#1 2018-03-31 14:44:12

dr1nkus

Member

Registered: 2017-05-09

Posts: 26

[SOLVED] Long boot time after resizing root partition

Hello all, this is the scenario:

I have an HDD with BunsenLabs Hydrogen and Windows 7 running. When I wrote BL into the disk, I was short in my /root partition (10GB), so I extended it to 16GB in a live session.
Everything works OK, but! there is a message every time I boot, which starts like this:

[47.121457] ACPI Error: Evaluating _BCM failed (20160831/video-354)

Then it gives me a message which goes "A start job is running for dev-disk-by\...", and it lasts 1m30s.  (It's a bit of an annoyance, since BL used to boot in ~10s.)

Here are my guesses:
1) ACPI Error doesn't have anything to do with the following error, but I still posted that line because it's displayed just before  the actual problem, and might be helpful information.
2) The start job tries to find the former partition's UUID (which was 10GB) for a minute and a half, and then it gives up and boots normally.

I cannot find the correct log to post here, since dmesg doesn't show the information I see when I power on my lappy.

What info should I provide in order to let you help me? Needless to say I'm rather noobish.

Thanks in advance!

Last edited by dr1nkus (2018-03-31 18:14:36)

nobody

The Great

Registered: 2015-08-10

Posts: 3,655

Re: [SOLVED] Long boot time after resizing root partition

List the UUIDs of the new partition layout:

$ lsblk --fs
# Example output
NAME                 FSTYPE      LABEL UUID                                   MOUNTPOINT
sda                                                                           
├─sda1               vfat              1671-4B03                              /boot/efi
├─sda2               ext4              d065c185-5c4d-4ef9-b349-0748fda28088   /boot
├─sda3               crypto_LUKS       7bd8b0bc-46c7-4791-bf85-c96fb769f9d6   
│ └─lvm              LVM2_member       jjGUzD-9OJt-TtfI-KiAm-fX1g-XSdO-FCaOMB 
│   ├─wismut-root    ext4              e23fcdb1-25e6-474b-91b5-19a61354ebb6   /
│   ├─wismut-home    ext4              0fc0ed21-a225-47ce-a83b-ec708118dc79   /home
│   ├─wismut-library xfs               960d0a86-f71f-4149-9310-b22ae537ed89   /home/joj/lib
│   └─wismut-swap    swap              92ab40b9-dd9b-435f-bbf1-189756441061   [SWAP]                                                              
├─sda4               ext4              7e3b8703-d3e5-4165-9e7a-80bc819ade2e                                                                       
└─sda5                                                                                                                                            
mmcblk0                                                                       
└─mmcblk0p1          vfat              63E8-13ED

Keep the list open and open /etc/fstab in an editor as root. Ensure that any lines starting with UUID= have the correct UUIDs (especially for the partition you changed). Save and reboot (don't if there isn't any discrepancy).

dr1nkus

Member

Registered: 2017-05-09

Posts: 26

Re: [SOLVED] Long boot time after resizing root partition

Actually, the conflict occurred with the swap partition.
Also, is sda# relevant? Because that does not coincide either.

[EDIT] This is what I mean by 'no coincidence':

dr1nkus@BOX:~$ lsblk --fs
NAME   FSTYPE LABEL                     UUID                                 MOUNTPOINT
sda                                                                          
├─sda1 ntfs   Reservado para el sistema 12DEE6C5DEE69FE9                     
├─sda2 ntfs                             821E5D5D1E5D4B75                     
├─sda3                                                                       
├─sda5 ext4                             ad0effa4-2363-42bf-ad34-b3a88bc85de1 /
├─sda6 ext4                             da82d784-1d8a-4a99-8abf-2960a78dd4ad /home
└─sda7 swap                             4a39feff-b65a-4bbd-b16d-e9b556bad26f 

# /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/sda5 during installation
UUID=ad0effa4-2363-42bf-ad34-b3a88bc85de1 /               ext4    errors=remount-ro 0       1
# /home was on /dev/sda7 during installation
UUID=da82d784-1d8a-4a99-8abf-2960a78dd4ad /home           ext4    defaults        0       2
# swap was on /dev/sda6 during installation
UUID=2fdea8e7-2b99-4548-95d1-9c12b07f6fdf none            swap    sw              0       0
/dev/sr0        /media/cdrom0   udf,iso9660 user,noauto     0       0

Last edited by dr1nkus (2018-03-31 15:49:49)

nobody

The Great

Registered: 2015-08-10

Posts: 3,655

Re: [SOLVED] Long boot time after resizing root partition

Then just fixing the SWAP partition's UUID in fstab should be enough.

dr1nkus

Member

Registered: 2017-05-09

Posts: 26

Re: [SOLVED] Long boot time after resizing root partition

Thank you, @nobody, that did it. I'll add this trick to my experience log ^^

EDIT: grammar

Last edited by dr1nkus (2018-03-31 18:22:36)