Another seven blacks have been killed and at least six have been seriously injured in South Africa in the past two days, as unrest appears to be settling into an endemic pattern in many of the country's segregated townships and tribal "homelands."

There have been no major outbursts of violence for more than a week, the longest lull in several months, but sporadic rioting and clashes with the police continue in dozens of black areas around the country.

Meanwhile, in a development running counter to the white minority government's declared intention to step up the pace of racial change, a commission appointed by President Pieter W. Botha announced proposals for redrawing the boundaries of the KwaZulu "homeland" that require the forced removal of about 42,000 people, nearly all of them black.

Both white and black leaders in Natal Province, where the homeland is situated, warned that the plan would lead to futher unrest if the government tried to implement it, and the KwaZulu chief minister, Chief Gatsha Buthelezi, said his administration would refuse to have any dealings with the commission.

Four of those who died yesterday and today were killed by groups of black radicals who are conducting a campaign of violence against other blacks whom they regard as collaborators with the white segregationist administration. The other three were killed by the police in clashes with black demonstrators.

Botha appointed the commission to revise plans for redrawing KwaZulu's boundaries five years ago, following an outcry against the government's original plan for consolidating the homeland, which study groups estimated would require the forced removal of between 500,000 and 1 million people.