HP Deskjet 2655 setup

After a while, maybe after changed home router (even still use the old passcode), your HP35962B is offline and the Wireless light is blinking. (if not, make it according to this link.)

Then your HP Easy Start could find the Printer!

If you want to link to the Printer’s Wi-Fi Direct, according to the Information page:

name: "DIRECT-2B-HP DeskJet 2600 series"
password: "12345678"

Wait … my request for ink service stuck in a blank dialog for hours after input credit card information. If I try to close it, …

Thus I went another path, “Add a network, wireless, or Bluetooth printer.”

MacOS: to create iso then install in VirtualBox

So this time after being prompt to install Catalina, I followed the wizard until here:

macOS Catalina

Now I go to check file systems and get:

ywu@C02SC0ZQG8WL:/$ ll /Volumes/InstallESD/Packages/
total 15075800
-rw-r--r--  1 root  wheel  7483625825 Mar 18 09:51 Core.pkg
-rw-r--r--  1 root  wheel    55775476 Mar 18 09:51 EmbeddedOSFirmware.pkg
-rw-r--r--  1 root  wheel   178524280 Mar 18 09:51 FirmwareUpdate.pkg
-rw-r--r--  1 root  wheel      798113 Mar 18 09:51 OSInstall.mpkg
-rw-r--r--  1 root  wheel       69882 Mar 18 09:51 SecureBoot.pkg
ywu@C02SC0ZQG8WL:/Volumes$ ls -l /Applications/Install\ macOS\ Catalina.app/
total 0
drwxr-xr-x  11 root  wheel  352 Mar 17 11:30 Contents
ywu@C02SC0ZQG8WL:/Volumes$ ls -l /Applications/Install\ macOS\ Catalina.app/Contents/
total 0
drwxr-xr-x   4 root  wheel   128 Mar 31 17:35 Frameworks
-rw-r--r--   1 root  wheel  2521 Mar 17 08:39 Info.plist
drwxr-xr-x   5 root  wheel   160 Mar 17 11:31 MacOS
-rw-r--r--   1 root  wheel     8 Mar 17 08:39 PkgInfo
drwxr-xr-x   5 root  wheel   160 Mar 17 08:40 PlugIns
drwxr-xr-x  66 root  wheel  2112 Mar 17 11:31 Resources
drwxr-xr-x   8 root  wheel   256 Mar 31 17:35 SharedSupport
drwxr-xr-x   3 root  wheel    96 Mar 17 08:40 _CodeSignature
-rw-r--r--   1 root  wheel   532 Mar 17 08:40 version.plist

Now to reuse the script I did in Mojave and got the ISO file. Need to designate the OSX version as 10.15 although it could detect as 10.15.4.

ywu@C02SC0ZQG8WL:~/Workspace/macOS_Catalina$ ../macOS_Mojave/InstallerApp2ISO.sh -i /Applications/Install\ macOS\ Catalina.app -o ./out/ -t ./tmp/ -x 10.15 -v 3
ywu@C02SC0ZQG8WL:~/Workspace/macOS_Catalina$ ls -l out/
total 16652336
-rw-r--r--  1 ywu  staff  8525996032 Mar 31 19:47 10.15.iso
ywu@C02SC0ZQG8WL:~/Workspace/macOS_Catalina$

Before I confirmed to proceed I noticed the /Volumes/InstallESD folder was gone but a different empty folder was created (“OS X Base System” below). That newly created folder was gone after the ISO file was created. I assume the files under InstallESD were used for preparing the .app. Will continue the upgrade to Catalina and see if there is any impact.

ywu@C02SC0ZQG8WL:/Volumes$ ls -lart
total 0
drwxr-xr-x  31 root  wheel   992 Mar 31 17:16 ..
lrwxr-xr-x   1 root  wheel     1 Mar 31 17:17 Untitled -> /
drwxr-xr-x   4 ywu   staff   204 Mar 31 19:45 OS X Base System
drwxr-xr-x+  5 root  wheel   160 Mar 31 19:45 .

MacOS: To boot from a USB stick in VirtualBox

So far the only workable way is to start VirtualBox as root, otherwise when load the vmdk file you’ll get “VERR_ACCESS_DENIED” error, even after you chown && chmod the vmdk file (there is no “udev” concept here).

$ sudo diskutil unmount /dev/disk2
$ sudo VBoxManage internalcommands createrawvmdk -filename /Users/yan/VirtualBox\ VMs/Sierra/point_to_disk2.vmdk -rawdisk /dev/disk2
$ cd /Applications/VirtualBox.app/Contents/MacOS/
$ sudo ./VirtualBox

After you start VirtualBox as a root, you’ll find the home directory is under /var/root/, thus you need to access the vmdk from the other location. Meanwhile the stick could be remounted thus you’ll get “VERR_RESOURCE_BUSY” error thus to re-unmount the stick. I’ve found I couldn’t “sudo cd /var/root” but I could do “sudo ls -l /var/root” etc. Sometimes MacOS is quirky.

Never tried Single User Mode.

Configuration:

Host: macOS High Sierra on a MacBook Pro (13-inch, Late 2011)
Virtualbox Version 6.0.14 r133895 (Qt5.6.3)
Guest: macO Sierra

Reference:
https://www.virtualbox.org/manual/ch09.html#rawdisk
https://forums.virtualbox.org/viewtopic.php?f=7&t=70984
https://www.linuxquestions.org/questions/linux-virtualization-and-cloud-90/installing-osx-on-virtualbox-from-bootable-usb-4175635932/