How can I get back to root# command line read-write

Question

MacBook Pro 15" Unibody Early 2011

Model A1286. Released February 2011 / 2.0, 2.2, or 2.3 GHz Quad-core Intel Core i7 Processor

crwdns2934591:0586crwdne2934591:0 crwdns2934593:0crwdne2934593:0

Lynn @lkd

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crwdns2931729:0crwdne2931729:0: Dzi 23, 2021

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How can I get back to root# command line read-write

I can only log in to my computer in command S single user mode due to GPU problems. I believe recently my computer updated or reinstalled high sierra 10.13.6 and now when I started up single user mode I am gettin -sh-3.2# instead of the :/root # , how can i go back to root command line? Fsck comes back OK, anything I type @ the -sh-3.2# returns command not found or device read only. Any Thoughts?

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Are you able to boot up in Target Disk Mode?

Restart your system and press the T key. You should see either a FireWire or Thunderbolt icon on your screen do you?

crwdns2934271:0Dzi 23, 2021crwdnd2934271:0 Dan crwdne2934271:0

Yes I see the FireWire /Thunderbolt icon.

crwdns2934271:0Dzi 23, 2021crwdnd2934271:0 Lynn crwdne2934271:0

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Are you able to boot up in Target Disk Mode?

Restart your system and press the T key. You should see either a FireWire or Thunderbolt icon on your screen do you? — Dan