USB_Flash_Disk-0:0 auto nosuid,nodev,nofail,x-gvfs-show 0 0

我已经通过查看替换了UUID分区swap黑子命令输出:

/dev/sda1: UUID="e15b2ef7-c32d-46f5-a3a8-4bdc60285b4e" TYPE="ext4" PARTUUID="000d7e8b-01"
/dev/sda5: LABEL="swap" UUID="839f9d78-77b2-491d-808d-8cd551a9eeef" TYPE="swap" PARTUUID="000d7e8b-05"

我还注释掉了 ,/dev/disk/by-id/usb-..因为我相信这是我启动 GParted Live 的 USB 记忆棒。不知道为什么它仍然在那里定义。

# /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/sda1 during installation
UUID=e15b2ef7-c32d-46f5-a3a8-4bdc60285b4e /               ext4    errors=remount-ro 0       1
# swap was on /dev/sda5 during installation
# UUID=3a0c2581-52f2-4c92-9c4a-09d3f0258c05 none            swap    sw              0       0
UUID=839f9d78-77b2-491d-808d-8cd551a9eeef none            swap    sw              0       0
# /dev/disk/by-id/usb-Generic_USB_Flash_Disk-0:0 /mnt/usb-Generic_USB_Flash_Disk-0:0 auto nosuid,nodev,nofail,x-gvfs-show 0 0

显示/var/log/boot.log如下:

         Starting Tell Plymouth To Write Out Runtime Data...
[  OK  ] Started Braille Device Support.
[  OK  ] Listening on Load/Save RF Kill Switch Status /dev/rfkill Watch.
         Starting Load/Save RF Kill Switch Status...
[  OK  ] Started Braille Device Support.
[  OK  ] Started Load/Save RF Kill Switch Status.
[  OK  ] Reached target Sound Card.
[  OK  ] Started Braille Device Support.
[  OK  ] Started Tell Plymouth To Write Out Runtime Data.
[  OK  ] Started Raise network interfaces.
[ TIME ] Timed out waiting for device dev-disk-by\x2did-usb\x2dGeneric_USB_Flash_Disk\x2d0:0.device.
[DEPEND] Dependency failed for /mnt/usb-Generic_USB_Flash_Disk-0:0.
[ TIME ] Timed out waiting for device dev-disk-by\x2duuid-3a0c2581\x2d52f2\x2d4c92\x2d9c4a\x2d09d3f0258c05.device.
[DEPEND] Dependency failed for /dev/disk/by-uuid/3a0c2581-52f2-4c92-9c4a-09d3f0258c05.
[DEPEND] Dependency failed for Swap.
[  OK  ] Reached target System Initialization.
[  OK  ] Listening on UUID daemon activation socket.
[  OK  ] Listening on PC/SC Smart Card Daemon Activation Socket.
[  OK  ] Started Daily apt download activities.
...

系统分析命令告诉:

Startup finished in 36.037s (kernel) + 10.847s (userspace) = 46.885s
graphical.target reached after 10.835s in userspace

我可以采取什么措施来缩短启动时间?

更新

我今天再次查看/var/log/boot.log并发现了这个输出 - 请注意暂停搜索设备时!:

         Starting Tell Plymouth To Write Out Runtime Data...
[  OK  ] Started Braille Device Support.
[  OK  ] Listening on Load/Save RF Kill Switch Status /dev/rfkill Watch.
         Starting Load/Save RF Kill Switch Status...
[  OK  ] Started Braille Device Support.
[  OK  ] Started Load/Save RF Kill Switch Status.
[  OK  ] Reached target Sound Card.
[  OK  ] Started Braille Device Support.
[  OK  ] Started Tell Plymouth To Write Out Runtime Data.
[  OK  ] Started Raise network interfaces.    
[*     ] (1 of 2) A start job is running for dev-disk-by\x2did-usb\x2dGeneric_
[**    ] (1 of 2) A start job is running for dev-disk-by\x2did-usb\x2dGeneric_
[***   ] (1 of 2) A start job is running for dev-disk-by\x2did-usb\x2dGeneric_
[ ***  ] (2 of 2) A start job is running for dev-disk-by\x2duuid-3a0c2581\x2d5
[  *** ] (2 of 2) A start job is running for dev-disk-by\x2duuid-3a0c2581\x2d5
[   ***] (2 of 2) A start job is running for dev-disk-by\x2duuid-3a0c2581\x2d5
[    **] (1 of 2) A start job is running for dev-disk-by\x2did-usb\x2dGeneric_
[     *] (1 of 2) A start job is running for dev-disk-by\x2did-usb\x2dGeneric_
[    **] (1 of 2) A start job is running for dev-disk-by\x2did-usb\x2dGeneric_
[   ***] (2 of 2) A start job is running for dev-disk-by\x2duuid-3a0c2581\x2d5
[  *** ] (2 of 2) A start job is running for dev-disk-by\x2duuid-3a0c2581\x2d5
[ ***  ] (2 of 2) A start job is running for dev-disk-by\x2duuid-3a0c2581\x2d5
[***   ] (1 of 2) A start job is running for dev-disk-by\x2did-usb\x2dGeneric_
[**    ] (1 of 2) A start job is running for dev-disk-by\x2did-usb\x2dGeneric_
[*     ] (1 of 2) A start job is running for dev-disk-by\x2did-usb\x2dGeneric_
[**    ] (2 of 2) A start job is running for dev-disk-by\x2duuid-3a0c2581\x2d5
[***   ] (2 of 2) A start job is running for dev-disk-by\x2duuid-3a0c2581\x2d5
[ ***  ] (2 of 2) A start job is running for dev-disk-by\x2duuid-3a0c2581\x2d5
[  *** ] (1 of 2) A start job is running for dev-disk-by\x2did-usb\x2dGeneric_
...
[ TIME ] Timed out waiting for device dev-disk-by\x2did-usb\x2dGeneric_USB_Flash_Disk\x2d0:0.device.
[DEPEND] Dependency failed for /mnt/usb-Generic_USB_Flash_Disk-0:0.
[ TIME ] Timed out waiting for device dev-disk-by\x2duuid-3a0c2581\x2d52f2\x2d4c92\x2d9c4a\x2d09d3f0258c05.device.
[DEPEND] Dependency failed for /dev/disk/by-uuid/3a0c2581-52f2-4c92-9c4a-09d3f0258c05.
[DEPEND] Dependency failed for Swap.
[  OK  ] Reached target System Initialization.
[  OK  ] Listening on UUID daemon activation socket.
[  OK  ] Listening on PC/SC Smart Card Daemon Activation Socket.
...

有关的

答案1

我怀疑有一个“恢复”文件

/etc/initramfs-tools/conf.d/resume

它指向不再找到的 UUID。您可以修改该文件以指向交换分区的正确 UUID,然后运行

sudo update-initramfs -u

请参阅以下错误报告链接中的注释 #16 和 #17,

https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/1763611


您的情况与错误报告中的情况存在差异,

  • 在你的情况下,你使用的是交换分区
  • 在错误报告的情况下,使用交换文件(因此没有交换分区,应该指出)。

相关内容