Cannot delete a .sparsebundle on / with permissions drwxr-xr-x@ 6 root wheel

Even running commands as sudo I cannot change the permissions or delete the folder.

sh-3.2# xattr -l filename.sparsebundle/
com.apple.FinderInfo:
00000000  00 00 00 00 00 00 00 00 20 00 00 00 00 00 00 00  |........ .......|
00000010  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  |................|

OS version

sh-3.2# sw_vers -productVersion
10.15.1

Adding requested information.

sh-3.2# ls -al
total 11
drwxr-xr-x   24 root  admin   768 Oct 31 00:49 .
drwxr-xr-x   24 root  admin   768 Oct 31 00:49 ..
-rw-rw-r--    1 root  admin     0 Aug 25 00:20 .DS_Store
lrwxr-xr-x    1 root  admin    36 Oct  8 13:23 .VolumeIcon.icns -> System/Volumes/Data/.VolumeIcon.icns
----------    1 root  admin     0 Aug 25 00:20 .file
drwx------  124 root  admin  3968 Oct 31 00:55 .fseventsd
drwxr-xr-x    2 root  wheel    64 Aug 25 00:20 .vol
drwxrwxr-x+  80 root  admin  2560 Dec 12 19:27 Applications
drwxr-xr-x   70 root  wheel  2240 Oct 31 00:51 Library
drwxrwxrwt    3 root  wheel    96 Dec 15  2018 Secomba
drwxr-xr-x@   8 root  wheel   256 Sep 29 22:23 System
drwxr-xr-x    5 root  admin   160 Sep 29 22:22 Users
drwxr-xr-x    5 root  wheel   160 Dec 12 22:04 Volumes
drwxr-xr-x@   6 root  wheel   192 Oct  8 08:27 filename.sparsebundle
drwxr-xr-x@  38 root  wheel  1216 Oct 31 00:49 bin
drwxr-xr-x    2 root  wheel    64 Aug 25 00:24 cores
dr-xr-xr-x    3 root  wheel  5579 Dec 12 21:39 dev
lrwxr-xr-x@   1 root  admin    11 Oct  8 13:18 etc -> private/etc
lrwxr-xr-x    1 root  wheel    25 Dec 12 21:39 home -> /System/Volumes/Data/home
drwxr-xr-x    3 root  wheel    96 Oct  8 13:27 opt
drwxr-xr-x    6 root  wheel   192 Oct 31 00:49 private
drwxr-xr-x@  64 root  wheel  2048 Oct 31 00:49 sbin
lrwxr-xr-x@   1 root  admin    11 Oct  8 13:23 tmp -> private/tmp
drwxr-xr-x@  11 root  wheel   352 Oct  8 13:23 usr
lrwxr-xr-x@   1 root  admin    11 Oct  8 13:23 var -> private/var

Error when attempting to delete

sh-3.2# rm -rf filename.sparsebundle/
rm: filename.sparsebundle//token: Read-only file system
....

Checking extended attributes

sh-3.2# ls -laOe filename.sparsebundle
total 256
drwxr-xr-x@  6 root  wheel  -         192 Oct  8 08:27 .
drwxr-xr-x  24 root  admin  sunlnk    768 Oct 31 00:49 ..
-rw-r--r--   1 root  wheel  -         499 Oct  8 08:27 Info.bckup
-rw-r--r--   1 root  wheel  -         499 Oct  8 08:27 Info.plist
drwxr-xr-x  85 root  wheel  -        2720 Oct  8 08:27 bands
-rw-r--r--   1 root  wheel  -      122368 Oct  8 08:27 token

sh-3.2# rm -rf filename.sparsebundle/
rm: filename.sparsebundle//token: Read-only file system

The sparsebundle probably resides on the read-only mounted system volume of a Catalina boot volume.

1. Boot to Recovery Mode.
2. (Unlock/mount your main Catalina boot volume with Disk Utility if it is encrypted)
3. Open Terminal in the menubar (Utilities > Terminal)
4. cd to the root of the main system volume (e.g. cd /Volumes/Macintosh\ HD/)

5. List the content with ls -la to check whether filename.sparsebundle resides there.

   

6. Remove the sparsebundle with rm -dR filename.sparsebundle.
7. Reboot to your main volume.