Loads of text on boot just before apple logo on boot

[MAZZYMAC]

Hello all new to the fourm im looking to know why my m1 base model running 15.1.1 shows loads off lines off text prior to booting at start up it shows the apple logo then loads off text in lines shows really fast prior to then going to apple logo with the bar and then boots ,it only seconds but very confused to why it dose this ? any ideas Macs running fine just all off a sudden started doing this

 

[PaulD-UK]

Looks like you are booting with 'Verbose Mode' turned on.

Disclaimer I have no expertise with this.

EDIT:
Verbose Mode, to see details of startup process.

A Recovery Log is available from the Window menu in Recovery Mode. Normal Unified log records of the boot process start with the initialisation of kprintf by the kernel. Normal verbose mode has been achieved by adding a boot argument of -v in the NVRAM:

sudo nvram boot-args=”-v”

However, this no longer appears to work in macOS 11.2 and later.
You should also be very careful when working with NVRAM settings on an M1 Mac:
any errors or problems may require a complete system reinstall, apparently.

Here's a quote:
"So the (Terminal) command

sudo nvram boot-args="-v"

just creates a variable called boot-args with the value -v, stored in NVRAM.
When your computer boots, it reads this variable (if it exists) and enables verbose mode if it contains the -vflag.

To disable it you can just delete the boot-args variable
using

sudo nvram -d boot-args

Step 2. Select the Return key option after typing it.
If prompted, you need to type in the administrator password.

Also: https://www.easeus.com/knowledge-center/verbose-mode-mac.html

 

[mr_roboto]

Verbose mode can't just turn itself on. Did you install or otherwise do anything that required you to enter an administrator password recently?

 

[MAZZYMAC]

as in the Mac password? I would use to install things yes its set to ask for password im not a tech person with Mac stuff so wouldn't try anything like that just use machine for web surfing you tube and some music stuff . was just I bit odd after updating to Mac OS 15 .thank you for all your replays also I thought it was some kinda virus or malware....

EDIT: I did have some issues with my Mac running slow and crashing so contacted apple and done some bits with them could that be the issue...my problam

turned out I was crashing due to hdd filling up from iCloud Drive syncing was bigger then my drive space so was filling up loads

 

[MAZZYMAC]

Looks like you are booting with 'Verbose Mode' turned on.

Disclaimer I have no expertise with this.

EDIT:
Verbose Mode, to see details of startup process.

A Recovery Log is available from the Window menu in Recovery Mode. Normal Unified log records of the boot process start with the initialisation of kprintf by the kernel. Normal verbose mode has been achieved by adding a boot argument of -v in the NVRAM:

sudo nvram boot-args=”-v”

However, this no longer appears to work in macOS 11.2 and later.
You should also be very careful when working with NVRAM settings on an M1 Mac:
any errors or problems may require a complete system reinstall, apparently.

Here's a quote:
"So the (Terminal) command

sudo nvram boot-args="-v"

just creates a variable called boot-args with the value -v, stored in NVRAM.
When your computer boots, it reads this variable (if it exists) and enables verbose mode if it contains the -vflag.

To disable it you can just delete the boot-args variable
using

sudo nvram -d boot-args

Step 2. Select the Return key option after typing it.
If prompted, you need to type in the administrator password.

Also: https://www.easeus.com/knowledge-center/verbose-mode-mac.html

Thanks for the info its now gone following the links in the post much appitchated